0445110713 — Technical Research
Bosch solenoid common-rail injector for the GM/Opel 2.0 CDTI (engine B20DTH/D20DTH) fitted to the Vauxhall/Opel Insignia and Zafira C from 2015. GM OE 55488616. This is the later Euro-6 GM 2.0 (B20DTH) injector - distinct from the earlier A20DT 2.0 CDTi (Bosch 0445110327). Replacement injectors are coded to the ECU with the injector correction value via GM MDI/Tech2. Failures are driven by poor fuel filtration, contamination and back-leakage wear. 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 0445110713 2.0 CDTI (B20DTH/D20DTH) Common Rail Injector (Vauxhall/Opel Insignia / Zafira)
Bosch solenoid common-rail injector for the GM/Opel 2.0 CDTI (engine B20DTH/D20DTH) fitted to the Vauxhall/Opel Insignia and Zafira C from 2015. GM OE 55488616. This is the later Euro-6 GM 2.0 (B20DTH) injector - distinct from the earlier A20DT 2.0 CDTi (Bosch 0445110327). Replacement injectors are coded to the ECU with the injector correction value via GM MDI/Tech2. Failures are driven by poor fuel filtration, contamination and back-leakage wear. 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 2.0 CDTI.
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 correction value to the correct cylinder with GM MDI/Tech2 before road test.
- InstallationRenew the combustion seal and clamp hardware; torque to spec.
- MisdiagnosisRead live back-leakage data to find the weak cylinder before removal.
- WarningFix contamination (filter/water/debris) first; the B20DTH is sensitive to fuel quality.
- TestingBench-test across delivery and back-leakage points; verify spray pattern before refit.
What is Bosch injector 0445110713?+
A Bosch solenoid common-rail diesel injector for the GM/Opel 2.0 CDTI (B20DTH/D20DTH) engine. GM OE 55488616.
Which vehicles use 0445110713?+
Vauxhall/Opel Insignia A, Insignia B (Grand Sport/Sports Tourer) and Zafira C 2.0 CDTI, from 2015.
Is it solenoid or piezo?+
It is a Bosch solenoid common-rail injector.
Does 0445110713 need coding?+
Yes - code the injector correction value to the correct cylinder with GM MDI/Tech2 when fitting.
What is the OE part number?+
GM/Vauxhall 55488616 references Bosch 0445110713.
How is 0445110713 different from 0445110327?+
0445110713 is the later Euro-6 B20DTH 2.0 CDTI injector; 0445110327 is the earlier A20DT 2.0 CDTi. Confirm the OE number and engine code on your vehicle.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my 2.0 CDTI run rough?+
A worn or leaking injector unbalances fuelling; read live back-leakage data and bench-test the weak cylinder.
What causes these injectors to fail?+
Poor fuel filtration, contamination and back-leakage wear - fix the cause first.
Does a remanufactured 0445110713 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then coded on fitment.