Every listing in this shop is a send-in postal service. Once ordered, we email you packing instructions — the private workshop send-in address is shown on your order page and in your confirmation email — only to paying customers. Most jobs are completed and returned same-day on arrival, fully tracked.
Prefer we come to you or drop the vehicle in? Request a quote — mobile service is available across the West Midlands with a call-out fee based on your postcode.
Call-out fees are guidance only — confirm your postcode when requesting mobile attendance. Postal send-in has no call-out fee.
Supported Models
- A-Class W169 · B-Class W245
- C-Class W202 / W203 / W204
- E-Class W210 / W211 / W212 / W207
- S-Class W220 / W221 · CL-Class W215 / W216
- ML W164 · GL X164 · GLK X204 · R-Class W251
- CLK W208 / W209 · CLS W219
- G-Class W463 · V-Class / Vito W639 · Sprinter
- SL R230 · SLK R171
- EIS part numbers include A164 905 15 00, A203 545 01 08 / 05 08 / 06 08, A210 545 00 08 / 10 08, A215 545 00 08 / 08 08, A220 545 03 08 / 07 08 / 08 08 / 09 08, A230 545 07 08 and many more
Vehicle Compatibility
| Make | Model | Year |
|---|---|---|
| Mercedes-Benz | Mercedes A-Class / B-Class (W169 / W245) | 2004–2012 |
| Mercedes-Benz | Mercedes C-Class (W202 / W203 / W204) | 2000–2013 |
| Mercedes-Benz | Mercedes E-Class (W210 / W211 / W212 / W207) | 2000–2013 |
| Mercedes-Benz | Mercedes S-Class / CL (W220 / W221 / W215 / W216) | 2000–2013 |
| Mercedes-Benz | Mercedes ML / GL / GLK / R (W164 / X164 / X204 / W251) | 2005–2013 |
| Mercedes-Benz | Mercedes Vito / Viano / Sprinter (W639 / W906) | 2003–2013 |
| Mercedes-Benz | Mercedes SL / SLK (R230 / R171) | 2001–2013 |
Key Features
- Original EIS/EZS data cloned onto your matching donor unit — plug-and-play on refit.
- Existing keys keep working: no dealer programming and no new keys required.
- Recovers corrupted memory and crashed processors that Xentry / DAS cannot re-flash.
- Bench-tested with your key before dispatch.
- Standard tracked return delivery included — priority next-day available.
- No fix, no fee: if the data cannot be recovered you pay nothing.
Service Overview
- Postal service as standard: order, post your original and donor EIS with one key, and we clone, test and return the unit on tracked delivery. Mobile attendance across the West Midlands is available with a postcode-based call-out fee.
- If the EIS becomes faulty the key may stop turning or the car will not start, and the module locks its ignition function as a security measure. Jump-starting with the key inserted, voltage spikes and low battery voltage are the usual causes, and they corrupt the internal memory or crash the processor. Once that happens the unit cannot be re-flashed with Mercedes diagnostic equipment (Xentry, Star, DAS) — the dealer answer is full replacement plus programming. Cloning avoids all of that.
- Older EIS units using the Motorola HC08 processor (maskset 4J74Y) are the most common failures: intermittent key recognition or a total processor crash, much like a frozen computer. Our cloning process restores full function and key synchronisation.
- Standard keys only. We do not program Keyless-Go, and Keyless-Go cannot be retro-fitted to a car that did not leave the factory with it.
More Information
- Service
- EIS / EZS repair, clone & programming
- Years Covered
- 2000–2013 (FBS3)
- Turnaround
- Same-day on arrival where possible
- Warranty
- 90 days workmanship
- Workshop
- Wolverhampton, West Midlands
- Product Code
- MCC-MB-EIS-CLONE
Why Choose MCC
- Specialist bench-side equipment
- Wolverhampton & West Midlands workshop
- Fast turnaround — same-day on arrival where possible
- Fixed transparent pricing — no VAT surprises
- UK-wide postal service — insured return delivery
Requirements
- Your original EIS/EZS module, removed from the vehicle.
- A matching donor EIS/EZS with the same part number (used or new) — mark them "Old" and "Donor".
- One key from the vehicle so we can bench-test the cloned unit.
- Your order number written on or printed inside the package.
- Vehicle registration or VIN so we can confirm the part number and system type.
What You Get
- Your original EIS/EZS data cloned onto the donor unit.
- Cloned unit bench-tested with your key before dispatch.
- Both modules returned — original and cloned.
- Written job report and refit notes.
- Standard insured tracked return delivery (priority upgrade optional).
- 90-day workmanship warranty on the cloned unit.
Frequently Asked Questions
What are the common EIS / EZS failure symptoms?
Key will not turn at all; key turns but no start; no dash or cluster response; "Remove Key" or "Key Not Recognised" messages; no crank with a good battery; intermittent key recognition; remote locks the car but the ignition will not engage; steering lock not releasing; gear selector stuck in Park; radio and windows live but no start; multiple CAN faults stored for EIS/ESL/ECM.
Do I need a donor EIS?
Yes — a matching donor unit with the same part number, used or new. We clone your original data onto it so the car sees the same module.
Do I have to program anything after fitting?
No. The cloned unit is plug-and-play — your keys and immobiliser data stay synchronised. Refit and start.
What if you cannot recover my data?
We return your parts and refund in full. No fix, no fee.
Can you clone a water-damaged EIS?
Often yes — data can be extracted from partially damaged units. If recovery is not possible you are refunded.
How long does the whole process take?
Cloning is usually completed the day your package arrives. Allow around 3–6 days door to door on standard tracked delivery, or next-day return with the priority option.
Does this work with Keyless-Go?
This listing covers standard FBS3 keys only. We do not offer Keyless-Go programming.
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Send your VIN or registration and we'll confirm the correct system, part and service before you order.