Quote:
Originally Posted by RL18
I don't have any leaks in that area, but I will be changing the water pump when I get my new harmonic dampener in.
I do think it could be related to water getting in a connector and shorting though. It seems the first night I got it back it was fine no high battery drain message and no rain, then as soon as I drove it in the rain their was a high battery drain message the next morning. It could be coincidental though
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The short he was talking about is in the small auxiliary water pump to the turbos in the N63 and S63 engines, it's actually a recall item. Not sure if they use this same pump on any other engines but worth checking your VIN against the BMW recall website.