We sent the 48V battery and generator from Audi A8 for TESTING . Will Odis help us with the issue?
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- Опубликовано: 30 сен 2024
- Welcome to another video with the Audi A8.
If you are watching us you know we end up stuck with this A8 after a repair that we carried out for customer. We already ran out of options so we decided to go step by step and send components for testing instead of replacing them and hope that the fault will just go away at some point. We also finally purchase odis and the HOPES were HIGH .... this is how it goes
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we replace hundreds of these starter generators a month at my dealer. its a recall campaign now, at least in the US, 27BQ. No need to drop the subframe. I remove the wheel arch liner and longitudinal member, drain the coolant, remove the boost pipe and the little inlet for it, its 3 T30's, disconnect everything from the generator. Remove the nuts, take the studs out with an extractor socket, take the bottom bolt out, loose the top one. That way you can rotate the generator forward to get better access to the hard coolant line on the back. I disconnect the engine mount actuator so the connector isn't in the way, then use a ball-ended T30 bit in a very skinny bit ratchet to get those bolts out. Pain in the ass, but doable. Then replace the studs with the same 13mm bolts that hold the front of the generator on. Once everything's buttoned back up, you close the charging contactor for the 48V, i believe this is done through battery management or central electronic but cant remember. You need 100A charger, but then you can monitor state of charge of 48V battery. They pretty much flat out refuse claims for replacing the 48V battery, I've only seen a couple techs try and do that, usually its not necessary and it holds a charge fine after that. Hope this was in some way useful.
remember he is in europe and they are right hand drive so its different
@@Qu13tM0n3yonly uk/ireland is right hand drive in europe 😅.
@@liniuxs And Cyprus
@@davidnorton5887 And Malta.
@liniuxs I did not know that, thank you, we'll he is in the UK
"Sick people designing cars and selling them to people for crazy money" could add "and letting the consumer testing them "
sounds like a job for diagnose DAN!
Haha..exactly my thought while watching this video
Or Ivan from Pine Hollow Auto Diagnostics.
Or M.a diagnostics. He resides in Glasgow.
@@catnip4885 I’ve seen some of their content before. I’d say that your suggestion would be a suitable idea.
Try to contact Diagnose Dan from the Netherlands. Maybe he could give you a helping hand.
Dealer tech in Canada here, we have cars with the 48v generators failing almost daily, Audi has an extended warranty on them here
Do you find you guys in canada are dealing with the high engine failures in the rs5 and the rocker arm failures in the 3.0turbos like these guys are over in the uk?
@@TDRE88 I want to know this too since I have 2018 RS5 (in Toronto area)
Damn that car is an absolute nightmare.
First fix the communication issues with the gearbox etc. The comm faults might also be the reason the alternator isnt switched on. Get a wiring diagram and check the powers/grounds on gearbox / power steering. If thats ok put a scope on the can wires, if you dont have one measure the resistance from canbus hi to canbus low. Should be 60 ohm (battery disconnected). With a active can network you should measure around 2,5V on the canbus wires.
Hello, I'm from Audi After-sales Service Center in China. Regarding the problem you encountered, I suggest you check whether the 48V generator has a fault. If your 48V generator has been repaired, it cannot be started directly when installed on the car. You need to use a high-power charger to charge the 12V battery. When the 12V battery is fully charged, it will charge the 48V power grid through the on-board DC-DC. When the 48V battery power exceeds 25%, the 48V power grid can be reset through ODIS, and then the generator needs to be encoded before the 48V power grid can be put into use again.
Thank you for this tutorial. I am a mobile tech and this helps me out very much much🥋💯
So very sorry you had such difficulty. Respect though. You guys are going the extra miles to make it right. It's so refreshing to see conscientious professionals nowdays.
I really feel for you guys. What a nightmare this is turning out to be 🤨
Just a thought guys. Could it be a misalignment of a female/male terminal in one of the connection blocks that you've had apart that's no longer making contact? Not treating you as idiots, but thought it worth a mention. It's now the kind of job that you wish the fairies would come in overnight, wave their magic wand and fix for you. But leave the diagnosis so you can learn from it 🥴
Jeez, car electronics are a nightmare on new cars! Keep at it man, you'll get there.
And this is why I love older cars. No nonsense technology. AC, cruise control and heated seats for winter, that’s all I need. Wish you well and hope you find solution for the problem quickly.
Now you're talking.
If you run a diesel best without a DPF too.
you missed esp and abs
So, if you close the charge contactor in the voltage converter (DC to DC) does the vehicle charge the 48V battery when you have a battery maintainer connected? you gonna need a charger maintainer that can handle 100A load though. I have had similar issues with the RS6 48V system when the 48V generator has an inverter issue.
Well the engine sounds beautiful. Can you imagine diagnosing this when the cars 10 years old, basically we’ve made stuff more disposable.
Probably won't be around in ten years, they're not manufactured to last, other than through the warranty period.
Diagnose Dan on RUclips can help u boss
Sadly this is the perfect example of why more mechanics are leaving the profession. Cars with high level electronics are now becomming like mobile phones - very disposable. I wish you guys luck with the A8, a lot of folks have suggested on various forums that it almost always comes back to the starter-generator impacting the whole electrical system, and that the system, particularly in the USA, has been an absolute nightmare with recall issued. I guess Europe really doesn't want to issue a recall.
I continue watching these guys! Amazing! I don't even have an Audi anymore. Good luck with the learning curve.
So complex… I miss my old 85’ Audi coupe GT with a simple and bulletproof 2.2L 5 cylinder.
Seems like a great collab opportunity with Diagnose Dan...
Dan is the man!
Bring back the carb engines less headache 😂
Sadly the future is IT. Give it 5 years all you will have to do is reboot your car, and wait 2 hours for it to update before your 10 minute journey to school. Vorsprungdorktechnic😂😂 it's not just the auto industry moving ever faster to component swapping technology. More problems for garages as the mechanical fixes get swapped for tech solutions. Easy to know how to fix a problem when you know what the problem is.... beauty of a channel like this one is there are people who watch that work in the industry who may have the knowledge... sharing the solutions benefits us all. Great content and great comments🤟
Only Audi make things this complex
48 volt generator is 7 year warranty from Audi including labour,check please
This is the kind of job that keeps me up at night ...lol
there is a recall on the starter/generator in the USA at least in new rs6's etc, people's cars keep dying on the road, there is updated unit now
Have a chat with VW Audi Specialists in Hitchin - they had similar issues sorted before.
this could be as simple as lose pins on the conectors , need to check gaurnteed it will be some thing simple in the end
need to contact diagnose dan
Have a word with diagnose dan on RUclips he seems to know loads about diagnostics.
Wow that's like an crazy investigation can't wait to know the issue by the way you guys at VAG technic are a pretty dawng good example of perseverance it becoming rare theses day's. Continue to work on this A8 you will found the problem im sure.
I had exactly the same issue with my q7 mild hybrid, just jump start it with an other car and close the connector in 48v battery with odis, it will work, I've done it twice on my one
I have the same problem in a Audi q7 mild hybrid,
So please explain how you did it!
We have a message coming up saying electric system
And reduce oil level ! Any idea why! We couldn’t find the problem
For the 48V battery we reconditioned but come back swollen!
Wow this hell of a. Headache to diagnose
Bring back w12
If i were you, i will go straight after those communication faults. I think when communication is restored then you will have no more faults on 48v system
When I use to work for Audi and the vehicles came in with these faults we would replace the starter generator and have to program. There is a software update. Sometimes we would have to try the software update first, which never work. Programming should solve the issue. Fault would stay until programming.
Just one question why don’t you take it to the dealer? Or why don’t you communicate with Audi since you are authorized service they will answer within a few days
No Thanks 😀 Waste of time and money
I will tell you my story. I went on holiday from the UK to Lithuania and I had a problem with the generator a few months ago. I just connected a small refrigerator to a 12v socket and the generator just burned out. So I thought I would have a big problem, I had to dismantle the engine, it was very difficult until we pulled it out with a generator, the only problem was the rear water pipe. I bought a new generator from an Audi dealership for €1100 and we took the old one back and gave a discount. So we installed the generator back, but the problems did not disappear, the batteries did not charge. we started looking for information on why the 48v battery is not charging. there was not much information, but we tried to charge a 12v battery, then we made a circuit from 3 batteries and a 12v charger and got a 48v charger 😀. so we charged the 48v battery with a load of 10A, put it back and the problems disappeared. I've been driving for a few months since April and everything is fine. I thank my father that he understands electricity and we were able to solve the problem together
Audi will be like apple. They will add software to stop 3rd party companies from fixing the problems.
What have Audi done to what was a great brand they have just lost the plot ,what a cluster f-k I think it has for me sealed their fate if you lads can’t fix it there’s no hope for joe soap great video shame about the car 🙈👍🇬🇧
A can of petrol, a box of matches and an insurance policy is the answer 😉
Stupid over complex modern cars
Had the same problem replaced the generator from dealer with the 12v battery now its perfect
Diagnose dan should help you with the car he has loads of knowledge on auto electronics#you guys are good too love the channel
Same fault 😂 I have land rover sport all system chang but not charge
oh this comment section is rough, you'll get this solved in the end which will help many people
No way should they build cars with this technology on it’s absolutely insane 👎
hi, can you send me the fault list? I know someone who might be able to help.
I've had enough of this- time for Roadworthy Rescue😊
This is worrying I have the same system in my S4 I have a warranty I hope I never need it.
You need to do "Closing of protection for charge of H-V battery". It is in adaptation of unit 21 (Batterly Energy Menu).
This will allow 48 V battery to be able to charge again. It is on when 48 V battery reach 10% SOC.
Recently a lot of 3.0 V6 TFSI and TDI the starter generator has been going bad I’ve seen being an Audi tech. Normal check for 48v coming out the generator and normally have a fault stored ‘replace control unit’ in address 00CC or invalid data from stater alternator stored in the engine ECU. Hope this might help😊
Adding all this hybrid junk to an already over complicated product has IMO become a joke. I’m staggered that anyone would buy these cars. Buy new ones on PCP and hand it back to Audi at three years max. The stress this is causing you cannot make this type of job worth taking on. Good luck.
The minimum voltage for a fully discharged 48V lithium-ion battery is typically around 40V to 42V.
So I think if the battery in the back is discharged below that voltage, the BMS will lock itself, and it might not send the correct command to the alternator generator to start charging again.
I had an Audi a3 with a 48v system. The car came from another shop. The battery didn't give any output voltage even with the car running. Took out the battery and checked the wiring. Everything was good. We installed another generator and activated it with odis and generator start charging again. But the voltage at that moment was around 43v and started to climb slowly.
I don't know how long that car was setting with this problem, but you need to check that battery and make sure it has the minimum voltage ⚡️
I'm with the guy below - get Diagnose Dan to fly over and lets diagnose it together :D "Fault confirmed, Audi are shit....."
If your having no communication codes you need a topology of what modules are off line. Then you’ll have to check that specific bus with an oscilloscope to see if the communication network is corrupted, if it’s a corrupt signal you will have to disconnect each module one by one till the bus restores, if it’s a good signal you’ll have to see what module has lost power.
Just a quick ‘Q’ on the modules showing fault codes. Are they saying they are not there (not on the DB)? or saying there is a BIT issue? As some modules have a return line separate to the DB. I have come across similar issues working in the aerospace industry where pins in the connectors are pushed back when connected and therefore have no contact. Without seeing the tech docs can’t suggest anything else :( good luck as it will take time to go through everything.
Personally if it were mine I would delete the hybrid system. Yes the car would be driving with fault codes.
Yeah it would-be work...but the way it is now is "planned obsolesence". Not meant to be fixed. But it can by ripping off all the bullshit parts. Its like an extreme fix of pulling off d fuel injection to put on a carb.
No what you need is a car that isn't a hybrid.
Then hang onto it and look after it.
Diagnose Dan on youtube
who puts cheap accelera tyres on a decent car ?
someone who has spent all their money on chains & bent valves, having no money left for tires -- that's who.
This type of problem will be more common as cars become "smarter" in their systems. I personally suspect this is not a wiring issue, more a communication bus issue with certain modules. The battery issue is likely related to these modules sleeping would be my guess. How you wake them up is the issue (I expect you have already disconnected the respective modules and reconnected them). I am very interested in what the resolution is. Any possibility of talking to the Audi support in Germany?
Is there a way to test the software interlocks for the sw system? In some systems like this there is an eprom within each CU module that all feed into the main controller. If an eprom in any module has a bad command in it's code you can get interlocked condition like this. You may have been thru these bits already....looking forward to seeing where this ends up.
That relay is very suspect to me. If you cannot actuate it to read the battery voltage it’s quite possible the coil is fried within it. Or the coil drive electronics are dead (transistors, mosfets, diode etc).
What a nightmare for you guys. Love your videos and appreciate your honesty in the great work that you do. Hopefully you will get to the bottom of the car. 😎😎
Just can say the engine sounds great Tomas! My condolences with the situation ans we all know you need to have that to learn the thing, so very-very hoping you will finish it and your relations with this particular customer will be on another level. Cheers from Sweden man.
Hey guys do you think DiagnoseDan could diagnose this horrendous machine?!
Good luck boy's
A trick we use in our dealership is to put a nut onto the stud and use a chisel to expand it. Then you can easily remove the stud and use 4 screws to put it back in👍🏼👍🏼 Saves 2 hours
Don’t give up mate!
Looks like you’re close to diagnosing the issue, plus gaining knowledge about these systems.. prob not the last one of these that comes thru the door
Used hybrid for private use, NO thanks.
It is so moronic that components need to be programmed. Make everything so it can be swapped from another car or new or aftermarket with no stupid programming.
Had an audi q8 with similar problems with the 48v system. Found corroded wiring node joint underneath the passenger carpet where the wiring runs through to the rear of the car to the 48v battery. This was down to water ingress though. Seems to be a common occurance on all later audi models. Worth a look.
What an overcomplicated engineering mess, the car that is not your great work and commitment to sorting it.
Mr vag tech, what are your opnions on tunning a cayanne 3.0L diesel ??? 2nd gen
DPF might not like it
@@VAGTechnic with dpf and cats deleted .
Every day is a learning day with cars, advancing all the time and unfortunately they are over engineered, working for a dealer is safe but owning your own business can be at times viably financial suicide
Have u try to check the DME , Engine ECU? Jz an idea….
In my case it didn't work with a charger it only worked with an other car and jump leads
Just enquiring what are q5 20l diesel like are they any good thinking of getting one but would like your opinion many thanks
Close the loop on the battery need odis an do the tsb for alternator can send you the tsb with svm code if u need it then restart the 48v system an close the loop
No need to drop subframe. We remove the studs and replace them with the same bolts as the other 2. Couldnt image trying to do this without odis and elsa. Hope you were able to learn alot about the 48v system without too many headaches
Ya no need for the subframe drop... long wobble extension with an external stripped bolt extractor socket woks like a champ. All done in seconds. Also, probally gotta do a close charge contactor function so you can force charge the 48v through the 12v posts with a 12v charger. Odis... and there is a live campaign for a replace of those things...
@@scootervette1975 no need to extract them on this version. You can take the studs off with an inverted torx at the end. Wish they kept this design. I was wondering if they did that as well, but I forget if they can due to the battery not being between 5-15%. I know sometimes the generator wont kick on without load as well. Turn steering wheel lock to lock it may charge again
Needs generator replacement recoding test plan as well
Oh yeah the transmission...adapt a BMW 6 speed...boo yah!
Good luck keep fighting, might need to check with factory for more info.
Would luv a car like that but all that eletonics shit puts me off ,gud luk
i will never sell my chrysler 300c, 5.7, it is 100 times simpler
Audi is the only car that is more of a money pit than a Porsche 🤣
Good advert your channel on why to avoid buying an Audi.
When Audi engineers the boss level of check engine lights and error codes.
Enjoying your videos very much, thx
Hope you guys catch a break with this one soon.
Can you look at the canbus comms with a scope ???
Why make cars so complicated ? Beats me
Fair play for showing when jobs go wrong
spending working time for noting
what are the faults ?
The joys of a hybrid
how much is odis now?
You did not have to remove the subframe at all. just use an extractor on th3 studs and then replace with regular bolts. All these generators are having a recall also
I have the same system I've not had a recall...
A lot of these starter alternators are going bad, not all car’s are listed for a recall
The recall just came out. They were previously getting replaced under warranty when they failed.
Well done guys. You inspire great confidence..
your great at what you do
Is it really worth it.