Quote:
Originally Posted by Pointerman
The comfort access key battery is not rechargeable.
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It must have been then on my e46 (2002 M3) the dealer told me to alternate my 2 keys to charge them. I drove that e46 for 7 years, never did have a key charge problem.
the last 3 Bimmer's I did not have long enough for the key to be a problem, I guess you are right then that the battery needs to be changed when it stops working properly.