0445110369 — Technical Research
Bosch solenoid common-rail injector for the VW Group 2.0 TDI (EA189/EA288) engine, fitted across VW Golf/Passat/Caddy/Amarok/Crafter and related Audi/Seat/Skoda models. VW/Audi OE 03L130277J; Bosch alternate 0986435166; supersession alternates 0445110646/0445110647. Failures are driven by poor filtration, contamination and back-leakage; replacements are coded via the injector IQA value. 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 0445110369 2.0 TDI (EA189/EA288) Common Rail Injector (VW/Audi)
Bosch solenoid common-rail injector for the VW Group 2.0 TDI (EA189/EA288) engine, fitted across VW Golf/Passat/Caddy/Amarok/Crafter and related Audi/Seat/Skoda models. VW/Audi OE 03L130277J; Bosch alternate 0986435166; supersession alternates 0445110646/0445110647. Failures are driven by poor filtration, contamination and back-leakage; replacements are coded via the injector IQA value. 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 TDI.
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 IQA value to the correct cylinder with VCDS/ODIS before road test.
- InstallationRenew the combustion seal and clamp hardware and torque to spec.
- 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 0445110369?+
A Bosch solenoid common-rail diesel injector for the VW Group 2.0 TDI (EA189/EA288). VW/Audi OE 03L130277J; Bosch alternate 0986435166.
Which vehicles use 0445110369?+
VW Golf, Passat, CC, Caddy, Amarok, Crafter, Jetta, Beetle and Eos 2.0 TDI, plus related Audi/Seat/Skoda models.
Is it solenoid or piezo?+
It is a Bosch solenoid common-rail injector.
What is the VW/Audi part number?+
VW/Audi OE numbers include 03L130277J and 03L130277Q referencing Bosch 0445110369.
How does it differ from 0445110468?+
0445110369 covers earlier EA189/EA288 applications; 0445110468 is the later EA288 variant. Always confirm the exact engine code and VW part number for your VIN.
Does it need coding?+
Yes - write the IQA value to the correct cylinder with VCDS/ODIS when fitting.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
What causes these injectors to fail?+
Poor filtration, contamination and back-leakage wear - fix the cause first.
Do I need to renew the seals?+
Yes - renew the combustion seal and clamp hardware; reused seals cause blow-by.
Does a remanufactured 0445110369 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then coded on fitment.