Question about BMW Cars & Trucks
Key fob is batteryless model, self-charging, and the spare key fob is doing exactly the same thing - so not a problem with the key it would seem.
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Posted on Jan 02, 2017
get in your car close door hit the unlock button then put key in the ignition cycle the key from off to on (STOP BEFORE START POSITION) cycle key off to on 7 times after the 7th trime the doors should lock the unlock automatically that means u are in trainning mode hit the unlock button on key fob. the key fob should now work if it doesn't then try changing batt
Posted on Nov 27, 2008
SOURCE: i have a grand voyager
dont go through all the hassles of removing the door trim just take the terminal off the battery for about a minute then reconect again worked on mine good luck
Posted on Dec 20, 2008
I have a 2001 C240 with the same issue. I removed the positive battery cable from the battery and kept it off for 30 seconds then replaced it. Everything was reset and the key worked.
Posted on Feb 10, 2010
unlock with key and hold key over for 30 secs(windows may go down)then lock with key and hold over for 30 secs(windows may go up)then press remote unlock button and hold for 30 secs,you have just reset system...the closer you have to get to the car for the remote to work the lower the battery power.sensor on top of dash(little black dimple)rarely,if at all, goes wrong.....
Posted on Jun 11, 2010
Method 1: Press lock or unlock button 4 times in succession. Method 2: Switch ignition ON and OFF. Within 10 seconds press lock and unlock button in succession.
This is the only manual reset
If this does not work go to your local auto electrician
The probable fault could be central locking activator passenger door
Posted on Jul 15, 2010
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