Electric System Malfunction
09-20-2023, 12:19 PM
#1001
AudiWorld Super User
i do not believe his theory on what the bsg is doing is correct tho. that is what i want to talk to him about. my theory is that the bsg is strictly used to spin the engine up to a certain rpm when the engine is at zero load and off, i do not think the bsg is contributing output that would move the vehicle even one inch.
What I want to know is why the BSG self-obliterates more often in the winter. Condensation?
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ThomasWShea (09-20-2023)
09-20-2023, 12:24 PM
#1002
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I emailed transistor man - hopefully he'll see my email and join us here, I sent him my thoughts to date. Outlining what I think the BSG is doing. Let him know the manufacturer is now Vitesco and let him know I have email from Vitesco that I haven't replied to yet.
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angrypengu (09-20-2023)
09-20-2023, 02:49 PM
#1003
AudiWorld Super User
This is a very interesting article and it is clear that this man has not only the knowledge but also the determination to understand the processes taking place in the 48V Audi system.
But what is the conclusion? Do we know anything more about why BSGs fail en masse?
Maybe it's my English, but I couldn't find any conclusions or suspicions as to what causes this failure.
Maybe one day some frustrated Audi technician will tell us the truth
But what is the conclusion? Do we know anything more about why BSGs fail en masse?
Maybe it's my English, but I couldn't find any conclusions or suspicions as to what causes this failure.
Maybe one day some frustrated Audi technician will tell us the truth
09-20-2023, 05:37 PM
#1004
AudiWorld Super User
Oh, I must have missed this. Continental was fired?
09-20-2023, 05:41 PM
#1005
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This is a very interesting article and it is clear that this man has not only the knowledge but also the determination to understand the processes taking place in the 48V Audi system.
But what is the conclusion? Do we know anything more about why BSGs fail en masse?
Maybe it's my English, but I couldn't find any conclusions or suspicions as to what causes this failure.
Maybe one day some frustrated Audi technician will tell us the truth
But what is the conclusion? Do we know anything more about why BSGs fail en masse?
Maybe it's my English, but I couldn't find any conclusions or suspicions as to what causes this failure.
Maybe one day some frustrated Audi technician will tell us the truth
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angrypengu (09-20-2023)
09-20-2023, 05:44 PM
#1006
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not exactly, continental powertrain turned into vitesco in 2019 and became independent in 2021:
https://en.wikipedia.org/wiki/Vitesco_Technologies
https://en.wikipedia.org/wiki/Vitesco_Technologies
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angrypengu (09-20-2023)
09-20-2023, 05:49 PM
#1007
AudiWorld Super User
I think he is just now getting to a point where he might be able to troubleshoot. he replied to my email and is interested in talking. I told i'm I'm good with zoom, Skype, webex or FaceTime. I also told him there were 3 or 4 others that might be interested in joining the conversation.
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Mrclopec (09-20-2023)
09-25-2023, 02:59 PM
#1009
I just scanned this article; way over my head, but it does make me continue to wonder if using the auto stop/start (or not) is a significant contributing factor to alternator failures. If I understood, he talks about an undersized battery and the effects of the 48 volt "assistance" going up an extended hill/climb as possible aggravating factors to failure. If I got that right (and perhaps I didn't), then cars that are used with the auto S/S turned off all/most of the time, would not be operating the car in a way that strains the system.
Anyone else have a take on this?
Steve
Anyone else have a take on this?
Steve
2021 Audi A7 55 TFSI
21,442 miles
I received an "Electrical system malfunction! Please contact service." error pulling into my garage on Friday night and I had the vehicle towed to Audi on Saturday. Audi (dealership, service advisor over the phone) informed me that a "new generator was needed for the 48V charging system" and I'm likely looking at a 1-2 month turnaround time. Audi Q5 loaner was provided, thank god.
Now, why do I believe the start/stop system doesn't matter? I've turned it off religiously since mile 23 (when I first picked it up the car).
09-25-2023, 11:57 PM
#1010
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if the stop/start is turned off, does the BSG go into a dumb mode and just crank out 48v? Or, is it still executing some routine, and just forgoing the stop / start of the engine…i.e. is it still trying to “boost” the engine under certain conditions?
i think the answer to that is yes…
Other thoughts anyone?
i think the answer to that is yes…
Other thoughts anyone?
Last edited by ThomasWShea; 09-26-2023 at 12:03 AM.