Alternator failure related to mild hybrid system?

[Mark2]

 When this happened to me it lasted about 20 miles but that was having the aircon on etc

[Hardip Singh]

Hello Neil

Our alternator stopped completely so battery didbt work. 

Rescue service guy charged the battery but it only lasted about 10 minutes at the very most. 

We only turned engine only to help park in drive way, which again the car only drove for 5 mins, by that time the battery had drained. The alternator wasnt doing anything. 

Hope that helps.

Hardip

[Voyt]

Hi,

so same happened to me… A7 50tdi 2019, all codes matched the document from previous posts, Audi UK pays for everything. Dealership said that the issue is known for about half a year and I should get back my car on Monday. Buckinghamshire 

[Deadrich]

Has anyone got experience of having this replaced with TD1 registered? Work was approved then declined by local dealer as TD1 flag detected. I had EGR mapped out earlier this year after spending fortune replacing the intake manifolds. 
Dealer are saying it’s no longer covered under the 7yr warranty. 
I’ve escalated to Audi, not holding breath, but wondered if anyone else has had experience in similar situation. 

[cliffcoggin]

I doubt it Richard. Any significant modification usually invalidates the warranty, whether it is related to the problem or not. For your sake I'd be glad to be proved wrong.

[AlexR]

Hi All

Had the same issue 5 days ago. Symptoms as listed in the discussion. Yellow ELEC FAULT and a cascade of associated messages along with load-shedding of multiple items such as A/C, MMI,Start/Stop button greyed out etc. Fortunately, I was on my way home. Tried to start the car and but it hardly turned over. Used my NOCO jump starter and that got in running instantly. Given that the battery was flat, I put it on charge and drove it directly to Audi with as many power using items switched off. Managed to cover the 15 miles or so.

Having done research overnight, I read up on the 7 year recall and advised Audi of this. They said they would call me after diagnostics. The call confirmed a failed BSG. I also emailed a copy of the BSG Recall Doc that confirmed the no payment would be due. Audi subsequently confirmed that the repair would be FOC. Collecting the car on Monday. Very relieved not to have to pay the bill! My car has the build code 9G8.

I think earlier comments suggesting that the MMI or a light should give a warning that the battery is no longer charging. This was always the case on older cars that had an IGN light so you didn’t get left in the lurch.

 

recall doc below:

Recall reference

R/2020/265

 

Recall Type

Car

 

Recall Date

2020-10-02

 

Reason for concern

MOISTURE MAY ENTER THE BELT DRIVEN STARTER-ALTERNATOR

 

Reason for recall

It is possible that moisture may enter the belt-driven starter-alternator.

 

Remedy

The starter-alternator must be replaced on the affected vehicles.

 

How to check if the vehicle is recalled

Contact the local AUDI dealership or manufacturer. You will not need to pay for anything involving the recall.

 

How the manufacturer will repair

The Recalled vehicles will have the fixing checked and corrected as necessary by and official AUDI service.

 

AUDI Reference ID

27H8

 

Number of affected AUDI cars

11936

 

[Mark2]

When I suggested to Audi they have a ‘ battery not charging ‘ light they told me this was no longer an EU build spec requirement. With so many systems requiring power you would think such a light should be even more important , but the Brussels mandarins who all go to work on a bike do not think so?

[DieSel-Q]

... On another forum a member had loads of written exchanges with the DVLA / DVSO on the same subject and they just shrugged a lot.

[AlexR]

I think a fundamental problem might be that some dealers will check to see if there is a Recall on a car. By this I mean a Recall that is proactively pushed to owners even if their vehicle is fine.

I could be wrong, but I think that some dealers may not realise that there are a number of active Recall items that only become applicable if a given unit fails. In my case the affected part was the MHEV Belt Starter Generator.(BSG)

Whilst it should not be necessary, it is worth keeping an eye on what recalls are in place on your car, so that if a relevant fault occurs you can take the evidence to Audi. An example is in my post above.

This information is on the gov.uk website at https://www.check-vehicle-recalls.service.gov.uk/recall-type/vehicle/make

Edited 4 hours ago by AlexR

[AlexR]

Example for the Audi A6 2019 (MY2020). Part list as it did not fit on the screen grab.