Mercedes-Benz EIS EZS Repair Service W164 X164 W251 W216 W221 1649051500
Mercedes-Benz EIS EZS Repair Service W164 X164 W251 W216 W221 1649051500
Couldn't load pickup availability
How to Get Your Unit Repaired:
How to Get Your Unit Repaired:
Purchase our repair service, verify that the symptoms or fault codes align with the issues you're experiencing, and then ship your part to us. If you're unsure whether this repair service will resolve your issue, please contact us, and we'll guide you through the process.
This repair service covers:
This repair service covers:
Each part undergoes thorough testing on our bench both before and after repair to ensure optimal functionality. If the unit is functional, shows no issues during testing, or is deemed non-repairable, a bench fee will apply. Some exceptions may apply
Turnaround:
Turnaround:
2-3 business days. Exceptions may apply; more complex repairs may take longer, please contact us for more details.
Warranty:
Warranty:
Our 6-month warranty covers only the specific repair we performed.
Programming & Coding:
Programming & Coding:
Not required. Simply plug and drive once the repair is complete.
Electronic Ignition Switch (EIS or EZS) Repair Service
We support all A164, A216, and A221 part numbers, found in the following models:
W164 Mercedes ML-Class** (ML320, ML350, ML550, ML63 AMG)
X164 GL-Class** (GL350, GL450, GL550, GL63 AMG)
W251 R-Class** (R320 CDI, R350, R550, R63 AMG)
W216 CL-Class** (CL550, CL600, CL63 AMG, CL65 AMG)
W221 S-Class** (S350, S450, S550, S600, S63 AMG, S65 AMG)
Common part numbers:
2165450108 1645451408 , 1645451608 , 1645451908 , 1649050200 , 1649051600 , 1649051500 , 1649051500 , 2169050000 , 2165450108 , 2215450508, 2215451208
A1645451808 1645451808 A2169050000 1649050100
Common Electronic Ignition Switch (EIS/EZS) failure symptoms on Mercedes vehicles include:
1. No Ignition Power (Terminal 15 Issue)**: The engine may fail to start or turn over, often due to a lack of ignition power reaching the necessary circuits.
2. No Communication with Vehicle Modules**: The EIS may fail to communicate with the car’s other systems, resulting in error messages or the inability to start the car, as the key and EIS cannot properly exchange information.
3. Failure to Recognize the Key**: If the EIS fails to recognize the key, either because of a malfunction in the key recognition system or an issue with the EIS itself, the car will not start. You may hear a "no key" or "key not detected" warning.
4. No IR/Coil Activity**: The Infrared (IR) or coil signal used to read the key’s electronic information might not be working. This can prevent the car from detecting the key and, as a result, prevent starting.
5. Immobilizer Activation**: A malfunctioning EIS can cause the immobilizer to stay active, even with the correct key inserted, which prevents the engine from starting.
6. Intermittent or Inconsistent Starting**: The vehicle may start intermittently or not start at all, even though the key appears to be working properly. This could indicate a problem with the EIS or key programming.
7. Dashboard Warning Lights**: A faulty EIS may cause warning lights on the dashboard, such as the “EIS error” or "Immobilizer" light, or the car may not start and display a “Start Error” message.
8. Key Won’t Turn in the Ignition**: In some cases, the key may physically get stuck or fail to turn in the ignition, indicating a mechanical or electrical failure in the EIS.
2008-2009 Mercedes GL 320
2010-2012 Mercedes GL 350
2008-2012 Mercedes GL 450
2008-2012 Mercedes GL 550
2008-2009 Mercedes ML 320
2008-2011 Mercedes ML350
2010-2011 Mercedes ML 450
2008-2011 Mercedes ML 550
2008-2011 Mercedes ML63 AMG
2008-2009 Mercedes R 320
2008-2012 Mercedes R 350
