How do you start a BMW with a mechanical key?

How can I start my BMW with the mechanical key? I can't get my keyfob to work, and I need to leave the house!

Answer
Nowadays, most cars use keyfobs instead of their metal alternatives. But BMW’s come with an emergency key in the keyfob, just in case. Follow these steps to start your BMW with a mechanical key:
  • First, remove the emergency key from your key fob by pushing the button on the back of the keyfob and pulling it out.
  • You can use the key to unlock the driver’s side door. The car alarm might go off, but don’t worry. It’ll turn off when you start the car.
  • If your BMW has an ignition, insert your key. If it doesn’t, put the key fob into the slot next to the steering column with the key symbol.
  • Next, press and hold the brake and press the Stop/Start button.
Once you’ve followed those steps, your car should start! If it still doesn’t work, your key might be defective, or you may have an issue with the ignition module. At that point, you should bring your car to a professional and have them take a look.
If you’re worried about getting locked out of your car, get roadside assistance with Jerry. Jerry’s leading roadside assistance connects you with their nationwide network of over 55,000 service providers. That way, you’ll have access to lockout services, key replacements, jumpstarts, and more—no matter where you are!
Liz Jenson
Answered on Oct 28, 2021
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