SLUDGED To Death: Tearing Down My SEIZED Audi 3.0T Engine
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- Опубликовано: 12 сен 2022
- The engine out of my 2011 Audi A6 has been lurking in the shop for awhile now. I decided is was time to tear it down and figure out what caused it to seize up in the car. I expected it was a headgasket issue as the exhaust was full of coolant when we pulled it apart. As I tore the engine down it seemed like there was no issue with the headgasket. All I found was sludge, and it only got worse as we went, the oil looked like jello in the oil passages. The sludge was so bad it caused the engine to seize.
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This is why regular oil changes are so necessary. Audi's long life service intervals seem to be a joke. Interesting teardown. Good job.
Mercedes has a 20k oil change interval. Then 15k for the Mercedes Diesel 3.0 TDI vans that should be 5k max because of severe use & having a DPF.
Long OCI's ruin everything, 5k should be a standard, especially for modern engines with specialized cylinder coatings, lots of chain tensioners, etc.
All OEM's care about is lowering the perceived cost of ownership.
@@twinscrolled most onwers should be doing their own oil changes
@@michaelbenoit248 My 2018 E Class diesel just went through it's 30,000 kilometer (20,000 miles) service - Third oil change. Engine computer tells me next oil change is due in 25,000 kilometers. Dealership service advisor told me to ignore that - change every 8,000 kilometers (5K miles). DPF regen system changeout in my model will run near $8,000 to fix if it goes faulty.
That teardown looked like heaps of fun. Nothing like disassembling something and not having to think about how it goes back together.
Thank you for totally curing me from any desire to own a late model Audi.
You have to be making good money in order to maintain a high end(exotic, etc) vehicle.
100%. Oil and filter changes are cheap compaired to engine failure. 8-10k intervals to keep the cost per mile of ownership down are an absolute joke.
Think about how I feel...I own a late model Audi...waaaa
@@michaelreynolds1904 lol fr I own a Honda and I change my oil every 3k miles or 5k kms
Hey Neil, I have an S4 with over 100,000 miles. With proper service, changing oil every 5 K it’s been completely reliable. A great car.
Btw common for intercooler bricks to fail and hydro lock the motor. Bet they kept driving it and blew it up. Head gasket looked fine
Would be easy enough to pressure test that cooler.
That’s what happened to the one I bought
Enjoy seeing how engines are made. Thanks for the disassembly !
JR, when you build your new shop, please make the same bright white floor. The reflective light really shows off a lot of the oil gunk on these engine parts. Awesome work.
Thanks JR for not saying the obvious... people change the oil
"Oil is the cheapest mechanic you can hire!" my grandfather.
smart grandpa!👍
Love this video. I drove a 2012 A6 with this engine for 8 years. Changed the oil every 5k miles and performed all routine maintenance. Never had 1 problem. I figured after 140k miles I was pushing my luck so I sold it but from the looks of the shape of the poorly taken care of engine you just broke down, I probably had another 100k left in mine.
LOL, honestly this isn't a bad engine to work on compared to many others. You can pull the supercharger off the car in under an hour. When we bought ours a friend and I went ahead and replaced the PCV, water pump, thermostat and supercharger oil along with a couple of the plastic coolant pipes under the charger. Honestly no big deal. I suspect it's scary for those that never ventured outside of the pushrod engine realm. The only job I cringe about on this engine would be a timing chain replacement but they are not super common when you keep up on oil changes (no 10k intervals).
Queue the "hey I needed that, but you broke it" comments 😂 this engine was awful to tear down. Thank you for the time though. Enjoyable videos.
Love the engine teardown, looking forward to rebuilds.
The gearhead in me enjoyed watching this engine tear down. I agree Audi has one of the worst engine designs to work on. Maybe the factory designed the engine to be so complicated so any major engine work would be so labor cost prohibitive that it be easier and maybe cheaper to just buy a new engine.
Audi is same as VW and Porsche and Lamborghini so within VAG there is lots of talent. Every engine is different and even the markets dictate different designs. You should always know what engine you are getting and what it costs to maintain it.
The intercoolers fail on these engines quite often which wound cause coolant in the exhaust. The pcv housing cracks too which will cause coolant in the oil. These are amazing engines but do require major preventative maintenance.
Thanks for convincing me I don't want a 3.0T-powered Audi. What a complicated mess that engine is!
This is why synthetic oil and oil changes at no more then 5k are very important for audi's. I've bought many audi's that didn't run or had problems and most the time it's someone used non synthetic oil, ignoired maintenance, or or timing belt/chain failure after recommended replacement.
Get a torch! As Matt says on Diesel Creek, "It can't be stuck if it'd liquid!"
If I had to take guesses, not a surprise it was a some failure in some collant line inside the supercharger. Entering collant into the combustion chambers through the intake, and then gradually mixing with the oil. Ending up seizing the engine.
I did the thermostat, water pump, serpentine belts, pulleys, and the supercharger service on my 2013 S5 and it really wasn't bad at all. No issues doing any of it with the engine in the car. Once you put the car in to service position there is plenty of room to work. Takes a bit of patience though :)
But it should not be so inaccessible those parts are usually around the engine no need to disassemble the whole thing to get to those maintenance heavy parts
Those who know, know and those who are used to American cars only will be lost in process 😂
Great video - i appreciate this content unlike some of the other automotive youtubers that just fill 25 minutes with fluff
Icon tools are very strong! Jusk ask to the Icon breaker bar that "I Do Cars" use in every teardown. That thing never snapped, even with the pressure from a loader. LOL 😂
Great video JR!
Replaced as whole units; he's referring to the car. German disposable engineering
i laugh any time i hear about how great mUh GeRmAn EnGiNeErInG is .... these are the same people who thought it was a good idea to become dependent on russia for energy , they aren't very bright.
Great to see a teardown on a complex engine like this. I have been watching quite a bit of this kind of thing on the channel I Do Cars.
Please don’t do that to your back. You’ll regret having a back injury.
Yeah just ask Jake.
42:20 “Look at the spring, look at the goo, eewwwww!”
Hahahaha!!!
Love the Teardown - interesting seeing complexity and checking out wear points
Normal engines are way easier to work on though. Think Japanese cars, Korean, American cars. German cars? They don’t want you to be able to work on them.
I’m excited about this video, I have a seized s4 that I’ve gotten running a couple of times but just STOPS outta nowhere
That was a great video. I watched every minute of it.
Love the length of this video!
Thank you JR. 👍
My guess is warped or cracked head, not to be confused with a crackhead.
😂😂😂
Watch JRG latest PSA....this is your head on Sludge....(video of throwing rods)......any questions?.
An engineering marvel and a mechanics nightmare rolled into one.
The stuff of nightmares.
That was so therapeutic watching him break down that engine. 👍👍👍👍
I love these engine autopsy videos
are we watching a "I Do Cars" engine teardown ? that dude has longer breaker bars and 'big blue' pry bar
Last video I watched you were selling the garage. Did it fall through, don't see it getting emptied out. Josh's cars still hanging around.
That was an awesome video good job guys
Looks like someone forgot to change the oil for 130,000 miles. Poor thing.
I think the PCV/crossover pipe combo thing could be at fault. I'm dealing with a similar issue. '13 A8 3.0t and while purging the cooling system I forgot to plug the fan in resulting in a pretty hot engine. You can imagine how hot it gets deep in there. Heard a little pop and coolant started mixing with oil + white smoke out of the exhaust. Still waiting on the part to arrive.
It’s your pcv
First thing I noticed when you pulled the supercharger off was the color of the coolant. The coolant in these cars is supposed to be pink not green, unless I’m missing something here.
Love these videos.
Wrong coolant and sludged oil go together.
What a learning experience!
Right on time.
MAC RBRT extractors could probably take those crank pulley bolts out, they’re designed for messed up Allen, Torx, and triplesquare bolts.
Just purchased a 2016 Audi S4 with this engine in it. Watching this video will give me nightmares now! 🥺
Pretty sure JR said it was generally a reliable engine somewhere in the vid but with oil that old even my Honda K24 isn't going to survive. Just replace the oil when it is due.
Very educational.
That block would make a nice coffee table .
Already been scrapped, trying to make it easier to move 🍻
The coffee would coagulate and never come out of the cup-SLUDGE
people always say that but in reality who actually wants an engine coffee table??
This is great I really like totaled engine tear downs. Also, I see reason 345.9 subsection 3 paragraph 9 for why to own a forklift is prominent.
Interesting content on todays vlog.
Gabe taught you well.👌
Good Evening John Ross
Well, at least the good parts are sellable. You could make some bank off that.
Already sold the supercharger 🍻
Nice! Quick 500-1k!?!?
Audi looks like it has improved it's brand reliability but there are still an above average amount of documented engine failures. On the turbo motors, when they fail it's almost always seized with engine sludge.
Glad I subscribed
Failed Intercoolers in the manifold. floods the cylinders. Injectors can be done in the car, everything but the timing chains can be done in the car
I love watching engine taredowns my favorite is Eric @ I Do Cars.
When I was 17 I rebuilt a 289 top to bottom. I'd never done it before. It was the 80s. Had a great time and it came out great. You see this and you think that time has long, long gone. It seems German engines (looking at you Audi and BMW) in particular are designed to prevent service and you have to think if you want to 'work on a car' it'd be better to turn and focus on electric where this kind of madness is nowhere to be found. It's a different paradigm, but it's just not this; not even close.
I'm doing this engine right now. Just pulled it out from my donor 2013 S4 and will be putting it into my 2011 S4. If anyone needs a detailed removal procedure - you can check vids on my channel. Ordered almost $2k of stuff from FCP for this engine (pipes, mounts, PCV etc, etc..). Should be delivered this weekend and hopefully I'll shoot some vids of replacing those things and finally adapting 2013 engine for 2011 car since it's not 100% same - different plumbing, different sensors, even different waterpump... Wish me luck on that...
Reminds me of the alien in "Battle for Los Angeles", where they try to figure out how to kill them. Lol!!!
The plastic on those engines will dry out and crack. Especially parts of the cooling system. 1000's to fix.
Just how stupid does the previous owner have to be to treat an expensive engine like that. Write out one thousand times: "oil changes cheap: seized engine expensive".
Thanks for solidifying the answer yo myself. I never want to work on this motor ever. 😆
I have only rebuilt one engine in my life. C3 Corvette 350. What a difference in engineering!
Thermostat broke..throw the car away!
😂
I just bought my first COPART CAR and it was a score I have a video posted now
Owned an a6 with this engine, while it Is a hassle to do any work you can still do it with the engine in the car. The pcv value is the black thing right at the bottom of that valley, had to replace that and it took someone who had never worked on cars before about 18 man hours 😅 also decided to do a few more things like get the injectors cleaned and flow matched while I was in there.
Also don’t really like how you’re portraying it, if you take time and realize all the connectors that you are breaking ‘because they got so hot’ have buttons to release them. And imo, for a 3 liter it can make enough power to make up for its losses, but seriously if a 16 year old can do the maintenance it can’t be that hard.
I'm am the absolute king of connectors, literally everyone I work with lets me pull the harness because I never break connectors. If they break they're trash, I released every single one. The plastics aren't designed to hold up to that heat, if I was fixing it I'd get out my tools and re-pin every connector with factory housings.
@@WatchJRGo Okay… my engine had 155k seemed to be a completely different experience than that one.
Great Job! Anything salvageable? Re-purpose heads?
Great video, I was wondering if you would have handled this very much differently if you were planning on trying to rebuild it. I'm sure that component replacement would have been cost prohibitive. The little balance shaft offset weight didn't look like it was enough to bother with including in the design, I'm guessing that the shaft had more balancing on the inside of the engine, right?
It’s 1 am, I’m drunk at McDonald’s and NEW WATCH JR GO
Another great video from JR. Thanks
It’s funny how closely related all of the Audi “V” engine are. The 3.2L, 4.2L and 5.2L are all pretty close to the same besides cylinder count. This 3.0T looks to be mostly a 3.2 with a blower on it and a little less VVT. Pretty much what I always say about these engines...lots of fasteners of a mind blowing variety. You can only reuse about half of them when reassembling. Most are torque to yield. Good luck putting one back together again...LOL. Engine out is the only way to go. Resealing one with all new gaskets? I see lots of “while you’re in there” projects that just makes it economically unfeasible to save one in this way. Sticking a new one in was the way to go.
Cracked piston
I use an engine flush every oil change . Liqui-Moly oe Amsoil and recently BG EPR . Though it has been said BG EPR is very good to remove / reduce gunk around piston rings .
Why? If you change it on time there is no need.
@@jamesmedina2062 Exactly. Completely unnecessary. I guess some people want to "feel good" about doing such things.
@@joeblowe7545 I think some people are paranoid or are trying to go extra on the cheap stuff. What they should do is build a savings account for later expenses. But if it's a Ford and the cleaner is cheap then maybe it needs it to clear carbon from the ring lands. Every car is different.
Safety first! In your experience, would the engine flush you used for the Camero make a difference on the Audi engine you just disassembled? Sans all of the coolant leaks. I can not imagine how so much sludge could build up in such a high performance automobile.... synthetic oil or quality organic oil. Awesome episode!
Wow. I don't know if that engine has its origins from the 90s 2.8 but it sure looks like things were just added on and added on for it to get that complex.
Wow everything is buried 😲 looks difficult to work on
That oil could be used for Orc blood for LOTR movies..
This is one of those engines that make you think electric is a good idea.
Or, it makes one think to avoid "German engineering" altogether.
Avoid German engineering that’s a given.
I’m curious to see what is coming up in the newest shop
Variable displacement AC compressor. Works a bit like a hydrostatic transmission. No clutch, so the input shaft is always spinning, and the amount of "compressing" it does is dictated by the angle of the internal swash plate the pistons are attached to. The plate can be shifted from completely flat (no compressing action) to extremely angled (all the compressing action) by that solenoid at the back of the compressor.
Also, VW *loves* using as many different type and size fasteners as they can. I'm surprised the R8 engine wasn't like that, because I guarantee you any other engine they make, you'll have half the contents of your toolbox out on the workbench by the time you're through damn near any job. They're particularly fond of 10mm, 13mm, and 17mm, but there is one size they almost never use (can't remember if it's 8mm or 9mm, one of those I think).
Standard metric bolt/nuts used are M6, M8, M10 & M12 sizes which require 10mm, 13mm, 17mm & 19mm spanners.
That poor engine.
Man, I've seen some sludge. I've never seen quicksand in an engine before. 😆
It's honestly funny to see outside opinions on how these engines appear to be "difficult" when in reality those engines are quite easy to take apart and teardown. supercharger off pays 5 ish hours and takes about 20 minutes lol. I will admit however, I did work on these most of my life as well as received audi training...I'm sure I have bias.
also, as I'm watching. When you guys were removing the intake flaps...the high pressure fuel lines are intended to be removed before the flaps. would've made your life much easier
That really helps them after the fact…
Ummm yeah...If you're doing a supercharger in 20 minutes when book time says 5 hours, please let me know who you are so that I would actively avoid you working on ANY automobile I may be forced into having service. Fortunately for me I do 99% of my own work on my cars.
My Milkshake sends all the cars to the yard
The Junkyard, where we're gonna charge.
An A for effort JR!
Fifty years on, I guess people will be looking in amazement at the mechanical complexity of some of these final generation ICEs before the technology became as redundant as steam engines.
never, at least not as long as i'm alive and that's all i care about ...im so glad i have a bunch of old cars and trucks that the commie 1984 fks in the gubmint can't control from a computer under some mountain in an nsa black site
03:47 Welcome to this episode of *Watch JR Throw his back out!😳😂
I was seriously debating buying a 2014 S4 3.0T until I saw this teardown. Holy god that DI system is a trainwreck.
its just like a complex Swiss watch. if keep it clean it should run quite well though
German cars are so poorly engineered. People say "over engineered" I just say "POORLY". Thanks for sharing.
Could probably find an owner for that supercharger at least. Somebody could send it off to be ported as a replacement for a stock SC.
It's already sold 💯
what is your plan for all the fasteners?
Boy that engine is an overly complicated design. Note to self: never own an Audi out of warranty.
You need a cheater bar. God I am so glad that I dork work on new engines.
Anyone who touts "German Engineering" needs to watch this. The complete lack of serviceability of this engine is unforgivable. It does no good to have hundreds of sensors if the repair requires pulling the engine and 15-20 hours of labor just to change the water pump or other components makes this an object lesson in over-engineering.
My guess is that the PCV valve failed and mixed the coolant with the oil. Merc racing makes a PCV relocation kit to deal with this common issue.
Another wonderful engineered German engine.
Seems like whoever owned that car, beat the shiaat out of it and knows nothing of maintenance.... or regular maintenance. Its a tough engine, and the RS3 engine is insane, like the B5 S4 engine