Does the A6461506172 engine control unit fit Mercedes Sprinter?
The engine control unit with number 0281015051 and designation A6461506172 CR4.20 is an original ECU used in Mercedes-Benz Sprinter with 2.2 CDI engines. It is also commonly found in Vito and Viano models with the same generation of CDI engines.
What does A6461506172 mean?
A6461506172 is the Mercedes-Benz part number identifying a specific ECU version. Together with Bosch number 0281015051, it ensures correct identification.
What does 0281015051 mean?
The Bosch number 0281015051 defines the ECU hardware and allows precise matching to the 2.2 CDI engine.
What does CR4.20 mean?
CR4.20 is a Common Rail ECU system controlling fuel injection, pressure regulation and diesel engine management.
Does A6461506172 require programming?
The A6461506172 / 0281015051 ECU may be locked, virgin or ready for adaptation. In most cases, it requires coding with Mercedes diagnostic tools (Star Diagnosis / Xentry).
How to check compatibility?
Compare 0281015051 or A6461506172 with your current ECU to ensure proper fitment.
Why is 0281015051 important?
It is the Bosch identifier that defines the exact ECU version for Mercedes 2.2 CDI engines.
Is CR4.20 0281015051 ready to install?
Depending on the variant, it may be plug & play or require immobilizer coding and adaptation.
Symptoms of a faulty A6461506172 ECU
Typical issues include no start, no diagnostic communication, limp mode, injection errors or unstable engine operation.
Does A6461506172 appear under other numbers?
Yes — it is always based on Bosch 0281015051 and CR4.20 system, with possible software variations.
What to check before buying 0281015051?
Ensure number compatibility, check condition and select correct variant (locked or virgin).
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