If you need further assistance with your keyless entry system, then seek out a professional, such as one from Your Mechanic, to help you. If the key is not starting up the engine or locking the doors, then the key may be different all together and you would need to get a new key. If the engine starts up after these steps, then the key fob is successfully reprogrammed to your vehicle.

If the doors will lock then put the key in the ignition switch and try to start the engine.

Take the key out of the door and with the door shut, try to unlock the doors with the remote.

Unlock and lock the door with the key and push the lock and unlock buttons on the key fob at the same time - (do this 3 times).

Remove the key from the ignition switch.

Turn the key to the ’ON’ position and unlock the door with you hand and the remote at the same time.

Turn the key to the ’ON’ position and lock the door with you hand and the remote at the same time.

Put the key in the ignition and turn the key to the ’ON’ position.

Remove the battery cables from the vehicle, wait 30 seconds, then hook them back up (reset computer).

Remove the battery from the key fob and put it back in (unless you put in a new battery).

In this case, if the key can go into the doors and unlock them, then you would need to do the following: You could reprogram a key fob to a different vehicle as long as the key is the same for the vehicle. Check these troubleshooting and repair guides for more help on your BMW.Hi there. We hope you find the How to Start a BMW with Dead Key Fob Battery guide helpful. If the main BMW battery has died, follow this guide to get into the car, then follow the instructions on this guide to jump-start a BMW with a dead car battery.

This guide will assist you if the key fob batteries have died or the key fob is not working.

Use a BMW diagnostic scanner capable of reading BMW-specific fault codes to read DME fault codes via the OBD2 port under the dashboard.įollow the instructions in this guide to learn how to start your BMW manually.

Also, electronic devices in your pocket or charging in the car can cause interference with the keyless key fob. Emergency insert key also needs to be cut. This remote must be professionally programmed when received by a local automotive locksmith (click here for Locksmith Search ).

Radio transmission can interfere with the frequency of the BMW key. One 2008 BMW 3 Series Slot Keyless Entry Remote - brand new aftermarket (it does NOT have a logo) with uncut emergency insert key included.

Try the procedure one more time, ensuring there is no more than a two-second delay between steps. Also, try the same procedure with a spare key. Your key may be defective, or the ignition module has a problem. If your BMW doesn’t start, the key isn’t recognized. A check control message may appear on the dashboard stating the key was not recognized.

Note the key symbol on the steering column. If your BMW doesn’t have an ignition slot place the keyfob (not the metal blade) next to the right of the steering column.

Program 2008 bmw key fob