Hei!
Det kan være at nøkkel har vært uten strøm for lenge.( høres sånn ut hvis batteriet er irret).
Da må du programere nøkkel mot bilen igjen. Siden startsperre fungerer høres det ut som nøkkel er i orden. Dette er måten å gjøre det på. Orket ikke skrive det på norsk. Så det er bare kopiert fra BMW service bok. Håper det fungerer.
BMW Remote Key Initialization Instructions
Up to 4 remote keys can be initialized. All remote keys must be initialized at the same time. Key initialization is only possible with the vehicle unlocked.
Procedure:
1. Enter the vehicle through the driver's door with all of the remote keys to be programmed. Close the driver's door.
2. Insert the first key to be programmed into the ignition and turn to the "On" position (not the "Start" position), then switch off within 5 seconds and remove the first key.
3. Within 30 seconds turning the key off, press and hold the "Arrow" button.
4. While holding the "Arrow" button, press and release ("tap") the "BMW Logo" button three times within 10 seconds.
5. Release both buttons. If the initialization for that key was successful, the doors will immediately lock and unlock.
6. If additional keys need to be initialized repeat steps 3 through 5 with the remaining keys within 30 seconds. Do not re-insert subsequent keys into the ignition.
7. Switching the ignition to the "On" position completes the initialization process.
If programming is unsuccessful, repeat this process. Further diagnosis may be required if the initialization is still unsuccessful.
Mvh Knut