Bosch 0445110259 Diesel Injector

On the Ford / PSA / Volvo 1.6 HDi / TDCi platform, a failing Bosch 0445110259 injector typically presents as: rough idle and hesitation when cold; excess black smoke under load; loss of power / limp mode; repeated dpf regeneration problems; individual cylinder balance corrections in live data.

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: nozzle carbon build-up from short-journey duty cycles — the dv6 is widely documented as sensitive to servicing and carbon build-up; injector back-leak beyond specification; injector seat carbon causing sealing problems on refit.

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

Clean injector seats carefully before fitting — carbon in the bore is a common cause of repeat leaks on the DV6. Test leak-off return volumes comparatively before condemning an injector. Injector coding is required after fitting on coded variants — follow the manufacturer procedure.

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 0445110259 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 0445110259 trusted family covers 17 verified vehicle fitments across 6 makes: Citroen, Peugeot, Ford, Mazda, Mini and Volvo. Every fitment listed on this page is registry-verified — no scraped or assumed applications.

0445110259 supersedes or cross-references 9 further OE numbers, including 0986435126, 1980J3, 9655328480, 1609849580, 5M5Q9F593AA, 1425514, Y60613H50 and 13537804978. 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.