Certified · 15+ Years ECU + Module Programming

Mercedes SAM Module Cloning — Front & Rear Signal Acquisition / Body Control Unit Bench Service

Random lighting, wiper, or crank faults after a flooded trunk on your Mercedes? Mail in your original SAM plus a part-number-matched donor and we clone the coding and configuration across on the bench — plug and play, immobilizer relationship preserved.

$350 flatFast TurnaroundFlat-rate return shipping
Text Before You Buy

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

Mercedes SAM Module Cloning — Front & Rear Signal Acquisition / Body Control Unit Bench Service

Mercedes Temic & Hella SAM units, front & rear — W203/W209 (Hella), W211/W219 (Temic), W204/W212 front & rear SAM, W220/W215/R230, W221/C216, W164/X164/W251, W166/X166, and the 2006-2013 Mercedes/Dodge/Freightliner Sprinter Temic SAM fuse box. Verified by VIN + module label before you ship.

How It Works

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

Mercedes SAM signal acquisition module opened on the bench with programming leads connected
1

Pay & Get Address

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

Software cloning coding and configuration data from a Mercedes Temic SAM to a donor unit
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. Your prepaid inbound label arrives by email — shipping to us costs you nothing.

Macro view of a corroded Mercedes SAM circuit board from a flooded rear fuse box
3

Get It Back Fast

Work typically 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

  • Your original SAM's coding, configuration, and stored data cloned onto the donor, where the original still responds
  • Donor part-number compatibility verified by VIN and module label before you ship
  • Component-protection relationship accounted for during the read where it applies
  • Bench read + verify of both units before anything is written
  • Bench power-up and communication test on a regulated supply before return
  • Clear install notes — including where on-car SCN / variant coding may still apply
  • Modules returned with tracking — return-shipping speed your choice at checkout

Compatibility

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

C-Class & CLK — Hella SAM

  • W203 C-Class (2001-2007) — Hella front SAM
  • W203 C-Class (2001-2007) — Hella rear SAM
  • S203 C-Class wagon, CL203 sport coupe — same Hella SAM family
  • W209 CLK coupe (2003-2009) — Hella front SAM
  • A209 CLK cabriolet (2004-2009) — Hella rear SAM
  • C55 AMG, CLK55 / CLK63 AMG — same Hella SAM family

E-Class & CLS — Temic SAM

  • W211 E-Class (2003-2009) — Temic front SAM
  • W211 E-Class (2003-2009) — Temic rear SAM
  • S211 E-Class wagon (2003-2009) — rear SAM in the cargo floor
  • W219 CLS (2005-2011) — rear SAM (shared W211/W219 unit)
  • E55 / E63 AMG (W211), CLS55 / CLS63 AMG (W219)

W204 / W212 generation — front & rear SAM

  • W204 C-Class (2008-2014) — front SAM
  • S204 wagon, C204 coupe (2008-2015) — front SAM
  • X204 GLK (2010-2015) — same W204 SAM family
  • W212 E-Class (2010-2016) — front SAM
  • W212 E-Class (2010-2016) — rear SAM
  • S212 E-Class wagon — rear SAM in the cargo floor
  • C207 / A207 E-Class coupe & cabriolet (2010-2017)

S-Class, CL & SL

  • W220 S-Class (1999-2006) — S430, S500, S600 front & rear SAM
  • W215 CL-Class (2000-2006) — CL500, CL55, CL600 SAM
  • R230 SL-Class (2003-2012) — SL500, SL550, SL55 SAM
  • W221 S-Class (2007-2013) — front SAM
  • C216 CL-Class (2007-2014) — front SAM (W221 family)

M-Class, GL, GLE & R-Class

  • W164 ML-Class (2006-2011) — ML350, ML500, ML63 AMG front SAM
  • W164 ML-Class (2006-2011) — rear SAM (cargo area)
  • X164 GL-Class (2007-2012) — GL450, GL550 front & rear SAM
  • W251 R-Class (2006-2013) — shares the W164 SAM family
  • W166 ML / GLE (2012-2019) — front SAM
  • X166 GL / GLS (2013-2019) — front SAM

Sprinter van — Temic SAM fuse box

  • 2006-2013 Mercedes-Benz Sprinter (W906) — Temic SAM fuse box
  • 2007-2009 Dodge Sprinter (W906) — Temic SAM fuse box
  • 2010-2013 Freightliner Sprinter — Temic SAM fuse box
  • Cargo, passenger, and cab-chassis variants

Suppliers & positions

  • Temic SAM variants
  • Hella SAM variants
  • Front (engine-bay / dash) fuse-box SAM
  • Rear (trunk / cargo-floor) fuse-box SAM
  • Donor must match the Mercedes part number on your label

Failure patterns we see

  • Water intrusion into a trunk / cargo-floor rear SAM
  • Corroded pins and internal traces from moisture
  • Random exterior / interior lighting faults
  • Wipers, turn signals, or crank enable dropping out
  • "SAM control unit" / control-module fault codes

Best for

  • Flooded rear SAM being replaced with a used donor
  • A used SAM installed but the car has faults or won't crank
  • A SAM that still responds but is failing — clone it before it dies
  • Avoiding a dealer-only new-SAM order plus coding bill

Will This Fix My Problem?

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

Fixes:

  • Rear SAM flooded in the trunk and throwing random lighting / wiper faults
  • Used donor SAM installed and the car has faults or won't crank
  • "SAM control unit" fault stored with no working replacement path
  • Turn signals, wipers, or exterior lights behaving erratically after moisture
  • A SAM that still powers up but is corroding — clone it before it fails completely
  • You need a second-hand SAM made plug-and-play for your exact car

Won't fix:

  • Does not include the donor SAM — you source a matching used unit (we verify the part number first)
  • Does not revive a SAM that is internally dead or unreadable — a dead original cannot be cloned (ask about our Advanced ECU / Module Recovery service for burnt, flooded, or no-communication units)
  • Does not repair corroded connectors, chafed harness, or the wiring feeding the SAM
  • Does not fix a fault whose real cause is a bad bulb, relay, motor, switch, or ground
  • Does not remove or bypass component protection / the immobilizer relationship
  • Does not perform on-car SCN / variant coding — this is a bench data clone
  • Does not bypass proof of ownership

Before you order

  • You diagnose, we service the module.

    We don't have your car and we don't diagnose it. Order once you or your mechanic have confirmed this module is the cause. If the work is completed and the car still has the same symptom because of another fault, the work is still done — a bench re-test under warranty is free.

  • A clone copies what is in your module.

    We transfer the data as we read it. If another shop or tool already worked on the module — an unfinished clone, a tune, a delete — that data can come across too. Tell us before you ship.

  • What "plug-and-play" means.

    No dealer programming should be needed when your original data is intact, the donor matches your module (same type, hardware and software family) and the rest of the car works. It isn't a promise that the car will start or run.

Flooded rear SAM? A plain used one won't drop in

On W164/X164/W211/W219 and their cousins the rear SAM sits low in the trunk or cargo floor, so a leaking seal, clogged drain, or blocked sunroof channel quietly floods it — and once it corrodes you get random lighting, wiper, and no-crank faults. A brand-new SAM has to be coded, and a plain used SAM still carries the donor car's configuration, so neither is a clean swap. This service clones your original's coding and data onto a part-number-matched donor so it behaves exactly like the unit that failed. Some SAMs carry component protection, which we account for during the read; a technician verifies your VIN and both module labels first, and proof of ownership is required for security-related work.

Shipping Instructions

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

Verify first: text or email us your VIN and clear photos of your original SAM label and the donor's label — a technician confirms the part numbers are a compatible match before you ship. Then send both units to PO Box 120241, Arlington TX 76012 if you ship USPS — or 1009 Oakwood Ln # 120241, Arlington TX 76012 if you ship UPS or FedEx (UPS and FedEx cannot deliver to a PO Box). We clone on the bench, test communication, and ship everything back via the return option you pick at checkout (Standard $29.95, UPS 2-Day $54.95, or UPS overnight $94.95).

What to include in your box

  • Your original SAM (front and/or rear, whichever failed — if it still powers up) AND the donor SAM
  • Year, make, model, and body code (e.g. 2008 Mercedes ML350 W164)
  • VIN of the vehicle
  • Mercedes part number off BOTH SAM labels (we pre-verify the match)
  • Which SAM it is — front (engine-bay/dash) or rear (trunk/cargo)
  • What is wrong now: water damage, random lighting faults, no crank, etc.
  • Proof of ownership (title, registration, or bill of sale)
  • 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

Your prepaid inbound label (already addressed) arrives by email the moment you order; the return label is bought when your module reaches the bench and ships on the speed you chose at checkout.

Need to perform this job remotely?

Get an Auto Module Lab Remote Programming Kit and have our technicians program supported vehicles from your shop — the car stays on your lift and nothing gets posted.

Buy the interface once — program with us anytime. Supported procedures vary by vehicle, module, OEM software and security requirements.

Frequently Asked

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

What is a SAM module and what does it do?
SAM stands for Signal Acquisition & Actuation Module (in German, Signalerfassungs- und Ansteuermodul). Mercedes uses front and rear SAM units built into the fuse boxes to read switch inputs and drive the lighting, turn signals, wipers, and power distribution. When a SAM fails you get random electrical faults and often a "SAM control unit" code. Supplied by Temic and Hella depending on the model.
Why can't I just plug in a used SAM from a scrapyard?
Two reasons. A brand-new SAM ships blank and has to be coded, and a plain used SAM still carries the donor car's coding and configuration, so it won't match your car. Cloning copies your original SAM's coding and data onto the used donor so it behaves like the unit that failed — plug and play for your VIN.
My rear SAM got wet in the trunk — is that common?
Very. On many Mercedes the rear SAM sits low in the trunk or cargo floor, so a leaking seal, clogged sunroof or body drain, or a blocked channel lets water pool right onto it. The corrosion that follows throws random lighting, wiper, and no-crank faults. As long as the original still powers up we can usually clone it out onto a clean donor before it dies completely.
Do you supply the donor SAM?
No — you source a used donor (eBay, salvage yard, parts recycler) and we verify compatibility before you buy or ship. Match the Mercedes part number on the label as closely as possible; send us photos of both labels plus your VIN and a technician confirms the pair will work.
My original SAM is completely dead — can you still clone it?
Only if it still powers up and responds. Cloning copies data OUT of your original, so a unit that is internally dead or unreadable cannot be cloned — there is nothing to read. If yours is that far gone, contact us with your VIN and symptoms and we'll tell you honestly whether a read is possible before you ship anything.
Is this on-car coding or a bench clone?
It is a bench data clone — we read your original and write its coding and configuration onto the donor. It is not on-car SCN or variant coding. On most SAM jobs the clone drops in without further coding, but where your specific variant differs a shop or dealer SCN/variant session may still apply at install, and we tell you up front if your job falls in that category.
Does the immobilizer or component protection stay intact?
Yes. Where a SAM carries component protection or an immobilizer relationship, cloning preserves it — this is not a delete or a security bypass. That is also why proof of ownership is required before any security-related work begins.
How much is it and how does the mail-in work?
It is $350 flat. After a technician verifies your VIN and both SAM part labels, you ship the units to Auto Module Lab in Arlington, TX. We clone on the bench, test communication, and ship everything back with tracking — return speed your choice at checkout (Standard $29.95, UPS 2-Day $54.95, or UPS overnight $94.95).

Related Services

Other bench services for the same brand or use case.

Where we serve Mercedes SAM Module Clone

Mail-in means nationwide — we accept modules from all 50 states and DC from our Arlington, Texas lab. See your state, metro, or specific vehicle:

Common year + make + model combos

Ready to ship?

$350 flat, fast turnaround. Pay now, get the shipping address by email, drop it in the mail. Your module is typically back on your bench within a week.

(817) 678-3252