This service provides complete cloning, repair, synchronization, and recovery for the Bosch ME9.7 engine control unit used in a wide range of Mercedes-Benz vehicles. ME9.7 is one of the most failure-prone ECUs in the Mercedes lineup and one of the most in-demand modules for repair.

The ME9.7 ECU controls:

• Fuel injection

• Ignition timing

• Throttle control

• Variable valve timing (VVT)

• Emissions systems

• Immobilizer synchronization (DAS/ESL/EIS)

• Communication with TCM, ESL/ELV, SAM, and central gateway

Common ME9.7 issues include:

• No communication (ECU completely dead)

• No crank / no start

• Corrupted EEPROM or flash

• Persistent rich/lean conditions

• Failed programming attempts

• Water intrusion / overheating damage

• Lost immobilizer sync

• Hard faults that return after clearing

Using professional BDM-style bench programming tools, we offer:

✔ 1. Full ECU Cloning

We transfer ALL critical data from your original ECU to your replacement:

• EEPROM

• FLASH

• VIN

• Immobilizer/Drive Authorization (DAS)

• Software configuration

• Adaptations (where supported)

✔ 2. ME9.7 Corruption Repair

We repair ECUs with:

• Corrupted EEPROM

• Bad flash sectors

• Failed programming attempts

• No-communication faults

✔ 3. Plug-and-Play Preparation

Your replacement ME9.7 ECU is returned fully synchronized and ready to install —
no dealer coding required.

⭐ SUPPORTED MERCEDES-BENZ MODELS (ME9.7)

ME9.7 is used on M272 and M273 engines across many Mercedes models:

C-Class (W203 / W204)

• C230

• C280

• C300

• C350

E-Class (W211 / W212 early)

• E280

• E300

• E350

CLS-Class (W219)

• CLS350

• CLS500 / early 550

S-Class (W221 early models)

• S350

• S450

• S500 / S550

SLK-Class (R171 / R172 early)

• SLK280

• SLK300

• SLK350

SL-Class (R230 facelift)

• SL350

• SL500 / SL550 (M273 versions)

ML / GL / R-Class (W164 / X164 / W251)

• ML350

• ML500

• GL450

• R350

• R500

Other Variants

• European M272/M273 models

• Some Chrysler cross-platform engines

If your ECU label shows ME9.7, this listing applies.

WHAT YOU NEED TO SEND

• Original ME9.7 ECU

• Replacement ECU (new/used)

• Note including:

  • Name

  • Phone number

  • Return address

  • Vehicle year/make/model

WHAT'S INCLUDED

• EEPROM + flash cloning

• DAS/immobilizer sync

• VIN transfer

• Software/coding transfer

• Corruption repair

• Bench communication test

• Final plug-and-play validation

TURNAROUND TIME

• 1–2 business days

• Same-day rush available