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rainerweber1
C8 start stop malfunction
4 comment(s)
rainerweber1 (Author)
Yes, the automatic restart is failing too. It tries to restart, but then stalls. Did you manage to fix it yourself, or did you take it to a workshop?
DoriKoen
Given the automatic restart failure and the stored error, I'd recommend taking it to a workshop. It does sound like a battery issue, but a proper diagnostic check is needed to confirm. It could be more than just a simple battery replacement.
rainerweber1 (Author)
Thanks for the advice! I took it to a workshop, and you were right - it was a defective battery causing the start-stop malfunction. A new battery and diagnostic check cost me 290€. Problem solved!
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DoriKoen
I had a similar issue with my C8. Is the automatic restart also failing? It sounds like the car battery might be heavily discharged or defective. This is a common issue with these cars, especially if they aren't driven regularly.