If the batteries in your BMW remote have died, you will not be able to start the car or unlock the doors using the keyless feature. If your BMW key fob has stopped working this method may allow you to get back on the road. Follow the instructions in this guide to learn how to manually start your BMW. This guide will assist you if the key fob batteries have died or the key fob is not working. If the main car 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.
Can’t start BMW with key
BMW key battery dead, can’t start car
Comfort Access key does not work
How to manually start BMW
Remove key from your pocket. Remove metal blade from key fob.
Unlock the driver's door with the metal blade. Before you open the driver’s door, remove the metal key. Open the driver’s door. (Note alarm may go off.)
Place the key into the ignition slot.If your BMW doesn't have an ignition slot place the keyfob (not metal blade) to the right of the steering column.
Press the brake pedal and hold it pressed. If your BMW has a manual transmission, make sure to press the clutch pedal. Press the Stop/Start button quickly.
The alarm will go off if you manually open the driver’s door, but it will stop as soon as the key is recognized once you manually start the car.
If your BMW doesn't start, it means the key wasn’t recognized. A check control message may appear on dashboard stating the key was not recognized. Your key may be defective or the ignition module has a problem.
Try the procedure one more time, making sure there is no more than two-second delay between steps.