0445115069 — Technical Research
Bosch piezo common-rail injector for the Mercedes-Benz 2.2 CDI OM646 engine, fitted across Sprinter, Vito, Viano, E-Class, C-Class and CLK. Mercedes OE A6460701187 / A6460701487; Bosch alternate 0986435356. Failures are driven by poor filtration, contamination and back-leakage; a replacement is coded to the ECU via Mercedes Xentry. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
Bosch 0445115069 2.2 CDI (OM646) Piezo Common Rail Injector (Mercedes Sprinter/Vito)
Bosch piezo common-rail injector for the Mercedes-Benz 2.2 CDI OM646 engine, fitted across Sprinter, Vito, Viano, E-Class, C-Class and CLK. Mercedes OE A6460701187 / A6460701487; Bosch alternate 0986435356. Failures are driven by poor filtration, contamination and back-leakage; a replacement is coded to the ECU via Mercedes Xentry. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
A leaking injector unbalances cylinder fuelling on the OM646.
Excess back-leakage drops cranking rail pressure.
Out-of-range delivery or rail-pressure deviation cuts power.
Poor atomisation over-fuels the cylinder.
Cylinder-specific injector or fuel-metering codes.
- InstallationCode the injector value to the correct cylinder with Mercedes Xentry/DAS before road test.
- InstallationRenew the combustion seal and clamp hardware and torque to spec; OM646 injectors can seize - free carefully to avoid breakage.
- MisdiagnosisRead live correction/back-leakage data to find the weak cylinder before removal.
- WarningFix contamination (filter/water/debris) first to protect the new injector.
- TestingBench-test across delivery and back-leakage points; verify spray pattern.
What is Bosch injector 0445115069?+
A Bosch piezo common-rail diesel injector for the Mercedes 2.2 CDI OM646 engine. Mercedes OE A6460701187/A6460701487; Bosch alternate 0986435356.
Which vehicles use 0445115069?+
Mercedes-Benz Sprinter, Vito, Viano, E-Class (W211), C-Class (W203/W204) and CLK 2.2 CDI.
Is it solenoid or piezo?+
It is a Bosch piezo common-rail injector.
What is the Mercedes part number?+
Mercedes OE numbers include A6460701187, A6460701487 and A6460701587 referencing Bosch 0445115069.
Does it need coding?+
Yes - the injector calibration code must be written to the ECU with Mercedes Xentry/DAS when fitting.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my OM646 Sprinter run rough?+
A leaking or worn injector unbalances fuelling; read live correction data and bench-test the cylinder.
What causes these injectors to fail?+
Poor filtration, contamination and back-leakage wear - fix the cause first.
Are OM646 injectors hard to remove?+
They can seize in the head; use a proper seized-injector kit and free carefully to avoid breaking the injector body.
Does a remanufactured 0445115069 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then coded on fitment.