Mercedes-Benz key replacement
Key won't turn, or the car won't recognise it? On a Mercedes that's often the key and often the electronic ignition switch behind it. We cut and program replacement and additional keys, and work on the EIS/EZS itself.
WhatsApp- From $125
- European transponder keys. Proximity keys from $145.
- All keys lost
- Supported on Mercedes from approx. 2003 to 2015.
- In person only
- We do not offer mail-in service.
- 3 and 6 months
- Keys carry 3-month warranty, module repairs 6.
Is this your Mercedes?
The symptoms we get called about.
- Key won't turn in the ignition
- Car doesn't recognize the key
- Dash and electronics power up but the engine won't start
- Ignition or steering lock fault on the display
- Key worked intermittently, now doesn't work at all
You don't need to know what's wrong with your Mercedes. That's our job. Tell us the model and year — we'll take care of the rest.
What we do
Keys, and the ignition switch behind them.
Mercedes-Benz keys
All keys lost supported approx. 2003–2015.
- Replacement keys
- Additional keys
- All Keys Lost — approx. 2003–2015
EIS / EZS — electronic ignition switch
- EIS / EZS module replacement
- EIS / EZS cloning
- EIS / EZS programming
Applications
Models we see most often.
| Class | Models | Chassis | Years |
|---|---|---|---|
| C-Class | C200, C250, C300, C350 | W204 | approx. 2008–2014 |
| E-Class | E250, E300, E350, E550 | W207 / W212 | approx. 2010–2015 |
| B-Class | B200, B250 | W246 | approx. 2012–2015 |
| GLK | GLK250, GLK350 | X204 | approx. 2010–2015 |
| CLS-Class | — | W218 | up to approx. 2015 |
| A-Class | — | W176 | up to approx. 2015 |
Additional Mercedes-Benz models may be supported depending on the vehicle and module.
Before we quote
We verify the car before we price the job.
Coverage varies by model, year, EIS/EZS part number and immobilizer generation. VIN and module verification may be required before service.
Service is in person only — we do not offer mail-in service. Come to the shop at 737 Hamilton Rd Unit 2, London, or we'll come to the car.
Keys carry a 3-month warranty. Module repairs carry a 6-month warranty.
If the steering wheel is locked solid or the key won't turn at all, that's usually a module rather than the key — see Mercedes EIS/EZS and ESL/ELV repair, or ignition repair for worn mechanical cylinders. If every key is gone, the lost car keys page explains how that job runs, and the price list has the rest of the numbers.
FAQ
Mercedes key questions, answered straight.
My Mercedes key won't turn. Is it the key or the car?
Often it's neither exactly — on these cars the electronic ignition switch (EIS/EZS) is a common cause, and the electronic steering lock is another. You don't need to know what's wrong with your Mercedes. That's our job. Tell us the model and year — we'll take care of the rest.
Can you make a Mercedes key if I've lost all of them?
Yes, on supported generations — roughly 2003 to 2015. Outside that range, tell us the model and year and we'll confirm honestly whether it's a job we can do before you count on it.
What does a replacement Mercedes key cost?
Mercedes sits in the European tier: transponder keys start at $125 and smart or proximity keys at $145, with all keys lost from $145. Those are starting prices, not flat rates, and we match written estimates.
Can I mail my key or module to you?
No. Service is in person only — we do not offer mail-in service. Come to the shop at 737 Hamilton Rd Unit 2, London, or we come to the car.
Which Mercedes models do you see most often?
C-Class (W204, approx. 2008–2014), E-Class (W207 and W212, approx. 2010–2015), B-Class (W246), GLK (X204), CLS (W218) and A-Class (W176), up to about 2015. Other Mercedes-Benz models may be supported depending on the vehicle and module — coverage varies by model, year, EIS/EZS part number and immobilizer generation, so we verify the car before pricing the job.