0445110259 — Technical Research
Bosch solenoid common-rail injector for the 1.6 HDi/TDCi (DV6 / 9Hx) engine shared by PSA, Ford and Volvo, fitted across Citroen C3/C4/C5, Peugeot 206/207/307, Ford Focus/C-MAX and Volvo S40/V50. PSA OE 9655328480 / 1980J3; Ford 5M5Q-9F593-AA; Volvo 30756094; Bosch alternate 0986435126. Failures are driven by poor filtration, contamination and back-leakage. 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 0445110259 1.6 HDi/TDCi Common Rail Injector (PSA / Ford / Volvo DV6)
Bosch solenoid common-rail injector for the 1.6 HDi/TDCi (DV6 / 9Hx) engine shared by PSA, Ford and Volvo, fitted across Citroen C3/C4/C5, Peugeot 206/207/307, Ford Focus/C-MAX and Volvo S40/V50. PSA OE 9655328480 / 1980J3; Ford 5M5Q-9F593-AA; Volvo 30756094; Bosch alternate 0986435126. Failures are driven by poor filtration, contamination and back-leakage. 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 1.6 HDi.
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/C2I value to the correct cylinder with PSA Diagbox / Ford IDS / Volvo VIDA 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 - the DV6 is sensitive to fuel quality.
- TestingBench-test across delivery and back-leakage points; verify spray pattern.
What is Bosch injector 0445110259?+
A Bosch solenoid common-rail diesel injector for the 1.6 HDi/TDCi (DV6) engine shared by PSA, Ford and Volvo. PSA OE 9655328480; Bosch alternate 0986435126.
Which vehicles use 0445110259?+
Citroen C3/C4/C5/Xsara, Peugeot 206/207/307, Ford Focus/C-MAX, Volvo S40/V50/C30 and Mini Cooper D 1.6 diesel.
Is it solenoid or piezo?+
It is a Bosch solenoid common-rail injector.
What are the PSA/Ford/Volvo numbers?+
PSA 9655328480 / 1980J3, Ford 5M5Q-9F593-AA and Volvo 30756094 all reference Bosch 0445110259.
Does it need coding?+
Yes - code the C2I/IQA value with PSA Diagbox, Ford IDS or Volvo VIDA 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 1.6 HDi run rough?+
A worn or leaking injector unbalances fuelling; read live correction data and bench-test the cylinder.
What causes DV6 injectors to fail?+
Poor fuel filtration and contamination - the DV6 is especially sensitive, so fix the fuel system first.
Do I need to renew the seals?+
Yes - renew the combustion seal and clamp hardware; reused seals cause blow-by.
Does a remanufactured 0445110259 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan, then coded on fitment.