Mercedes-Benz EIS / EZS Ignition Module Cloning Service

Mercedes-Benz EIS / EZS Ignition Module Cloning Service

Have you replaced the Electronic Ignition Switch (EIS/EZS) on your Mercedes-Benz, only to find the vehicle won't crank or accept the key? This is because the EIS is a primary security gateway, storing the vehicle’s VIN, mileage, central gateway configuration, and immobilizer data.

When an EIS fails (common symptoms include keys intermittently not turning, steering lock failing to release, or total loss of communication), a standard used unit cannot simply be swapped over.

Our professional mail-in cloning service extracts the complete software and security architecture from your original, faulty ignition switch and transfers it directly to a healthy donor unit. This results in a 100% plug-and-play solution.

Benefits of our Service:

• Plug & Play: No diagnostic pairing, dealer programming, or online SCN coding required.
• Key Retention: Your original working keys will function perfectly with the cloned donor unit.
• Data Integrity: Original vehicle mileage, VIN, and personalization data are completely preserved.

Supported Mercedes-Benz Models & Chassis Types

We support an extensive range of modules across these major Mercedes platforms:

• A-Class / B-Class / R-Class: W169
• C-Class / CLK: W203, W209
• E-Class / CLS: W211
• S-Class / CL: W220, W215
• SL-Class: W230
• M-Class / GL / R-Class: W164
• G-Class: W463
• Vito / Viano / Sprinter: W639, 906 / NCV3

Note: For newer chassis types not listed above (such as W204, W212, W221, W166, W205, W222), please contact us directly with your VIN and module part number to check current programming availability.

How It Works

1. Purchase the Service: Place your order through this listing.
2. Pack Your Hardware: Clearly mark or label your parts as ORIGINAL and DONOR. If you do not have a donor unit, please contact us prior to purchasing so we can source an identical part number for you.
3. Send to Us: Package your original EIS, donor EIS, and at least one working key securely. Send them to our workshop via a tracked and insured shipping method. (Shipping address and instructions will be provided on your order confirmation email).
4. Bench Testing & Cloning: Once received, we interface directly with the modules to pull a full data backup from the original unit and mirror it to the donor.
5. Return Shipping: We ship both units and your keys back to you using a fully tracked, next-day delivery service.

Turnaround Time

We aim to clone and dispatch your modules within 24–48 hours of receiving them at our workshop.

Important Information

• This service requires that the original EIS is still capable of communicating on the bench to allow a successful data read. If your original module has suffered catastrophic physical or electrical damage, please contact us first to discuss data recovery options.
• This service is a data cloning service to fix hardware faults. It will not fix issues caused by corrupted data elsewhere in the vehicle, broken steering locks (ELV/ESL), or defective key fobs.