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hi second post today i have a 330ci but only one which the remote doesnt work is there away of tryingto reprogramme this one before i buy another cheers
 

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To re-program the key:
1.Unlock the car and get into it closing the door behind you,
2.Switch the ignition on and then off and remove the key,
3.Press and hold down the unlock button, then while holding the unlock button down press the lock button briefly 3 times within 10 seconds.
4.Release unlock button, the central locking should lock and unlock rapidly to indicate correct programming.
 

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Sorry to hijack, but what happens when that doesnt work?
Mine was fine all day, got out of the car just now and its not working.same parking place, nothing different..:(
 

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Possible battery change Egon? You don't have a rechargable one with your model.
Looks like it. Pants. Only to find out that the second key hasnt been programmed to the ecu.
Thanks for the help, and agin, sorry for the hijack.:D
 

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I have this key with mine...just opened her up and theres a CR2016 on board...i'm assuming thats replaceable?

 

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Same procedure.

1.Unlock the car and get into it closing the door behind you,
2.Switch the ignition on and then off and remove the key,
3.Press and hold down the unlock button, then while holding the unlock button down press the lock button briefly 3 times within 10 seconds.
4.Release unlock button, the central locking should lock and unlock rapidly to indicate correct programming.

If doesn't work then try again.(As said by many different programming methods)

How many keys do you have for the car also?
 
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