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Old 12-02-2011, 12:46 PM
rush_ad rush_ad is offline
Location: Tampa
Join Date: Nov 2011
Posts: 59
Mein Auto: 2003 530i

I tried to replace battery in my E39 key. I checked the old (original) battery and it was showing good voltage. Even then I replaced it with new one. The key remote is still not functional.

When I put the new battery in, I was able to program the key successfully. I was able to lock the car with the new battery, but was not able to unlock it. The locking mechanism worked (with new battery) for two-three times and then it stopped again.

Any idea what is happening?
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