Car key replacement
Mercedes-Benz car keys
Mercedes-Benz uses its own infrared and radio key architecture, and the generation matters: the classic chrome-and-black "chicken foot" keys of the W203 era work very differently from the FBS4 keys on newer models. Some Mercedes key work is straightforward, and some is restricted at manufacturer level.
We support many models. Send us your registration number to confirm availability and receive a quote.
Key types we see on Mercedes-Benz
- Smart keys / keyless-go
- Classic Mercedes remote keys
- Emergency blade keys
Common Mercedes-Benz key problems
- • Key working intermittently at the driver's door only
- • Keyless-go no longer detecting the key inside the cabin
- • Worn key blade making the door barrel stiff
- • Only one key present on an older Mercedes
Mercedes-Benz key FAQs
Can you make a Mercedes key with no keys present?
It depends heavily on the model and year. Send us the registration and we will tell you honestly whether we can help.
Do you supply spare Mercedes keys?
For many models, yes, cut and programmed at your location. We support many models. Send us your registration number to confirm availability and receive a quote.
My Mercedes key buttons have stopped working — repair or replace?
We will assess the fob. Worn button pads are often repairable; corroded boards usually are not.
Need a Mercedes-Benz key?
Only Car Key provides mobile car key replacement, spare keys, vehicle unlocking and key programming across East London, Essex and surrounding areas.
For vehicle security, proof of ownership or authority to access the vehicle may be requested before locksmith work is carried out.