Mercedes Key Cases – Key Shells & Covers

FAQs

How do I replace a Mercedes key shell?

Replacing a Mercedes key shell is a straightforward process and can usually be completed at home in just a few minutes.

Carefully open your existing key and transfer the internal components into the replacement shell, including:

• Electronic circuit board
• Transponder chip
• Battery

Once fitted, reassemble the key case and test all functions before disposing of the old shell.

Do I need to program my Mercedes key?

No. In most cases, no programming is required because you are reusing the original electronics and transponder chip from your existing key.

As long as these components are transferred correctly, your Mercedes vehicle will continue to recognise the key exactly as before.

Important: Do not dispose of your old key case until you have fully tested the replacement shell.

How do I know which Mercedes key case I need?

Mercedes used several different key designs across different models and production years. The easiest way to identify the correct replacement key case is to compare your existing key with the product photographs.

Pay particular attention to the button layout, key blade type and overall shape of the key.

Can I transfer my existing electronics?

Yes. Our replacement Mercedes key cases are designed to reuse your existing electronics, transponder chip and battery.

This allows you to restore a worn, cracked or damaged key casing without the expense of purchasing a complete replacement key.