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Discussion Starter · #1 ·
I have E39 M5 with nav,phone and DSP.
If I leave the car parked for approx 6-7 days without starting it, the battery will be dead. It jump starts very easily though.
BMW have put in a new battery 6 months ago but no difference.
They have done a drain test and say nothing is wrong.
I am in the UK so it is not very cold.
Is this normal?
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