0445110574 — Frequently Asked Questions
Verified answers about the Bosch 0445110574 2.1 CDI Common Rail Injector (Mercedes C/E-Class, Sprinter, Vito OM651 — Bosch supplier).
What is injector 0445110574?
0445110574 is a Bosch common rail solenoid injector (cri2) diesel injector for the Mercedes-Benz 2.1 CDI (OM651, Bosch supplier). It is supplied remanufactured, bench-tested and calibrated to OEM specification.
Which vehicles use 0445110574?
It is fitted to the Mercedes-Benz 2.1 CDI (OM651, Bosch supplier) — including Mercedes-Benz C-Class (W204) 200/220 CDI (OM651, Bosch); Mercedes-Benz E-Class (W212) 200/220 CDI (OM651, Bosch); Mercedes-Benz GLK (X204) 200/220 CDI (OM651, Bosch); Mercedes-Benz Sprinter (906) 210/213/313/316 CDI (OM651, Bosch). Confirm fitment by OE number and engine code.
What type of injector is 0445110574?
It is a Bosch Common Rail Solenoid Injector (CRI2). Always confirm the OEM markings on the injector body before fitting.
Does 0445110574 need coding when fitted?
Yes — each OM651 injector has a calibration code that must be programmed to the correct cylinder with Mercedes Xentry on fitment.
What are the symptoms of a failing 0445110574?
Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.
What causes these injectors to fail?
Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.
Is a remanufactured 0445110574 as good as new?
A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.
Should I replace one injector or the full set?
Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.
Do you bench-test the injector before dispatch?
Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.
Is delivery and warranty included?
Yes — the price includes free UK delivery and a 12-month warranty.
Is the Mercedes OM651 a Bosch or Delphi injector?
The OM651 2.1 CDI was factory-fitted with both. This 0445110574 is the Bosch-supplier injector (OE A6510703187); the Delphi-supplier injector is a separate part (e.g. A6510704987). They are not interchangeable — confirm the OEM marking before ordering.
Does the Mercedes OM651 injector need coding?
Yes — each OM651 injector carries a calibration code that must be programmed to the correct cylinder with Mercedes Xentry on fitment.