2.2L CDI · Remanufactured
Mercedes-Benz 2.2 CDI OM646 Bosch CRI2 remanufactured common-rail injector
OM646.983
Chuffing / ticking noise from the injector area; diesel smell in the engine bay; hard starting and uneven idle; black smoke under load; loss of power with rail-pressure faults. When two or more appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.
Injector seat sealing failure allowing combustion gas blow-by and carbon build-up around the injector (widely documented on this engine family); injector back-leak beyond specification; nozzle wear causing over-fuelling. Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.
Inspect around each injector for hardened carbon from seal blow-by before diagnosis — clean the seat thoroughly before fitting a replacement. Always fit a new copper sealing washer and follow the manufacturer seating procedure. Run a comparative leak-off test across all injectors before condemning one. Never condemn a common-rail injector on a fault code alone.
Each remanufactured 0445110263 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is calibrated on a common-rail test bench against the manufacturer's specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data on file.
The 0445110263 trusted family covers 2 verified vehicle fitments across 1 makes: Mercedes-Benz. Every fitment listed is registry-verified.
0445110263 cross-references 11 further OE numbers, including 0445110264, 0986435115, 0445110179, 0445110180, 0986435116, 6460700487, 646070048780 and 64607004870080. Always match the reference etched on your failed unit's body.
UK diesel injector specialists supplying OEM tested and calibrated remanufactured injectors. Trusted by garages and mechanics nationwide with 12-month warranty on every part.