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      09-22-2021, 08:35 AM   #2
CarAbuser
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Drives: Z4 35i DCT / E92 335i DCT
Join Date: Jul 2010
Location: United Kingdom

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With any power related troubleshooting I'd start with buying a new battery before going near a garage. Even if the current one is recent the previous owner could have left the car sat for a long time and batteries don't like being fully drained. Given how many cars have been sat doing 0 mileage over the last year there's a good chance it's just that.

If you're still having problems after than then you would need to check the alternator is OK and that the ground straps are all still in good condition. That's something a garage might be useful for if you aren't into DIY.
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