Mercedes 2.2 CDI OM646 ECU CR4.21 – Bosch 0281015062 / A6461507272 VIRGIN
ECU ENGINE CONTROLLER Bosch 0281015062 / Mercedes A6461507272 designed for Mercedes-Benz 2.2 CDI OM646 diesel engines using the CR4.21 injection system. The module is supplied in VIRGIN condition – fully reset, cleared from immobilizer data and previous vehicle synchronization.
This solution is intended for vehicles with a damaged or faulty engine control unit causing no communication, engine start problems, injector control faults or unstable operation. The ECU has been professionally bench tested, communication verified and prepared for installation and coding in the vehicle.
Vehicle compatibility – Bosch 0281015062 / A6461507272
- Mercedes Sprinter W906 2.2 CDI
- Mercedes Vito W639 2.2 CDI
- Mercedes Viano W639 2.2 CDI
Engine type: OM646 2.2 CDI diesel
Production years: approximately 2006–2011
Compatibility must always be verified by part number: 0281015062 / A6461507272
Condition and preparation
- VIRGIN reset – prepared like a new ECU
- fully tested on professional diagnostic bench
- verified CAN and OBD communication
- stable power-up and injector control checked
- ready for adaptation and programming
Programming and adaptation process
After installation, the ECU must be adapted to the vehicle using Mercedes diagnostic equipment:
- Mercedes Star Diagnosis
- Xentry diagnostic system
- Drive Authorization synchronization
- vehicle coding if required
The procedure is identical to installing a brand-new Mercedes ECU from the dealer.
Typical faults of ECU 0281015062 CR4.21
- no OBD communication
- CAN communication failure
- engine cranks but does not start
- injector activation faults
- damage after short circuit or water ingress
- random engine shutdown while driving
- internal ECU faults
FAQ – Bosch ECU ENGINE CONTROLLER 0281015062 / A6461507272
Does Bosch 0281015062 fit Mercedes Sprinter W906 2.2 CDI OM646?
Yes – if the original ECU numbers match 0281015062 or A6461507272, the module is compatible with the vehicle.
Does Mercedes ECU A6461507272 require coding after installation?
Yes. This is a VIRGIN ECU and requires adaptation using Star Diagnosis or Xentry.
Can ECU 0281015062 be installed without programming?
No. Immobilizer synchronization and ECU adaptation are required after installation.
Which Mercedes models use Bosch CR4.21 ECU 0281015062?
This ECU is commonly installed in Mercedes Sprinter W906, Vito W639 and Viano W639 with the OM646 2.2 CDI engine.
How do I program Mercedes ECU A6461507272?
The ECU must be adapted with Mercedes Star Diagnosis or Xentry diagnostic equipment.
Is 0281015062 compatible with the OM646 diesel engine?
Yes – this ECU is dedicated to Mercedes 2.2 CDI OM646 applications.
Is Mercedes 0281015062 plug and play?
No. VIRGIN versions require programming. Plug & Play operation is only possible after cloning the original ECU data.
What does no communication with ECU A6461507272 mean?
In many cases the issue is related to vehicle wiring, power supply, ground connection or CAN network faults rather than the ECU itself.
Can Bosch 0281015062 fail after water damage?
Yes – water ingress, corrosion and electrical short circuits are common causes of CR4.21 ECU failure.
What diagnostic tool is required for Mercedes CR4.21 ECU adaptation?
Mercedes Star Diagnosis or Xentry is recommended for proper immobilizer synchronization and coding.
