Quote:
Originally Posted by Eights-n-Aces
Comfort Access = Replaceable battery. Putting it in the slot only downloads vehicle data to fob for maintenance. Replacing the battery (2032) is explained in the manual and rather simple.
No Comfort Access = Rechargeable battery. Putting it in the slot recharges the battery and downloads vehicle data.
There is a DIY for replacing the rechargeable battery on another forum but it was for the E46. From what I've seen it might be the same process.
Pry it open, unsolder the battery leads, insert replacement, resolder leads, reglue case, reprogram fob
Replacement on Amazon for E9x
If the fob doesn't work and it costs $200-ish for a new one, it might be worth a $10 experiment. |
mmm... maybe it could be a solution but if i open the fob i'm pretty sure it won't be nice anymore, there's gonna be little marks all over the fob