Sync Remote Locking Functions

Sometimes your key buttons will stop working resulting in no remote central locking.

Before you conclude the key battery has failed we recommend you resync the key as follows:-

Method 1

1. With both keys, get in the car and close all windows and doors.

2. Put working key into the ignition and turn to position 1 (the accessories should turn on)

3. Turn the key back to position 0 and take the key out of the ignition.

4. Using the working key, hold down the unlock button, press the BMW logo (lock button) 3 times, and release the unlock button. Doors should lock and unlock.

5. With the new key, hold down the unlock button and press the BMW logo (lock button) 3 times and let go of the unlock button. Doors should lock and unlock and you’re done!!

Method 2

1. Switch ignition on and off within 5 seconds, with all doors closed.

2. Take key out of ignition and press unlock button. Hold unlock button whilst pressing the lock button 3 times, all within 10 seconds.

3. Release unlock button.

4. The system recognises re-programming by locking and immediately unlocking the doors.

5. You have to do your other keys within 30 seconds after reprogramming your first key by following steps 2,3 & 4 only.

Method 3

1. Turn key to position 1 five times very quickly

2. Remove key

3. Hold unlock button then press lock button 3 times, release unlock button.

4. If you have another key do the same button pressing within 30 seconds

5. Turn on ignition to finalize

Method 4
For Older 3 Button Key (E36, E38, E39)

Remote Key Re-Initialise – If a key fails to operate remotely, it will have to be re-initialised (all keys in sequence at the same time)

1. Get in and close all doors

2. Turn the ignition on & off quickly (no more than 5 seconds) to start the process. Next action must take place within 30 seconds

3. First key – hold down button #2 (unlock – on the bottom left with the key blade pointing up) while striking button #1 (lock – the BMW logo) three times. Release button #2. This should be confirmed by door lock operation.

4. If you have more than 1 key then you need to repeat for the other keys within 30 seconds of first or they will be rendered inactive.

5. After last key then cycle the ignition on/off to finalise the process (it is not necessary to start the engine).

Leave a Reply

Your email address will not be published. Required fields are marked *