Auto Module Lab logoAUTO MODULELAB
Certified · 15+ Years ECU + Module Programming

Mercedes EIS/EZS Cloning Service (Pre-2014)

Failed Mercedes EIS leaving you with a car that won't start? We clone it to a replacement EIS — your existing keys keep working, no re-keying the car.

$250 flat24-Hour TurnaroundFlat-rate return shipping

Sending several modules? Add them all — one box, one return-shipping charge.

Text Before You Buy

Pre-2014 Mercedes with EIS/EZS (W204, W212, W221, W164, W166, W251, W639)

How It Works

Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.

Mercedes EIS bench cloning
1

Pay & Get Address

Click "Order Now", pay securely via Stripe. We email shipping address + instructions within minutes.

Mercedes module dump in progress
2

Ship Your Module

Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Customer pays shipping to us.

Mercedes interior with EIS in dash
3

Receive in 1-2 Days

Work completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.

What You Get

  • Donor EIS cloned to your VIN and original data
  • All existing keys continue to work in the cloned unit
  • No need to reprogram keys or visit dealer
  • 24-hour turnaround after both EIS units arrive
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • 6-month warranty on cloning work

Compatibility

Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.

Chassis supported

W204 C-ClassW207 E-Class CoupeW212 E-ClassW221 S-ClassW164 MLW166 ML/GLE earlyW251 R-ClassW639 Vito/VianoW463 G-Wagen

EIS versions

NEC v51/v57Motorola pre-2009Renesas 2009-2014

Service scenarios

Original EIS dying — clone to a known-good donorKeep all existing keys workingAvoid all-keys-lost reprogramming cost

Will This Fix My Problem?

Honest answer: here's exactly what this service fixes — and what it doesn't.

Fixes:

  • ✓Original EIS intermittently fails — car will not start
  • ✓Replacement EIS needed but keys must keep working
  • ✓Avoid the cost + downtime of dealer all-keys-lost programming
  • ✓Donor EIS already sourced — just need it cloned

Won't fix:

  • ✗2015+ Mercedes with FBS4 system (different cloning path)
  • ✗EIS is unreadable / completely dead (no clone source available — see our EIS key replacement service instead)
  • ✗Mechanical ignition lock failure

Shipping Instructions

These details are also emailed to you the moment your payment clears.

You pay shipping to us. Return shipping is selected and paid at checkout — Standard $24.95 (3–5 days), UPS 2-Day $54.95, or UPS overnight $94.95. Ship BOTH the original EIS (clone source) AND the donor EIS (target) in the same padded box.

What to include in your box

  • Original Mercedes EIS (clone source)
  • Donor Mercedes EIS — same part number / variant (clone target)
  • A printed copy of your order confirmation email
  • VIN of the Mercedes
  • Your name, return address, and phone number

Ship to

Auto Module Lab

If shipping USPS

PO Box 120241
Arlington, TX 76012

If shipping UPS or FedEx

1009 Oakwood Ln # 120241
Arlington, TX 76012

Both shipping labels — to the lab and back to you — are purchased the moment you order. Your prepaid inbound label (already addressed) arrives by email; the return ships on the speed you chose at checkout.

Frequently Asked

Still have a question? Text us — replies in minutes.

Will my keys still work after cloning?
Yes — that's the whole point of cloning vs key replacement. The donor EIS is written with your original's data so all existing keys remain valid in the new unit.
Where do I get a donor EIS?
eBay, Car-Part.com, salvage yards. The donor must be the same part number as your original (often same chassis + same engine). Email us your part number before sourcing and we will confirm compatibility.
What if my original EIS is completely dead?
If we cannot read the original, we can't clone. In that case our EIS Key Replacement service ($150) is the right fit — we program a fresh key directly to a donor EIS without needing the original.
Will this work on a 2015 W205?
No. 2015+ uses Mercedes FBS4 which requires a different process. Contact us — we handle FBS4 on a case-by-case basis.
How long is turnaround?
24 hours from receipt of both EIS units. Most clones ship back the next business day with tracking.

Related Services

Other bench services for the same brand or use case.

Mercedes Key Replacement via EIS
Mercedes

Mercedes Key Replacement via EIS

Lost your only Mercedes key? Ship us your EIS — we program a fresh working key directly on the bench.

$150View details →
Mercedes ELV Emulator Programming
Mercedes

Mercedes ELV Emulator Programming

ELV (steering lock) failed? Ship your EIS — we program and supply a matched ELV emulator.

$350View details →
Mercedes W164/X164/W251 EIS Repair
Mercedes

Mercedes W164/X164/W251 EIS Repair

ML/GL/R key won't turn, or the EIS is dead? We repair (not clone) the original EIS on Mercedes 2008-2012 DAS3 infrared systems — your keys keep working.

$399View details →

Fault codes this service fixes

Seeing one of these on your scan tool? Here's what it means and how the bench fix clears it.

U0001

High Speed CAN Communication Bus Error

EIS not reading key

Mercedes EIS fails to authenticate inserted key

Crank-no-start

Engine cranks normally but won't start

P164B

Engine Stop Detected — Immobilizer Activated

Mercedes W220 EIS failure

W220 S-Class EIS authentication failure

Mercedes W211 EIS failure

W211 E-Class EIS authentication failure

Mercedes W164 ML EIS failure

W164 M-Class EIS authentication failure

Mercedes W204 ECU comm fault

W204 C-Class ECU not communicating

Mercedes EIS-cluster mismatch

EIS and cluster report different VIN/odometer

U0073

Control module communication bus A off

P1631

Immobilizer incorrect challenge response

P1633

Immobilizer power supply fault

Comm fault after battery disconnect

Multiple module faults after a flat battery

Fire-damaged module recovery

Module from a partial vehicle fire

Mercedes C63 AMG EIS

Mercedes C63 AMG (W204) EIS failure

Faults after aftermarket alarm

IMMO faults after aftermarket alarm install

Guides & tools for this fix

Deeper symptom walkthroughs and the programming tools behind this service.

Tool

Abrites AVDI

Tool

Orange5 Pro

Where we serve Mercedes EIS Cloning (Pre-2014)

Mail-in means nationwide. See your state, metro, or specific vehicle:

All 51 US states + DC

ALAKAZARCACOCTDEFLGAHIIDILINIAKSKYLAMEMDMAMIMNMSMOMTNENVNHNJNMNYNCNDOHOKORPARISCSDTNTXUTVTVAWAWVWIWYDC

Top 50 metros

New York CityLos AngelesChicagoDallas-Fort WorthHoustonWashington DCMiamiPhiladelphiaAtlantaPhoenixBostonSan FranciscoRiverside-San BernardinoDetroitSeattleMinneapolis-St. PaulSan DiegoTampaDenverBaltimoreSt. LouisOrlandoCharlotteSan AntonioPortlandSacramentoPittsburghLas VegasAustinCincinnatiKansas CityColumbusIndianapolisClevelandSan JoseNashvilleVirginia BeachProvidenceJacksonvilleMilwaukeeOklahoma CityRaleighMemphisRichmondLouisvilleNew OrleansSalt Lake CityHartfordBuffaloBirmingham

Common year + make + model combos

2008 Mercedes C3002011 Mercedes C3002009 Mercedes E3502007 Mercedes S5502010 Mercedes GLK3502009 Mercedes ML3502008 Mercedes CLK3502013 Mercedes E3502010 Mercedes C63 AMG2012 Mercedes SprinterAll vehicles →

Ready to ship?

Pay now, get the shipping address by email, drop it in the mail. Your module is back on your bench within a week.

(817) 678-3252

Guides from the Lab

Deep-dive technical guides from our bench that cover this service.

Mercedes Module Cloning: What Can and Cannot Be Cloned

Which Mercedes modules clone on the bench and which cannot: EIS/EZS, ME9.7, SIM271, the 722.9 plate, FBS4 DSM/ISM, and the ESL.

Read the guide

Electronic Steering Lock Failure by Brand: ESL and ELV

How an electronic steering lock fails, and why the fix differs by brand — Mercedes, VW/Audi, BMW — plus why a used ESL is never plug-and-play.

Read the guide

PIN, CS, ISN and SKIM Codes: How Module Security Access Really Works

PIN, CS, ISN and SKIM secrets explained — the seed-key handshake that gates module writes, lockout timers, checksums, and when a bench read is the only path.

Read the guide