Dead Key Fob, No Problem: How to Start Your BMW When the Key Fob is Dead

Is your BMW not starting because the key fob batteries are dead? A dead key fob can be a frustrating experience, especially if you need to drive your BMW. Fortunately, there are alternative methods to start your BMW even when the key fob battery is dead. This article will explore the different methods to start your BMW when the key fob is not functioning. Whether you need a temporary solution or are looking for a long-term fix, this guide will provide the necessary steps to start your BMW and get back on the road. Whether you have a newer model with a push-button start or an older model with a traditional key, we have you covered.

Symptoms

• You can’t start BMW with key
• BMW key battery is dead can’t start the car
• The Comfort Access key does not work

How to Manually Start BMW

Step 1

Remove the emergency key blade from the key fob.

To remove the emergency key from a BMW key fob, locate the small release button or lever on the back or side of the key fob. Once you have located the release button, gently press it or move the lever to release the key. The emergency key should slide out from the key fob. In some models, the emergency key may be stored inside the key fob and require pressing a button or opening a panel to access it. Be sure to handle the key fob and emergency key carefully to prevent damaging the delicate electronic and mechanical components.

Step 2

Unlock the driver’s door with the metal blade. (Alarm may go off.)

Step 3

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

Step 4

Press the brake pedal, then press the start button to start the engine. If you hear a click from the engine or the engine is not turning over, there is a high probability the main car battery is discharged.

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. Your key may be defective, or the ignition module has a problem.

Tips

• Radio transmission can interfere with the frequency of the BMW key. Also, electronic devices in your pocket or charging in the car can cause interference with the keyless key fob.
• Use a BMW diagnostic scanner capable of reading BMW-specific fault codes to read DME fault codes via the OBD2 port under the dashboard.

The YOUCANIC Full System Scanner can read fault code through every vehicle’s control module, including the DME module.

This guide will assist you if the key fob batteries have died or the key fob is not working. If the main BMW battery has died, follow this guide to get into the car, then follow the instructions in this guide to jump-start a BMW with a dead car battery.

We hope you find the How to Start a BMW with Dead Key Fob Battery guide helpful. Check these troubleshooting and repair guides for more help on your BMW.