Mercedes W210 ME2.8 ECU Cloning& Stage 2 Remap by Post
This Mercedes-Benz W210 E-Class case study documents a Bosch ME2.8 petrol ECU bench-cloning and Stage 2 remapping job by post. The two control units were examined in our Stourbridge workshop, with the engine-management ECU opened for controlled programming access.
Both ECU labels identify Mercedes-Benz part A112 153 26 79 and Bosch reference 0 261 207 781. Exact hardware and software revisions matter when assessing original-to-donor compatibility. The Stage 2 calibration was carried out for the supplied tuning requirements; no independently verified power figures or road-test results are claimed here.

Mercedes ME2.8 ECU job summary
A1121532679 / 0261207781
Bench ECU cloning & Stage 2 remap
UK by-post • Stourbridge workshop
Mercedes W210 Bosch ME2.8 ECU bench programming
Four original workshop photographs document the physical ME2.8 ECU identification, opened engine-control board, protected bench connection and the original/replacement modules. Use the images to see the actual ECU family and workshop setup.

ME2.8 bench connection and programming access
Opened Bosch engine ECU with a protected programming fixture, circuit-board access and wiring for controlled bench work. The test setup enables work without requiring the complete vehicle on site.

Bosch 0261207781 and Mercedes A1121532679
ECU identification from the module label. The exact Bosch reference, Mercedes part number and revision should be confirmed before accepting a donor for cloning.

Original and donor Mercedes ECU compatibility
The two units are presented together to show their identification labels. Similar-looking ME2.8 controllers are not automatically interchangeable; part numbers, hardware revisions and software data need checking.
Original-to-donor ECU data transfer by post
Mercedes ME2.8 ECU cloning is relevant when a compatible replacement control unit needs the supported vehicle-specific data from an original unit. A typical job involves identification, original-data backup where readable, compatibility assessment, transfer/programming and bench communication checks. The actual data areas and methods depend on the ECU software and hardware version.
SG-Tronic Motorsport accepts suitable original and donor ECU pairs for UK ECU cloning by post after checking the part-number photographs. Customers in Birmingham, Dudley and Stourbridge can enquire about workshop ECU cloning and programming, while remote customers can use our module-postage guide.
Mercedes-Benz Stage 2 remapping on a bench ECU
In this case, a Stage 2 ECU remap formed part of the requested bench service alongside ME2.8 cloning. Stage 2 is not a universal map file: calibration requirements depend on the M112 petrol engine application, ECU software, actual vehicle configuration, emissions requirements and any declared supporting hardware.
Bench programming confirms the intended file can be handled on the supported module, but it does not by itself prove on-vehicle power output, emissions compliance or roadworthiness. Appropriate vehicle diagnostics and verification after installation remain important. View our ECU remapping service for assessment and compatibility information.
Mercedes 722.6 TCM programming and adaptation
Many automatic W210 models use the Mercedes-Benz 722.6 five-speed automatic transmission. Depending on model and production year, its electronic gearbox controller may belong to the EGS51 or EGS52 family. These transmission controllers are separate from the Bosch ME2.8 engine ECU shown in this case study.
TCM cloning and programming
Original-to-donor transmission control module data transfer or replacement-module programming where the hardware and software support it.
EGS coding and setup
Vehicle-specific controller coding, identification and integration checks following a compatible transmission-module replacement.
Gearbox adaptation
Diagnostic review of learned shift values and supported adaptation or relearn procedures after justified gearbox or controller work.
Calibration and testing
Supported gearbox calibration procedures, transmission fault-code checks, live-data review and follow-up diagnostics when required.
These are related SGTM services, not additional work claimed for the pictured ME2.8 engine ECU. We assess availability using the VIN, gearbox type, original and donor TCM labels, current fault codes and repair history.
Send the ECU numbers before posting your modules
For Mercedes W210 ME2.8 ECU cloning, replacement ECU programming or postal remapping, send the vehicle model, year, VIN/engine code, fault description, original and donor ECU label photographs, and your tuning requirements. We will confirm compatibility and a quotation before you send anything.
