Please choose the Keyfob that looks most like the Original

Mercedes-Benz Key Fob Replacement

Mercedes keys hide serious encryption behind that chrome SmartKey, and the dealer prices a replacement at $460 to $770 or more. We stock OEM-quality Mercedes-Benz key fobs and SmartKeys for the C-Class, E-Class, S-Class, GLC, GLE, and more, for a fraction of that. These keys are coded to your VIN by a specialist, and each ships fast from the US with a 30-day return. Run your year and model through the search up top, or send us the details from your current key.

Frequently Asked Questions

Why is a Mercedes key so expensive to replace?

Security. The Mercedes SmartKey uses heavy encryption locked to the individual car, so replacement and coding take specialized equipment. Dealers commonly charge $460 to $770 or more. The same key costs far less here.

What is the Mercedes SmartKey?

It's the chrome proximity key most Mercedes models have used for years. Keep it on you and the car unlocks and starts without taking it out. Newer models use an updated keyless fob with the same idea.

Who programs a Mercedes-Benz key?

A specialist locksmith or dealer with Mercedes equipment, since the key is coded to your specific VIN. Our key programming page points you toward the right help.

Do I need my VIN to order the right key?

It helps a lot. Because Mercedes keys are matched so closely to the car, having your VIN and the details from your current key makes sure you get an exact fit the first time.

My Mercedes key stopped working, battery or fob?

Start with the battery, since Mercedes SmartKeys use a coin cell (often a CR2025 or CR2032) and a weak one kills the range. If a fresh battery doesn't bring it back, the fob itself likely needs replacing.