2010 Mercedes-Benz C 180 Mercedes Benz Replacement Key - Mail In Replacement Key Testing
SKU: KEY MB TEST
TestingRecommended
- Comprehensive testing and diagnostic report on key.
- Assessment for repair or replacement.
- If no fault is found, we will return your existing key.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- Return shipping is included in the testing price.
Our Mercedes‑Benz key replacement service securely cuts and programs key fobs to your vehicle’s immobilizer so you regain reliable locking, unlocking, and starting. We can also deactivate missing keys for security. We offer a fast mail‑in module option that avoids towing and dealer delays.
Common reasons you may need a replacement key:
- Lost, stolen, or physically damaged key/fob.
- “Key Not Detected/Key not recognized” messages or the vehicle not recognizing the fob for KEYLESS‑GO starting.
- Remote buttons don’t work (or work only at very short range) even after a fresh battery.
- Worn/bent blade or broken flip mechanism on older designs, making the key unreliable or unusable.
TestingRecommended
- Comprehensive testing and diagnostic report on key.
- Assessment for repair or replacement.
- If no fault is found, we will return your existing key.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- Return shipping is included in the testing price.
Replacement
- Use if you have 1 working key.
- Replacement key programmed and cut to work in your specific vehicle’s locks.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- 100% plug-and-play solution, no other coding is required.
- A replacement key is included in the price.
- Return shipping is included in the price.
All keys lost
- Use this service if all keys are lost
- Replacement key programmed and cut to work in your specific vehicle’s locks.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- 100% plug-and-play solution, no other coding is required.
- A replacement key is included in the price.
- Return shipping is included in the price.
TestingRecommended
- Comprehensive testing and diagnostic report on key.
- Assessment for repair or replacement.
- If no fault is found, we will return your existing key.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- Return shipping is included in the testing price.
Replacement
- Use if you have 1 working key.
- Replacement key programmed and cut to work in your specific vehicle’s locks.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- 100% plug-and-play solution, no other coding is required.
- A replacement key is included in the price.
- Return shipping is included in the price.
All keys lost
- Use this service if all keys are lost
- Replacement key programmed and cut to work in your specific vehicle’s locks.
- Keys are tested in live vehicles to ensure the key is fully-functional before return.
- 100% plug-and-play solution, no other coding is required.
- A replacement key is included in the price.
- Return shipping is included in the price.
How to get a mail in replacement Mercedes Benz Key
The ECU Pro offers an affordable mail-in replacement key repair service. Our service is available if all keys are lost or if you require 1 replacement key.
Send your current EIS, and a working KEY. If all keys are lost, you only need to send the EIS
Our mail-in service is 100% plug-and-play and doesn't require any additional coding.
FAQs
Do you repair Mercedes key fobs?
We’ll test and, when feasible, repair basic issues (battery/contacts/case). If the transponder or RF module has failed,replacementis usually the reliable fix—consistent with guidance that modern fobs are complex and often not economical to repair.
Will you deactivate my lost Mercedes key?
Yes—on most platforms we can deauthorize missing keys while adding your replacement. Dealers also follow this practice during synchronization for security
Mercedes key replacement near me — do you travel or is there a mail‑in option?
We serve customers via a convenient mail‑in repair service. Simply remove the parts from your vehicle and mail it to us to have us program a replacement key fob for your Mercedes Vehicle
Can you replace a lost Mercedes key the same day?
Yes, once we receive your key, we do offer an expedited key replacement service with a 1-2 business day turn around.
Spare Mercedes key price vs. All Keys Lost — what’s the difference?
Spare / additional key: $349 when you already have a working key.
All Keys Lost: $399 covers added work to read immobilizer data and program from scratch (and disable lost keys where supported).
What’s included in Key Testing for an MB key fob?
- Battery check and load test
- RF/IR output test (lock/unlock transmit)
- Transponder handshake check (immobilizer response)
- Blade wear & cut verification
- Basic fault triage for common EIS/EZS issues
If your key passes, we’ll advise next steps on vehicle‑side faults (e.g., ignition switch/EIS).
MB Key Fob services & Prices?
MB Key Testing — $99 We test the fob battery, RF signal output, infrared function (where applicable), transponder/immobilizer response, and mechanical blade wear. If the key tests good, we can advise on EIS/EZS or vehicle‑side issues.
Replacement Key Service (spare/additional key) — $349 Cut + program a working spare mb key fob / smart key.
All Keys Lost Replacement — $399 End‑to‑end solution when no working key is available. On supported Mercedes models we can complete this by module mail‑in so there’s no towing.
How much does it cost to replace a Mercedes key fob?
If you have a spare key available, a replacement key for a Mercedes can cost $349. If all keys are lost, a full replacement and recoding can cost up to $399.
What do I need to send in order to test my key?
To have your key tested and potentially replaced, you will need to send the KEY (spare or primary) and the EIS system. For some of the older Mercedes Benz models we would also need the TEMIC/SKREEM as well.
What do I do if I lost all my keys?
You will need to send your vehicle’s EIS to have a new set of keys programmed. If you need the key cut as well, you will need to send us the locking barrel as well.
Do I have to tow my car to the dealer if I lost my Mercedes Benz Key?
We offer a mail‑in key replacement service that does not require any towing. Simply remove the EIS, mail it to us and we will code your key for you.
More services for your 2010 Mercedes-Benz C 180
For ME9.7 EIS ECU
ECU Service for 2010 Mercedes-Benz C 180
- No ECU function
- No Communication with the ECU
- Cylinder misfire
- No communication with certain sensors
EIS Service for 2010 Mercedes-Benz C 180
- Difficulty in starting the vehicle
- The engine fails to turn over despite the key turning in the ignition
- Intermittent issues with starting the vehicle
- The vehicle does not recognize the key
