When I bought my car last month the vendor supplied me with the two original diamond keys that work (open the doors at least) and another one purchased in April from Fairfield Bmw. All new and shiny and in a bmw bag. Trouble is it doesn’t work…..what did he or Fairfield fail to do please? Thank you.
Diamond key
- Thread starter CliveN
- Start date
Attleborough, Norfolk
I assume it will unlock the car manually and start it (ie. been cut correctly)CliveN said:
If that is the case then you need to sync it to the car. But you need to do all three together or you'll lose sync in the others.
I wrote this down for someone only last week. i'll dig it out.
Found it:
1. Sit in the car, all doors, bonnet and boot closed.
2. Turn ignition to position 2, then back to off, then remove the key from the ignition.
3. Press and hold the Unlock button on the key, making sure you keep it held down. Now press the Lock button 3 times. You should hear a clunk from the door locks.
Repeat step 3 for each key. (You do not need to do steps 1 or 2 again)
Turn ignition on/off. Test keys.
1. Sit in the car, all doors, bonnet and boot closed.
2. Turn ignition to position 2, then back to off, then remove the key from the ignition.
3. Press and hold the Unlock button on the key, making sure you keep it held down. Now press the Lock button 3 times. You should hear a clunk from the door locks.
Repeat step 3 for each key. (You do not need to do steps 1 or 2 again)
Turn ignition on/off. Test keys.