48V Lithium battery failure on Audi A6/A7 2018- MHEV. Fault code P0A7D00, P0A8000, P0B2900
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- čas přidán 20. 06. 2022
- Here is an interesting issue we have seen quite a few times now. We have made a TSB on it as it will definitely happen to others. TSB is attached in our Facebook Group to DDTSB and will be uploaded at the next bulletin upload. Feel free to share your experiences here or through our program. See more about the system in one of these self study programs: Audi SSP 664, 662, 649, 650. Or upcoming TSB No. 8442 in DDTSB.
www.ddtsb.com - Auta a dopravní prostředky
![Audi A6/A7 Mild Hybrid 48V real-life test (55 TFSI) :: [1001cars]](http://i.ytimg.com/vi/vLC-37H1Fv8/mqdefault.jpg)
Thank you for sharing.
Well explained and informative
There is a software issue. In address 00cc on odis the software should be at 527 but usually there at 525. Audi has a technical bulletin out for this.
My 2019 Audi A6 failed for the Starter Alternator issue. Every electrical system failed while driving. Brakes, steering, transmission, instrument cluster, HVAC, Sensors, even the windows and hazard lights. A very dangerous defect that could have really hurt someone.
Did it happen while driving? This I have not yet seen. In DDTSB we show the inside of the alternator and here its clear to see why it can happen suddenly while driving. Fortunately the alternator today cost less money than when it first was introduced.
@@ElektroPartnerApS -Yes this did happen while driving 75mph. We were very fortunate that it didn't happen at night (no lights, hazards, or airbags). Had to be towed to the dealer.
Same happened to me 1 month ago, i blocked an intersection for 1 hour 😅.
They have to change it on extended warranty, don't let them make you pay 2k euro for a product done wrong.
Hope yours will arrive soon 🙏
Is the issue resolved now?
Wow, my car was completely functional besides the warning light. Glad you made it home safe!
I just drove a 2020 a6 Allroad CPO car that stumbled on first acceleration several times. I guess it had been sitting. When I mentioned t9 the salesman, he just said: “yes, I noticed that”. Maybe why it hasn’t sold! I passed on it. I’m concerned about that, and won’t own one out of warranty. My lender supplies third party warranties for my cars. They won’t cover the a6 allroad. Lots of other Audis, but not this car.
Dear
It will be the same issue for Q7 of 2019 ?
whats happened to the volume ? half of the video was very low sound??
Hi dear I have issue with 48V battery charger if system
There is issue with the close charging contractor
I would be curious to see what's actually failing in the alternator. Based on what I've read so far it seems to be the root cause. Any plans on cracking one open?
Yes it could be interesting to open one. However I doubt that this fault would be visible or measurable. But if we can get our hands in one we will send it to Actronics so they can analyze it since they are the experts. Perhaps they can provide a remanufactured alternator if they can find the fault.
@@ElektroPartnerApS Its the MOSFETS / IGBTS and they have a clear top, you can see them fail. Look for a teardown.
@@ChrisDay-sx4lv Thanks Chris. If you repair one or have one in at your shop please send us a picture of the faulty MOSFET. mam@elektropartner.com Kind Regards Martin Møller
@@ElektroPartnerApS Yes I can do that, Could you get me a CAN capture of a starter generator / alternator in a working car? Im looking to retrofit one to my car but without a capture its impossible.
@C M. •, the producer admitted it is technical production issue, they will recall all, i changed mine last week.
if the 48 lithium battery is damage...the alternator will not charge???
For sure my friend
im from china ,very frankly speaking, 48v system feed lots of people in china. that is second greatest thing built by audi, number 1 is ea888
I got same problem, and I solved it, just need odis
luckily ODIS can often solve this if the SOC is not too low
Can you explain how you solved it?
how did you solve it i also use odis but i couldn't find a way
?
I am a lithium expert and have been working on lithium for years. Can you tell me an easy way to access the balance wires on this pack as I am working on one now
They are not in a simple configuration. I see 16 wires coming from the pack. The balance wires are in this lot. The balance wires should number 14 but why the 2 extra?
Has anyone actually worked on this batt rather than just look at the outside of it?
@@deanarchist That would be the temperature sensor / sensors, The most basic wiring you could imagine
@@deanarchistIts probably as in ID3 and 4 a Kalvin Measurement. Pin 1 und 12 are duplicated - so you can draw a Current from Pin 1 to 12 but also do a correct Voltage Measurement!
Hi, I have the same problem. I got the fault code P0a7d00 and I'm assuming if I charge the battery the problem will be solved but when I'm trying to go to the Specific Functions section it's asking for a code. The car is a 2019 Audi A7. I would appreciate it if you could give me the code for Special Functions. Thank you so much.
Sorry. We are not able to provide you the code.
My A8 is waiting for a new alternator, they said the 48v battery is 6%, i can imagine with those times of waiting, it will be down on 5% and force me to change that too, 7th day of waiting, they said 10 Hopefully 🙏.
Could you recharge the battery with forced charging?
@ElektroPartnerApS , Yes, i sent e-mails to Audi AG and they moved fast, i took the car yesterday from the dealer, it was on charge 1 week, everything is fine now, all on warranty 🙏
Just happened to my RS6 avant. Had to get it towed. 32k kms. Dealership said alternator is a 1-2 month wait. Now we wait
Happened to me too. Waiting for dealer response Monday 😢 Rs6 2020 50k km
@@OviLexSoft ,at least they change it on warranty. Good luck!
Good morning cood p0aa200
Good Morning. We have another TSB for this fault code. Interested you can buy access at www.ddtsb.com
Martin, for your slide show you were going back and forth a couple of times to talk again about a previous slide, it is best to just duplicate the slides needed more than one time so you may only proceed in a forward direction. During a professional setting such as a paid class, flipping around several slides simply shows a lack of preparation plus with all required slides in a series, there is less of a chance of making a mistake in the training lesson which tells something about your overall reputation as an Instructor. Imagine you were sick and a colleague had to give the training class for you and was not familiar with the need to go back and forth even though they might hold a transcript of the training lecture, problem solved. Thank you for the great information.
Slt😊😊