I’m a retired Audi tech, when there is a missfire on a cylinder the ECU will hide that cylinder meaning it stops spark and fuel flow to that cylinder. And I’m pretty sure Audi does not recommend boring cylinder walls. Check to see if the car is tuned as that most likely is the cause. Have fun with the timing chains ( something I don’t miss)
Yes these engines will deactivate the cylinder so the cat should be fine . I wonder if the car has been remapped and/or run on the incorrect grade of fuel
Dave is teaching more than mechanics… he demonstrates excellent management. He takes genuine responsibility for each employee, he uplifts them and provides opportunities for learning.
@@Plumbtired I’ve never seen that anywhere. It’s either flat rate by the hour or just by the hour. I get salary where I’m at but I’ve never seen 20% of the job lol
@@Lexidezi225 My bad. That should have said commission OR by the job. Here in the Atlanta area most get paid by the job. Some shops pay commission if the tech brings the work in to the business. Either way they get paid a decent wage here. Well until the recent economy.
Dave isn't just a business owner he's a coach and a mentor! What a great example of how to train and uplift employees. I am definitely subscribing and liking this!
I get that but I appreciate a slow burn to be honest. I like coming back throughout the week and thinking "oh yeah! Dave was wondering if that used engine would be salvageable". It builds up a suspense that becomes a good payoff - especially because these guys ALWAYS seem to deliver even on some real basket cases.
Agreed, I want to see the whole story and I guarantee others do. End the video with “follow to see what we do with this motor” or something. People will absolutely follow if there’s more. If it’s a one and done, they might be done.
Dave is not only teaching us about how to take care of your engine, but he's also sharing how to take care of yourself, your mind and your business. Great guy❤
No 😂 I do enjoy watching multiple automotive videos but I also found if you watch them enough especially when your tired their great for putting you to sleep 😅
You were absolutely right Dave when you said, if I tell you the answer you won’t learn. If you research it and figure it out yourself, you will remember it forever. I’m a master electrician and have taught many apprentice’s the same lesson.
As someone who is currently doing an apprenticeship and absolutely wants to learn how to do thigns properly and by the book. I would absolutely love working for Dave. He teaches the importance of accurate diagnostics. Unfortunately the guys I work with love to load up the parts cannon, and take wild guesses at everything. I don’t know any better than they do though so it’s very difficult to learn the way I want to learn when my mentors don’t think that way. So Dave’s videos are a great help
Elevator mechanic here. Elevators are so much electronics now compared to when I got in the trade 40+ years ago. Being able to diagnose a problem will separate the goats from the sheep. Reduce your frustrations also.
@jakob31448 Watch Pine Hollow Auto Diagnostics, ScannerDanner. Best mentors around. You can't get great mentors (for the most part) at trade schools because the schools don't pay enough to attract the great ones. Spend your time learning and working for yourself instead of wasting it with commuting to classes. Most of the students in the classroom will never be professional because they are just killing time. Good luck
Dave you’re a good educator. Always remind people it’s not a waist of money to dump your oil a little sooner than normal and transmissions ATF also. Don’t be afraid to replace that 12 volt battery at the first sign of weakness or failure. It’s easier on the whole charging, starting, and computer system. Don’t try to go for the longevity award, spend a little money on prevent to save dollars in the long run.
I am another one of those geezers that was not born with the mechanic gene. I watch Daves videos regularly (daily it seems)! I find his process fascinating. There has to be doctoral degree for this kind of exemplary knowledge. Seriously! Thanks for a lifetime of knowledge Dave! Kudos! P.S. Ilive down here in St George Utah and know who my new auto shop is!
While stationed in Germany my buddy bought a brand new Audi a4, always took impeccable care of it and did all the routine maintenance……still had nothing but problems with it, right from day one until 10 years down the road when he finally got sick of spending money on it and sold it.
All due respect. That friend of yours should’ve sold it right before warranty ended. 10 years paying for issues? Kinda hard to blame anyone but yourself 🤣
@@nicolasrulli it may have even been longer than 10 years, it still looked like new when he sold it as he always took great care of it. I told him to get rid of it too but it was the first new car he’d ever bought and I can see why he kept holding onto the dream of it being a good car but it just wasn’t. I think a lot of the problems were covered under warranty as it started giving problems right off the bat, but there aren’t many Audi dealers around here so any time something happened it was another long trip to drop it off and then go get it again. I remember the clutch going out on it once but not wearing out from use , the springs were breaking or something. Good looking car but I’d never touch one after seeing what he went through.
@@minnesotatomcat that’s fair. Nowadays we all know to buy from a nearby dealer considering all of the new tech on engines every year. Keep for a couple years and sell at warranty expiration. The price of depreciation is probably cheaper than keeping some cars after warranty is up
I like Dave's approach to the mechanics. I work in a large workshop of a big manufacturer. We have some of the best mechanics in our field. None of them know everything and we keep asking each other information all the time. That's how you get better. Keep it up Dave.
Low-speed pre-ignition (LSPI) is a phenomenon that can severely damage direct-injection turbocharged engines. It occurs when the air-fuel mixture in the combustion chamber ignites prematurely, before the spark plug fires, at low engine speeds and high loads. Here’s how LSPI can damage your engine: 1. Sudden and Uncontrolled Combustion In LSPI, the air-fuel mixture ignites spontaneously and uncontrolled, leading to a very rapid rise in cylinder pressure. This sudden pressure spike is much higher than what the engine components are designed to handle. 2. Engine Knocking LSPI is a form of engine knock, but it's more violent and unpredictable than typical knocking. The intense knocking can cause immediate and severe damage to engine components. 3. Piston Damage The rapid pressure increase can crack or break the pistons. The force can also cause the piston rings to break, which can lead to loss of compression and increased oil consumption. 4. Connecting Rod Damage The connecting rods, which transfer the force from the pistons to the crankshaft, can bend or break due to the extreme pressure spikes. This can lead to catastrophic engine failure. 5. Cylinder Wall Scuffing The high pressure and temperature can cause the pistons to expand more than normal, leading to increased friction against the cylinder walls. This can result in scuffing or scoring of the cylinder walls, which deteriorates the engine’s performance and longevity. 6. Spark Plug Damage The premature ignition can damage the spark plugs, causing them to wear out faster or even break. This can lead to misfires and further engine performance issues. 7. Bearing Wear The excessive forces from LSPI can cause accelerated wear of the engine bearings. This includes both the main bearings and rod bearings, which are critical for the smooth operation of the crankshaft and connecting rods. 8. Increased Emissions and Fuel Consumption LSPI can lead to incomplete combustion, which increases unburnt hydrocarbons and particulate emissions. This not only harms the environment but also reduces fuel efficiency. Prevention and Mitigation To mitigate LSPI, manufacturers and drivers can take several steps: Engine Oil: Use engine oils formulated specifically to reduce LSPI. These oils contain additives that help prevent the conditions leading to LSPI. Fuel Quality: Use high-quality fuels that are less likely to pre-ignite. Driving Habits: Avoid lugging the engine (running at low speeds with high load). Downshift to keep the engine in a more appropriate power band. Engine Tuning: Manufacturers are improving engine control strategies and hardware to minimize the risk of LSPI. By understanding and mitigating the risks of LSPI, drivers can protect their direct-injection turbo engines from severe damage and ensure their longevity and reliability.
@@Hellcat71782 of course. This is being caused by the fact that it's a direct injection engine, not the fact that it's boosted. By either super or turbocharging
Honesty in business pays you 20 fold in the future. I’ve learned that and am an example of it as a small business owner…. But remember honesty is NOT all, it’s the hardwork 10 hours a day 6-7 days a week until you reach the top and then you can slow down a bit after you Tom Bradied your craft (meaning you are the GOAT)
Hey Dave you're right with not just giving an answer. I was a Honda master tech shop foreman, worked for Carmax bla bla for 42 years. The kids just want an answer and do not want to work their way through a problem and diagnose it by themselves. That is what makes a good tech. I hate to say it but good luck finding guys that want to put up with the grief of this profession. I would also say that I have worked with a lot of techs, some are naturals and get it and there are the others. YOU GET IT!! Love your channel. Casey.....
To Dave at Dave's motors I am very Glad that you are a straight arrow shooter with people and that's why the Audi dealership recommended you to that young man
I’m a technician myself and seeing the amazing service really makes me happy . I’d be honored to come work alongside to learn as I grow in my career. Everything was really well spoken and straightforward. 10 out of 10 . Earned you a subscriber 🔥
It is uncanny how similar your method of teaching is to medical training. "Rounding" on the case of an engine, working through the differential, pimping the trainee... you're truly a master and professor of your trade.
I wish there were more professional and qualified shops like yours, excellent. People must be real comfortable knowing their working with competent professionals.
Hi Dave, greetings from South Africa, i run a shop here and we see alot of piston failures on Audi engines once tuned with incorrect parameters, all the best to you and your team, godbless.
Love that you not only show the incredible techniques and processes of fixing and building motors but also the fantastic management and people skills that also go into running a successful business. A lot of shops (and businesses in general) should take notes from you Dave!
Dude Dave’s a savage man, as a young 23 year old tech and owning my own mobile mechanic business already. Dave is as legit as it gets I’d cry just for the opportunity to work with him🙏🏼
Conditions, Cause, Correction and Confirm !!!!!👍 I’m own a small shop in the Boston area and that statement is part of my everyday working process and I see results since I’m learn this thanks to the video explaining by you. This help me to explain better to my customer the problem with the vehicle and I’m notice owner feel more confident in get the repair approved. Thanks great job. (I’m see we use the same parts supplier Workdpac , working with this company for many years as a primary supplier, excellent parts)
Injector got stuck open. Customer ignores warning and continue to drive a car; gasoline is washing cylinder out. Lack of lubrication caused ring/piston failure. Do not ever drive VAG cars if you have yellow light flashing warning!
@aygwm it would detect the misfire/detonation/knock/pre-igniton. It would pick up incorrect AFR and throw a code as well. Any flashing MIL or CEL means immediately turn off vehicle. That's immanent danger to the fuel system/piston/valves/cat/O2s (sinuses/brain cells (running rich).) In a nutshell - it means stop.
@@5thgearratchet If plug wasn't firing, ECM would shut off related injector. Any detected misfire, in Audi vehicles, will be followed by shutting down Injector and Ignition Coil. Unfortunately, stuck open injector is not correctable.
Honest, knowledgable, and forthright is how I ran my successful foreign auto business as well. I love how he teaches the young techs. Hats off to Dave and his employees!
Guy says he's learned to deal with punches. I feel buying any VW/Audi product warrants that resilience. They have some beautiful vehicles but they're not known for reliability. Great work Dave and your crew as well. Keep up the great service and content!
He's rich. It's easy to talk tough when anybody has money to fix a problem. A punk teenager who works for Star Bucks will be crying to his rich parents.
Thank you for showing us how to run a shop and business and how to treat customers and employess. Mad respect to you all! Really enjoy all your videos and shorts! Full time auto tech in S. Carolina here
Pay attention to "super knocking", LSPI. Detonation due to Low Speed Pre-ignition. It can happen at traffic stop races, (test driving/showing off a car) and it's a car that was at a dealership. Doing test drives... We have had it with 1 Porsche on the track. The engineer ran hot due to clogged radiator, particuls/little drops fuel started to burn to early in the cylinder. All can happen with DI engines.
@@DavesAutoCenterCentervilleso what was the quote to fix this engine? I feel so bad for this owner, true enthusiast can only afford those vehicles when they depreciate so much, and who knows how did the previous owners treat this beast. My best friend has one, and it’s such a pleasure to drive.
Dave, it is an Audi/Vw thing, ever since they switched over to FSI. I have been working on them for the past 20 years, and have had a lot of problems with them ever since they went to that delivery system.
I have a theory that the only thing keeping dealerships repair centers open are the liberals that are completely clueless about the world around them. Only thing they know is what their indoctrination school taught them and the lying legacy media tells them. Dealerships prey on those types and I would be willing to bet they knew that cylinder was toast when they sold him that car.
i'm gonna go to a local technology center to learn to become a mechanic starting in august and i enjoy watching this channel because it gives me a slight idea as to what it's like to work at an autoshop. Dave seems like a super awesome boss, hopefully i work under someone like him eventually lol edit: i definetly want to see more about this motor, only 75k miles and it's already in such bad condition really makes me wonder what caused all this.
The EA839 engine (which this S5 has) has a known problem with pistons cracking and rocker arm failure. Rocker arms were updated in the latter half of the 2019 model year with larger needle bearings. If the engine can be rebuilt (which I don’t think these AluSil blocks can be) then the rockers should be updated if they are the old version.
Great Channel- I daily a Mercedes Benz 1985 W126 300SD Turbo-diesel in-line 5 cyl. Uses no oil.- Oil changed every 2500 mi w/ Liqui Moĺli Syn & BG oil additive. Have 323,000 mi on engin- runs very strong. Steve frm Denver. 😊
Dave, be honest, how many customers have walked away peed off because they wanted the job done RIGHT NOW, and you stuck to your guns and said nope it's getting done right or none at all. PS, I'm a master tech with 40 years under my belt, I know and I'm still learning from you. Absolutely love the detail you give each engine and how you mentor the future gens. 👍
Amazing that we get to see behind the curtain of a shop that does it right. Love this channel…. I only wish every independent had this level of ability and integrity. Sadly, this shop is more an exception, than a (soft) rule. Do your research, people. It’s the best money you’ll spend.
I absolutely love this channel! and I watch your videos everyday. I have learned soo much because of you guys but the best part is your ethics and values. Your shop and team are the best in the business!! Thank you .
Hi Dave,Car Wizard channel talks about all these nice cars and how expensive it becomes to repair,not only the primary issue but the journey getting to it ,and he highlights the problem engines that these high marquee brands use that are just problematic . Lets' hope that you can repair this motor with minimal expense and parts. I think anyone wanting to own a second hand brand must get them D lot checked and make sure that they have a service record
I like how you explained everything to the guy and what you were going to do and his options that means a lot when you actually act like you car because most of the mechanics I’ve dealt with acted like I was a dumb ass and could give a shit less
VW engines are known for chronic build up that you need cleaned out quite often.. Could have led to injector failure, causing a lean burn situation due to the lack of fuel in the combustion chamber.
Hola 👋 señor Dave that’s a shame on Audi vehicles… breaking at 70k miles that’s total BS ,so all the showing off of a indestructible car from the movie “the Transporter “👀😳it’s just a big fat lie 😠😡what is happening with the car industry I know there is wear and tear but if I want a GM vehicle they are faulty and break right before the 100k miles,that’s why I appreciate channels like Yours where you expose the truth keep up the great work!!!Saludos!!!👋😃👋
You can blame Audi all you want, but the real problem is probably 2-fold: carbon buildup on the intake valves and low quality gas. These things are going to want premium fuel at all times. Don't cheap out on the gas on these things! No one warns car owners about the carbon issues with DI engines, and everyone I try to tell looks at me like I have 4 heads
@@philbrutsche8928 You are right that is another issue and also is the lack of maintenance we don’t own fancy cars but we take care of them the best possible to avoid high repair costs…but definitely car makers are cheating in some ways…I’m not a mechanic or expert in this subject but we work from check to check every week and we need to stay away from cars that are always breaking
In 1971 I bought a new BMW 2002. I used to take it to a German guy who worked on BMW, Mercedes, Volvo, and AUDI among others. He told me back then that AUDI was the crappiest of all the German cars.
Most likely this Audi mechanically wasn't well taken care of. Cheap Gas and lack of oil changes is my guess. Could be tuned as well. So no shame on Audi at all... This was all preventable.
pro-tip = whilst Audi do make physically nice cars with some great overall qualities, I managed to save for retirement by never owning another one after i sold the 3 i had. This engine will also most likely require lifters and rockers at a minimum.
It would be really amazing if you could start to do more follow ups on these videos. I often wish I could see you actually finding the problem and then showing us how you fix it in the shop
I'm curious Dave? If you had the time to build your own daily driver vehicle from scratch from the chassis on up, what type of vehicle would you build for yourself??? because you will be absolutely positive that what you are driving meets your exact specifications
Ah yes, the modern Audis... Which some of them mysteriously consume oil when new from factory and Audi has a chart that says 1-2 quart lost per oil change is within spec 🤦♂🤦♂🤦♂🤦♂🤦♂
You're talking about the EA 888 motor. This pile of garbage was able to consume 2 litres of oil on 1000km which is insane. And volkswagen had the audacity to say this was tolerable.
Almost all brands say it's only excessive if it consumes a quart or more per thousand miles on fresh oil. I have worked for Acura, Kia, Honda, Audi, and g.m. and that is the standard with all of them.
Literally all modern engines do that. It is the low friction clearances for the rings and many other reasons that the manufacturer didn't get to choose.
@@AsurasWrath164Yes the older EA888s were terrible about that once the got to 75k miles or so and the oil control rings and drain back holes became carbon fouled. They redesigned them and the newer ones don’t tend to do that. Unlike Hyundai they actually have a legit fix for the flaw, albeit expensive.
I’ve got a 2023 S5 and the call made me an instant subscriber. Hopefully, I won’t need you anytime soon. If you have any suggestions on how to keep the doctor away for it, I’d be obliged.
In Europe: making a student think is seen as work time, not as a pause/pauze (whatever spelling you prefer). Wouldn't it be better to give his brain a rest, in a new writing environment with tons on information bombarded to his mind, and let him focus and think WITH you for about 15 minutes? Then, when he starts thinking in the wrong direction you can push him back on the right track.
In America we work hard, take our lessons, and get better or get out of the way. Our jobs are not adult day care, but the opportunity is there to experience and grow if one is willing.
I’m a retired Audi tech, when there is a missfire on a cylinder the ECU will hide that cylinder meaning it stops spark and fuel flow to that cylinder. And I’m pretty sure Audi does not recommend boring cylinder walls. Check to see if the car is tuned as that most likely is the cause. Have fun with the timing chains ( something I don’t miss)
It's a Nikasil-like block too. Can't bore and hone that or it won't last. But those cylinder walls did not look that bad yet. Let's wait and see 😊
@@tomn.1568 no, it's iron coating. the germans stopped using alusil a long time ago. audi never used nikasil
Yes these engines will deactivate the cylinder so the cat should be fine . I wonder if the car has been remapped and/or run on the incorrect grade of fuel
@@richierich9761I'm so glad to hear the kitty's going to be fine😊❤️🐈
@@tomn.1568 You can probably put a sleeve in there. But boring won't work. Under the coating the block is too soft.
Dave is teaching more than mechanics… he demonstrates excellent management. He takes genuine responsibility for each employee, he uplifts them and provides opportunities for learning.
Hopefully he’s paying his techs more than $26 an hour and not ripping them off cuz he is probably charging close to $200 an hour
@@Lexidezi225 Most shops like this pay the techs commission by the Job. Usually 18%-20% of the job total.
@@Plumbtired I’ve never seen that anywhere. It’s either flat rate by the hour or just by the hour. I get salary where I’m at but I’ve never seen 20% of the job lol
@@Lexidezi225 My bad. That should have said commission OR by the job. Here in the Atlanta area most get paid by the job. Some shops pay commission if the tech brings the work in to the business. Either way they get paid a decent wage here. Well until the recent economy.
@@Lexidezi225 21 years ago I was getting paid 18% commission and all work I did they’re not lying to you. I live by Chicago Illinois.
You may think 'Dave' is teaching you how to fix cars... reality is he's making you aware how to fix your life. Briliant stuff.
yeah figure out what vehicle has the most problems...and then by a toyota.
Dave is teaching you not to abuse your car because its not worth to repair. If your car has problems then junk it and buy new!
The fact that the dealer recommended your shop shows how well known your quality of work is.
Dave is great but no dealer repairs lower engine failures. We just replace it.
Even the dealer knows it's crap, that's why they won't work on the engine🤣🤣🤣
@@BubblesTheCat1 dealer a don’t have the machinery like Dave does.
@@CoachJay7212Audi will replace pistons and some bottom end. Depending on engine and failure.
@@nickdelillo3060yes on a new car but that's a 5 6 year old car.
2:15 “there are no dumb questions. There are people who don’t ask questions that stay dumb..” what a bar
There are no dumb questions, only dumb answers.
Ħjbbbbb be bbbb mm ace
There are people that do ask questions and are still dumb
Barz bro🔥
There are no dumb questions... unless I already spent an hour explaining it to you last week 😂
Dave isn't just a business owner he's a coach and a mentor! What a great example of how to train and uplift employees. I am definitely subscribing and liking this!
I'm always a little bummed out when we don't get to watch you guys fix the engine. Hopefully you'll do a follow up episode and show us how it goes.
Appreciate the feedback! We are listening👍
Exactly
I get that but I appreciate a slow burn to be honest. I like coming back throughout the week and thinking "oh yeah! Dave was wondering if that used engine would be salvageable". It builds up a suspense that becomes a good payoff - especially because these guys ALWAYS seem to deliver even on some real basket cases.
Agreed, I want to see the whole story and I guarantee others do. End the video with “follow to see what we do with this motor” or something. People will absolutely follow if there’s more. If it’s a one and done, they might be done.
I’d love to see the fixin.
Dave is not only teaching us about how to take care of your engine, but he's also sharing how to take care of yourself, your mind and your business.
Great guy❤
Dave is a fantastic leader. This young tech is still new to the shop but I guarantee he appreciates the trust, openness, and help Dave is offering.
I could listen to this guy all day... He knows his stuff and takes care of his customers. Need more quality shops and leaders like this.
No 😂 I do enjoy watching multiple automotive videos but I also found if you watch them enough especially when your tired their great for putting you to sleep 😅
love when he calls and talks to the customer directly..... plus give a nod to the dealership for recommending Daves shop ,
its not really the dealership per se, its the guy working at the service department recommending as a help. Outside of workplace type of thing
“There are people who don’t ask questions, who stay dumb.” lol So true! Dave is such a great mentor.
You're one of the top 3 educators out there Dave I'm not a mechanic but still I learn a lot from you. You made me look up direct injection detonation.
You were absolutely right Dave when you said, if I tell you the answer you won’t learn. If you research it and figure it out yourself, you will remember it forever. I’m a master electrician and have taught many apprentice’s the same lesson.
As someone who is currently doing an apprenticeship and absolutely wants to learn how to do thigns properly and by the book. I would absolutely love working for Dave. He teaches the importance of accurate diagnostics. Unfortunately the guys I work with love to load up the parts cannon, and take wild guesses at everything. I don’t know any better than they do though so it’s very difficult to learn the way I want to learn when my mentors don’t think that way. So Dave’s videos are a great help
If everyone is just throwing shit until it sticks where u are at find a different place to work. That’s the worst way to be learn or be taught.
Elevator mechanic here.
Elevators are so much electronics now compared to when I got in the trade 40+ years ago.
Being able to diagnose a problem will separate the goats from the sheep.
Reduce your frustrations also.
@jakob31448 Watch Pine Hollow Auto Diagnostics, ScannerDanner. Best mentors around. You can't get great mentors (for the most part) at trade schools because the schools don't pay enough to attract the great ones. Spend your time learning and working for yourself instead of wasting it with commuting to classes. Most of the students in the classroom will never be professional because they are just killing time. Good luck
Learn from the best for life-long lessons!
Find some who will teach you how to properly perform diagnostics. Your wallet will thank you later.
Dave, I love that you are so gentle and polite and friendly to your staff and customers alike. Renews my hope for humanity
Dave you’re a good educator. Always remind people it’s not a waist of money to dump your oil a little sooner than normal and transmissions ATF also. Don’t be afraid to replace that 12 volt battery at the first sign of weakness or failure. It’s easier on the whole charging, starting, and computer system. Don’t try to go for the longevity award, spend a little money on prevent to save dollars in the long run.
Yet to see a tear down video where engine failed because someone changed the oil too frequently.
No one ever killed a car by over servicing it 🤔🇬🇧
I am another one of those geezers that was not born with the mechanic gene.
I watch Daves videos regularly (daily it seems)!
I find his process fascinating. There has to be doctoral degree for this kind of exemplary knowledge. Seriously!
Thanks for a lifetime of knowledge Dave! Kudos!
P.S. Ilive down here in St George Utah and know who my new auto shop is!
While stationed in Germany my buddy bought a brand new Audi a4, always took impeccable care of it and did all the routine maintenance……still had nothing but problems with it, right from day one until 10 years down the road when he finally got sick of spending money on it and sold it.
All due respect. That friend of yours should’ve sold it right before warranty ended.
10 years paying for issues? Kinda hard to blame anyone but yourself 🤣
@@nicolasrulli it may have even been longer than 10 years, it still looked like new when he sold it as he always took great care of it. I told him to get rid of it too but it was the first new car he’d ever bought and I can see why he kept holding onto the dream of it being a good car but it just wasn’t. I think a lot of the problems were covered under warranty as it started giving problems right off the bat, but there aren’t many Audi dealers around here so any time something happened it was another long trip to drop it off and then go get it again. I remember the clutch going out on it once but not wearing out from use , the springs were breaking or something. Good looking car but I’d never touch one after seeing what he went through.
@@minnesotatomcat that’s fair. Nowadays we all know to buy from a nearby dealer considering all of the new tech on engines every year. Keep for a couple years and sell at warranty expiration. The price of depreciation is probably cheaper than keeping some cars after warranty is up
I have a 2016 S3 that's tuned APR stage 1, with 195,000 mi on it, still purring like a kitten.
I love/hate my Q7. Just my long trip highway car. That's where it shines! 😮
I like Dave's approach to the mechanics. I work in a large workshop of a big manufacturer. We have some of the best mechanics in our field. None of them know everything and we keep asking each other information all the time. That's how you get better. Keep it up Dave.
Low-speed pre-ignition (LSPI) is a phenomenon that can severely damage direct-injection turbocharged engines. It occurs when the air-fuel mixture in the combustion chamber ignites prematurely, before the spark plug fires, at low engine speeds and high loads. Here’s how LSPI can damage your engine:
1. Sudden and Uncontrolled Combustion
In LSPI, the air-fuel mixture ignites spontaneously and uncontrolled, leading to a very rapid rise in cylinder pressure. This sudden pressure spike is much higher than what the engine components are designed to handle.
2. Engine Knocking
LSPI is a form of engine knock, but it's more violent and unpredictable than typical knocking. The intense knocking can cause immediate and severe damage to engine components.
3. Piston Damage
The rapid pressure increase can crack or break the pistons. The force can also cause the piston rings to break, which can lead to loss of compression and increased oil consumption.
4. Connecting Rod Damage
The connecting rods, which transfer the force from the pistons to the crankshaft, can bend or break due to the extreme pressure spikes. This can lead to catastrophic engine failure.
5. Cylinder Wall Scuffing
The high pressure and temperature can cause the pistons to expand more than normal, leading to increased friction against the cylinder walls. This can result in scuffing or scoring of the cylinder walls, which deteriorates the engine’s performance and longevity.
6. Spark Plug Damage
The premature ignition can damage the spark plugs, causing them to wear out faster or even break. This can lead to misfires and further engine performance issues.
7. Bearing Wear
The excessive forces from LSPI can cause accelerated wear of the engine bearings. This includes both the main bearings and rod bearings, which are critical for the smooth operation of the crankshaft and connecting rods.
8. Increased Emissions and Fuel Consumption
LSPI can lead to incomplete combustion, which increases unburnt hydrocarbons and particulate emissions. This not only harms the environment but also reduces fuel efficiency.
Prevention and Mitigation
To mitigate LSPI, manufacturers and drivers can take several steps:
Engine Oil: Use engine oils formulated specifically to reduce LSPI. These oils contain additives that help prevent the conditions leading to LSPI.
Fuel Quality: Use high-quality fuels that are less likely to pre-ignite.
Driving Habits: Avoid lugging the engine (running at low speeds with high load). Downshift to keep the engine in a more appropriate power band.
Engine Tuning: Manufacturers are improving engine control strategies and hardware to minimize the risk of LSPI.
By understanding and mitigating the risks of LSPI, drivers can protect their direct-injection turbo engines from severe damage and ensure their longevity and reliability.
Use good oil and fuel!
Now you've covered everything for a 'told you so' 😅😅
⬆️This guy knows
@@Hellcat71782 of course. This is being caused by the fact that it's a direct injection engine, not the fact that it's boosted. By either super or turbocharging
Best chat GPT response so far!
Alejandro seems like a good kid who's gonna go far in the field. Rooting for you bud.
Honesty in business pays you 20 fold in the future. I’ve learned that and am an example of it as a small business owner…. But remember honesty is NOT all, it’s the hardwork 10 hours a day 6-7 days a week until you reach the top and then you can slow down a bit after you Tom Bradied your craft (meaning you are the GOAT)
Hey Dave you're right with not just giving an answer. I was a Honda master tech shop foreman, worked for Carmax bla bla for 42 years. The kids just want an answer and do not want to work their way through a problem and diagnose it by themselves. That is what makes a good tech. I hate to say it but good luck finding guys that want to put up with the grief of this profession. I would also say that I have worked with a lot of techs, some are naturals and get it and there are the others. YOU GET IT!! Love your channel. Casey.....
Thanks Casey 👍
To Dave at Dave's motors I am very Glad that you are a straight arrow shooter with people and that's why the Audi dealership recommended you to that young man
I’m a technician myself and seeing the amazing service really makes me happy . I’d be honored to come work alongside to learn as I grow in my career. Everything was really well spoken and straightforward. 10 out of 10 . Earned you a subscriber 🔥
just working on my own truck, i’ve started to do the things i’ve learned on this channel, can’t thank you enough dave!!
Great to hear. It’s a rabbit hole of saving money and then wasting it on the truck anyway 😂
Great to hear!
Ive had my B8 S4 for almost 10 years now with zero issues. The most favorite car ive ever owned.
I owned a used 2016-17 s5 has 78k miles no issues and just done 80k miles maintenance service $1500 at dealership. I loved it!
Yes, we skipped the more recent turbo v6 and opted for the supercharged v6. Follow normal maintenance and enjoy the ride.
@@bdez1259 Isn't the turbo V6 just a newer version of the supercharged V6? I remember reading somewhere that the two engines were almost identical.
@@old_danit’s not the same, definitely similar but different. Not many parts can interchange
@@TheCompyshop Okay, thanks for clarifying. I was kind of curious since we have the supercharge v6 on our q7.
It is uncanny how similar your method of teaching is to medical training. "Rounding" on the case of an engine, working through the differential, pimping the trainee... you're truly a master and professor of your trade.
If you never say, “I don’t know” you never find out!
I don't know what I am doing but I am doing it! lol
This is also true if you never F around.
I wish there were more professional and qualified shops like yours, excellent. People must be real comfortable knowing their working with competent professionals.
Hi Dave, greetings from South Africa, i run a shop here and we see alot of piston failures on Audi engines once tuned with incorrect parameters, all the best to you and your team, godbless.
Appreciate you watching from South Africa. Best to you and your shop.
Love that you not only show the incredible techniques and processes of fixing and building motors but also the fantastic management and people skills that also go into running a successful business. A lot of shops (and businesses in general) should take notes from you Dave!
Let's take it a step farther and make these setting a system requirement for shop licensing 😊😊
Dave is such a great boss, teacher, and leader. This is how you do it (with Alejandro)
Dude Dave’s a savage man, as a young 23 year old tech and owning my own mobile mechanic business already. Dave is as legit as it gets I’d cry just for the opportunity to work with him🙏🏼
I love the fact that Dave offered to buy his young lad employee lunch while he studies. It’s little gestures like that go a loooong way in my book
I wish I lived near you, I would never take my vehicles anywhere else. You're about the best mechanic I've seen
😂😂😂😂 You've set the bar pretty low with that one
Conditions, Cause, Correction and Confirm !!!!!👍 I’m own a small shop in the Boston area and that statement is part of my everyday working process and I see results since I’m learn this thanks to the video explaining by you. This help me to explain better to my customer the problem with the vehicle and I’m notice owner feel more confident in get the repair approved. Thanks great job. (I’m see we use the same parts supplier Workdpac , working with this company for many years as a primary supplier, excellent parts)
Dave is a respectful stand-up guy who is fair and firm. His reputation says another about him.
Injector got stuck open. Customer ignores warning and continue to drive a car; gasoline is washing cylinder out.
Lack of lubrication caused ring/piston failure.
Do not ever drive VAG cars if you have yellow light flashing warning!
I was thinking that, or plug wasn't firing.
100%
I’m not sure if the car would pick up an injector failure?
@aygwm it would detect the misfire/detonation/knock/pre-igniton. It would pick up incorrect AFR and throw a code as well. Any flashing MIL or CEL means immediately turn off vehicle. That's immanent danger to the fuel system/piston/valves/cat/O2s (sinuses/brain cells (running rich).) In a nutshell - it means stop.
@@5thgearratchet If plug wasn't firing, ECM would shut off related injector. Any detected misfire, in Audi vehicles, will be followed by shutting down Injector and Ignition Coil. Unfortunately, stuck open injector is not correctable.
Honest, knowledgable, and forthright is how I ran my successful foreign auto business as well. I love how he teaches the young techs. Hats off to Dave and his employees!
My son had an A5 coupe.
We couldn’t get rid of it fast enough
He has a Honda Fit now
Couldn’t be happier
Did you get him a rainbow T-shirt to go with his new car?
@@Japplesnap Hahaha
Don't get a car you don't know how to take care of. Clown
@@Japplesnap😂😂😂😂
@@Japplesnapsavage. All of a sudden that Honda fit ain’t looking so good.
Guy says he's learned to deal with punches. I feel buying any VW/Audi product warrants that resilience. They have some beautiful vehicles but they're not known for reliability. Great work Dave and your crew as well. Keep up the great service and content!
He's rich. It's easy to talk tough when anybody has money to fix a problem. A punk teenager who works for Star Bucks will be crying to his rich parents.
Facilitating learning rather than telling
Absolutely fantastic
Thank you for showing us how to run a shop and business and how to treat customers and employess. Mad respect to you all! Really enjoy all your videos and shorts! Full time auto tech in S. Carolina here
Pay attention to "super knocking", LSPI. Detonation due to Low Speed Pre-ignition. It can happen at traffic stop races, (test driving/showing off a car) and it's a car that was at a dealership. Doing test drives... We have had it with 1 Porsche on the track. The engineer ran hot due to clogged radiator, particuls/little drops fuel started to burn to early in the cylinder. All can happen with DI engines.
Lspi is caused by pcv oil vapors being burned. There is a whole ase stud and new oil formulation standards
Alejandro, you're going to grow up and become an amazing mechanic. I love everything about Dave's Auto Shop.
OooOoOh we definitely need a part 2 taking a look at this motor 🙏🏻🙏🏻🙏🏻🙏🏻 🙏🏻
We will see what we can do👍
@@DavesAutoCenterCentervilleso what was the quote to fix this engine? I feel so bad for this owner, true enthusiast can only afford those vehicles when they depreciate so much, and who knows how did the previous owners treat this beast. My best friend has one, and it’s such a pleasure to drive.
Dave, it is an Audi/Vw thing, ever since they switched over to FSI. I have been working on them for the past 20 years, and have had a lot of problems with them ever since they went to that delivery system.
You know you have reached the top when dealers are recommanding you lol
I have a theory that the only thing keeping dealerships repair centers open are the liberals that are completely clueless about the world around them. Only thing they know is what their indoctrination school taught them and the lying legacy media tells them. Dealerships prey on those types and I would be willing to bet they knew that cylinder was toast when they sold him that car.
Love this guy. People who don't ask questions, stay dumb. Life lesson right there folks. Learnt that one the hard way.
i'm gonna go to a local technology center to learn to become a mechanic starting in august and i enjoy watching this channel because it gives me a slight idea as to what it's like to work at an autoshop. Dave seems like a super awesome boss, hopefully i work under someone like him eventually lol
edit: i definetly want to see more about this motor, only 75k miles and it's already in such bad condition really makes me wonder what caused all this.
Cheering you on in your career!
I was totally waiting for Alejandro to just say "no hablo ingles". Dude would've crushed the internet.
😂😂😂...
this channel would be soo much better if they showed them doing the repairs.
The EA839 engine (which this S5 has) has a known problem with pistons cracking and rocker arm failure. Rocker arms were updated in the latter half of the 2019 model year with larger needle bearings.
If the engine can be rebuilt (which I don’t think these AluSil blocks can be) then the rockers should be updated if they are the old version.
Dave is actually a real professor
Great Channel-
I daily a Mercedes Benz 1985 W126 300SD Turbo-diesel in-line 5 cyl. Uses no oil.- Oil changed every 2500 mi w/ Liqui Moĺli Syn & BG oil additive. Have 323,000 mi on engin- runs very strong.
Steve frm Denver. 😊
Dave, be honest, how many customers have walked away peed off because they wanted the job done RIGHT NOW, and you stuck to your guns and said nope it's getting done right or none at all. PS, I'm a master tech with 40 years under my belt, I know and I'm still learning from you. Absolutely love the detail you give each engine and how you mentor the future gens. 👍
Good to have your experience on our channel, thank you for watching. Yes, time is often an obstacle 👍
First mistake buying a Audi s5 with almost 80k miles
Bing 😮👍, it’s off the lot, then got screwed,😢
Yep. Only worth buying them after a 2 year lease and sell @ 80k
Probably been thrashed by the dealership sales rep 😂😂
send those 80k mile Audis my way!
nah first mistake was buying a 2018 there very defective
Amazing that we get to see behind the curtain of a shop that does it right. Love this channel…. I only wish every independent had this level of ability and integrity. Sadly, this shop is more an exception, than a (soft) rule. Do your research, people. It’s the best money you’ll spend.
You are the best boss/ shop owner in the world. I wish all are like you
Wow, thanks
Wow what a great TEACHER! EXCELLENT JOB DAVE!
I like it that he has the Amsoil sticker on his box. He knows great oil.
Amsoil is trash.
@@chrisroberts5099you clearly don’t know anything about oils
Dave we need a foloow up on this audi.. think it will be a good learning lesson for those of us that love those cars tnx dave
I absolutely love this channel! and I watch your videos everyday. I have learned soo much because of you guys but the best part is your ethics and values. Your shop and team are the best in the business!! Thank you .
Awesome! Thank you!
The thing is the dealer don't know, or don't care until the price is right.. we have their attention.. your a nice guy Sr..good luck.
Hi Dave,Car Wizard channel talks about all these nice cars and how expensive it becomes to repair,not only the primary issue but the journey getting to it ,and he highlights the problem engines that these high marquee brands use that are just problematic .
Lets' hope that you can repair this motor with minimal expense and parts.
I think anyone wanting to own a second hand brand must get them D lot checked and make sure that they have a service record
Great point!
I like how you explained everything to the guy and what you were going to do and his options that means a lot when you actually act like you car because most of the mechanics I’ve dealt with acted like I was a dumb ass and could give a shit less
Is the issue with DI being that you build up carbon in the valve seats? Otherwise I'd assume it has to do with running lean
VW engines are known for chronic build up that you need cleaned out quite often.. Could have led to injector failure, causing a lean burn situation due to the lack of fuel in the combustion chamber.
Nice to see there's honest shops / people left these days 👍 always looking forward to the videos to better educate myself even more
Hola 👋 señor Dave that’s a shame on Audi vehicles… breaking at 70k miles that’s total BS ,so all the showing off of a indestructible car from the movie “the Transporter “👀😳it’s just a big fat lie 😠😡what is happening with the car industry I know there is wear and tear but if I want a GM vehicle they are faulty and break right before the 100k miles,that’s why I appreciate channels like Yours where you expose the truth keep up the great work!!!Saludos!!!👋😃👋
You can blame Audi all you want, but the real problem is probably 2-fold: carbon buildup on the intake valves and low quality gas. These things are going to want premium fuel at all times. Don't cheap out on the gas on these things! No one warns car owners about the carbon issues with DI engines, and everyone I try to tell looks at me like I have 4 heads
@@philbrutsche8928 You are right that is another issue and also is the lack of maintenance we don’t own fancy cars but we take care of them the best possible to avoid high repair costs…but definitely car makers are cheating in some ways…I’m not a mechanic or expert in this subject but we work from check to check every week and we need to stay away from cars that are always breaking
@@philbrutsche8928 It sounds like this guy bought the car used, it may have been hosed up by the previous owner.
In 1971 I bought a new BMW 2002. I used to take it to a German guy who worked on BMW, Mercedes, Volvo, and AUDI among others. He told me back then that AUDI was the crappiest of all the German cars.
Most likely this Audi mechanically wasn't well taken care of. Cheap Gas and lack of oil changes is my guess. Could be tuned as well. So no shame on Audi at all... This was all preventable.
I love this guy!! The knowledge that he has...mindblowing🎉🎉🎉I hope Alejandro appreciates you sir...and the chance that he's got!!
pro-tip = whilst Audi do make physically nice cars with some great overall qualities, I managed to save for retirement by never owning another one after i sold the 3 i had. This engine will also most likely require lifters and rockers at a minimum.
Fun to drive but no reliability... only lease one, turn the keys in and walk away.
And timing chains.
It would be really amazing if you could start to do more follow ups on these videos. I often wish I could see you actually finding the problem and then showing us how you fix it in the shop
We want to see the end results as well!! Thanks for posting.
Such an enjoyable video watching Dave interact with his team! ❤
Please Keep us Updated!! Great Vid!!!
Alejandro’s eyes sparkled when boss man offer him dinner and a movie 😂
A real apprenticeship. Beautiful
Am I missing something? Isn’t this the dealers problem as this would be covered under the bumper to bumper warranty?
Hope there will be follow up videos on this....poor Audi😭
I'm curious Dave? If you had the time to build your own daily driver vehicle from scratch from the chassis on up, what type of vehicle would you build for yourself??? because you will be absolutely positive that what you are driving meets your exact specifications
What are you guys doing with the 1979 f150?
I applaud your level of communication with customers!
No warranty? It's bought from a dealership
Dave, I like the way you speak with your customers.🙂
Dave is the man!
A true and honest professional is Dave 👍🏾
Definitely interested in seeing the rebuild on this one
Dave is a solid teacher.
looking forward to seeing the outcome of this job. Like the Lamborghini and the Indian!
Dave not just a legend in cars, he a lecturer too 🎓🎉
Ah yes, the modern Audis... Which some of them mysteriously consume oil when new from factory and Audi has a chart that says 1-2 quart lost per oil change is within spec 🤦♂🤦♂🤦♂🤦♂🤦♂
You're talking about the EA 888 motor. This pile of garbage was able to consume 2 litres of oil on 1000km which is insane. And volkswagen had the audacity to say this was tolerable.
Beautiful nightmares!
Almost all brands say it's only excessive if it consumes a quart or more per thousand miles on fresh oil. I have worked for Acura, Kia, Honda, Audi, and g.m. and that is the standard with all of them.
Literally all modern engines do that. It is the low friction clearances for the rings and many other reasons that the manufacturer didn't get to choose.
@@AsurasWrath164Yes the older EA888s were terrible about that once the got to 75k miles or so and the oil control rings and drain back holes became carbon fouled. They redesigned them and the newer ones don’t tend to do that. Unlike Hyundai they actually have a legit fix for the flaw, albeit expensive.
If this is real and not scripted, you are one hell of a boss and leader!!!
watching Dave skate around answering the question was priceless...Its OK Dave, just say you don't know either
Spoken like someone that doesn't have a clue
@@Davidsmithisyourdad Yep. And spoken like someone with more ego than experience
He knew it was LSPI. Those of us with DI engines pay attention to guys like Dave so that we do NOT experience LSPI firsthand.
I’ve got a 2023 S5 and the call made me an instant subscriber. Hopefully, I won’t need you anytime soon. If you have any suggestions on how to keep the doctor away for it, I’d be obliged.
Need to use the olive oil for that bill
Live these guys content. Very educational and very interesting. Could watch all day 😊
In Europe: making a student think is seen as work time, not as a pause/pauze (whatever spelling you prefer). Wouldn't it be better to give his brain a rest, in a new writing environment with tons on information bombarded to his mind, and let him focus and think WITH you for about 15 minutes? Then, when he starts thinking in the wrong direction you can push him back on the right track.
I think Dave might have realised that, hence the offer to buy the lad lunch.
I second that 👍🏽 Pending the "pupil" has enough knowledge to actually comprehend what the teacher is explaining. 🤙🏽
In America: Professors and the general public don't believe breaks are beneficial to learning :/
In America we work hard, take our lessons, and get better or get out of the way. Our jobs are not adult day care, but the opportunity is there to experience and grow if one is willing.
@@bnellyy GET TO WORK, YOU!
Dave’s delight, options of opportunity and opposition.