Description and application
The ECU module with part numbers A6421501600 and 0281015305 is a factory engine control unit used in Mercedes-Benz vehicles with V6 3.0 CDI diesel engines. The unit is prepared in VIRGIN mode, meaning it does not contain any data from a previous vehicle and must be programmed to the specific car.
The ECU is compatible with models such as:
- Mercedes E-Class (W211, W212) – 3.0 CDI
- Mercedes ML (W164) – 3.0 CDI
- Mercedes GL (X164) – 3.0 CDI
- Mercedes R-Class (W251) – 3.0 CDI
- Mercedes Sprinter – selected 3.0 CDI versions
To code the ECU, it is necessary to use Star Diagnosis or another compatible diagnostic device supporting Mercedes-Benz systems. After correct programming, the ECU works like a new original module.
Each ECU has been tested for communication and is ready for vehicle installation.
Frequently Asked Questions (Q&A) – A6421501600 / 0281015305
Question: Which models are compatible with ECU A6421501600 / 0281015305?
Answer: It fits Mercedes-Benz models with the 3.0 CDI V6 engine, such as E-Class, ML, GL, R-Class, and Sprinter.
Question: Is the ECU ready to use immediately after installation?
Answer: No, in VIRGIN mode it requires full programming using diagnostic tools.
Question: What equipment do I need to code this ECU?
Answer: You can use Star Diagnosis or other tools compatible with Mercedes-Benz electronics.
Question: Is the unit tested and 100% functional?
Answer: Yes, each ECU is communication-tested and prepared for installation.