A6421506179 0281012416 – Mercedes 3.0 CDI OM642 CR4.12 VIRGIN Engine ECU
Original engine ECU A6421506179 manufactured by Bosch 0281012416 designed for Mercedes-Benz vehicles equipped with the 3.0 CDI V6 OM642 engine. The CR4.12 ECU module has been prepared in VIRGIN condition, meaning previous vehicle data has been erased and the unit is ready for new programming and adaptation.
The ECU is supplied in VIRGIN condition and requires programming and adaptation to the vehicle using Mercedes Star Diagnosis / Xentry. After installation it is necessary to perform coding procedures and immobilizer synchronization with the vehicle.
VIRGIN ECU Programming
After installation of ECU A6421506179 VIRGIN, adaptation or online programming is required using:
- Mercedes Star Diagnosis,
- Xentry Diagnosis,
- original Mercedes-Benz diagnostic equipment.
The process includes assigning the ECU to the vehicle, immobilizer synchronization and vehicle equipment coding.
Part Numbers
- Mercedes: A6421506179
- Bosch: 0281012416
- ECU System: CR4.12
Application – A6421506179 / 0281012416 ECU
This engine ECU is used in selected Mercedes-Benz models equipped with the 3.0 CDI OM642 engine:
- Mercedes E-Class W211 / S211 E280 CDI / E320 CDI
- Mercedes CLS W219 CLS 320 CDI
- Mercedes ML W164 ML280 CDI / ML320 CDI
- Mercedes GL X164 GL320 CDI
- Mercedes R-Class W251 R320 CDI
- Mercedes Sprinter 3.0 CDI V6
- Mercedes Viano / Vito 3.0 CDI
Compatibility should always be confirmed using part numbers A6421506179 and 0281012416.
Engine Codes
- OM642.920
- OM642.940
- OM642.950
- OM642 V6 3.0 CDI
Typical Symptoms of Faulty Mercedes OM642 ECU
- engine will not start,
- no communication with ECU,
- injector control faults,
- Common Rail fuel pressure problems,
- vehicle stalls while driving,
- turbocharger control faults,
- random sensor errors despite correct wiring.
FAQ – Mercedes Engine ECU A6421506179 0281012416 VIRGIN
Does ECU A6421506179 fit Mercedes W211 3.0 CDI OM642?
Yes, engine ECU A6421506179 Bosch 0281012416 was used in selected Mercedes E-Class W211 and S211 models equipped with the 3.0 CDI OM642 engine. Always compare part numbers with the original ECU.
Does ECU 0281012416 VIRGIN require coding after installation?
Yes. The VIRGIN version requires programming and adaptation using Star Diagnosis or Xentry.
What are the symptoms of a faulty Mercedes OM642 CR4.12 ECU?
The most common symptoms include no engine start, no diagnostic communication, injector faults, engine stalling and Common Rail fuel pressure problems.
Is Bosch 0281012416 for Mercedes ML W164 3.0 CDI tested before sale?
Yes. Every engine ECU is electronically tested and checked for proper communication and operation before sale.
Does A6421506179 fit Mercedes Sprinter 3.0 CDI V6?
Yes, this ECU was also used in selected Mercedes Sprinter 3.0 CDI OM642 versions. Matching ECU numbers are the most important factor.
How do I program Mercedes engine ECU A6421506179 VIRGIN?
Programming is performed using Mercedes Star Diagnosis / Xentry. After installation immobilizer adaptation and ECU coding to vehicle equipment must be completed.
Can ECU 0281012416 be installed Plug & Play?
No. This version has been prepared as VIRGIN, therefore programming and vehicle assignment are required after installation.
Mercedes CLS W219 320 CDI – which OM642 engine ECU is used?
Many Mercedes CLS W219 320 CDI versions were equipped with Bosch 0281012416 ECU under Mercedes number A6421506179.