1. Autos
Send to a Friend via Email

Your suggestion is on its way!

An email with a link to:


was emailed to:

Thanks for sharing About.com with others!

You can opt-out at any time. Please refer to our privacy policy for contact information.

How To Replace the Battery in Your Car's Keyless Remote


4 of 7

Removing the Battery on Painful Car Remotes, like Mercedes-Benz
Replacing a Mercedes keychain battery.

Slide the lever sideways and pop out the emergency key.

photo by Matt Wright, 2009
If you've read this far you obviously don't have the one-step replacement cover on your car remote. You're at a crossroads. The left fork leads to a life of unlocking your car door with a metal key, the right leads to a difficult but completely do-able battery replacement followed by a year of hands-free bliss.

This procedure covers Mercedes remotes, but the steps are similar for many higher end units.

Here we go:

Step 1: Remove the metal back-up key from the remote unit by sliding its locking mechanism to the side then pulling the key out.

  1. About.com
  2. Autos
  3. Auto Repair
  4. Quick Tips!
  5. Keyless Remote Battery Replacement - Mercedes-Benz

©2014 About.com. All rights reserved.