Bosch 0445110369 Diesel Injector

On the VW/Audi 2.0 TDI (EA189/EA288) platform, a failing Bosch 0445110369 injector typically presents as: hard starting when warm; rough idle with single-cylinder knock; loss of power / limp mode with rail-pressure faults; misfire entries on individual cylinders; metal-in-fuel contamination after hp pump failure.

When two or more of these appear together, suspect the injector before peripheral systems — a comparative leak-off test and live-data cylinder-balance review will isolate the failed unit without tear-down.

The documented failure modes on this platform are: injector damage from hp pump debris circulating through the fuel system; injector back-leak beyond specification on high-mileage engines; solenoid circuit faults logging injector circuit codes.

Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.

If the high-pressure pump has failed, inspect the entire fuel system for metal debris before fitting replacement injectors. Injector coding via ODIS/VCDS is required after replacement. Compare cylinder balance (smooth-running) values in live data to identify the offending cylinder before removal.

Never condemn a common-rail injector on a fault code alone — codes identify the circuit or cylinder, while leak-off volumes and correction values identify the component.

Each remanufactured 0445110369 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is then calibrated on a common-rail test bench against the manufacturer's specification sheet — delivery, back-leak and response are all verified before the injector is sealed and despatched with its calibration data on file.

Every unit carries a 12-month parts warranty and free UK delivery.

The 0445110369 trusted family covers 28 verified vehicle fitments across 4 makes: Volkswagen, Audi, Skoda and Seat. Every fitment listed on this page is registry-verified — no scraped or assumed applications.

0445110369 supersedes or cross-references 11 further OE numbers, including 0445110646, 0445110647, 0445110368, 0986435166, 0986435167, 03L130277J, 03L130277Q and 03L130855CX. Always match the reference etched on your failed unit's body — cross-references within a family are verified equivalents, but etched numbers remain the source of truth.