BMW 5-Series Forum (G30) - View Single Post - Telematics control unit bypassed causing battery drain?

CnSky · 10-27-2022, 06:31 PM

You will likely need to change the SOS battery also as they tend to die when the main batteries can't charge them as it's also low.

10-27-2022, 06:31 PM	#3
CnSky Major 333 Rep 1,028 Posts Drives: BMW 530E 2017 Join Date: Aug 2013 Location: Ireland iTrader: (0)	You will likely need to change the SOS battery also as they tend to die when the main batteries can't charge them as it's also low.
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