0445110078 — Technical Research
Bosch solenoid common-rail injector for the first-generation Volvo 2.4D / D5 (engine D5244T) fitted to the S60, S80, V70/XC70 and XC90 from 2001-2006. Volvo OE 8658352 (and the 8658350/8658351/8658353 family); Bosch exchange 0986435120; Bosch alternate 0445110077. This early Volvo CR generation is not individually trim-coded, but always confirm the procedure in Volvo VIDA before refit. 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 0445110078 2.4D / D5 (D5244T) Common Rail Injector (Volvo S60/S80/V70/XC70/XC90)
Bosch solenoid common-rail injector for the first-generation Volvo 2.4D / D5 (engine D5244T) fitted to the S60, S80, V70/XC70 and XC90 from 2001-2006. Volvo OE 8658352 (and the 8658350/8658351/8658353 family); Bosch exchange 0986435120; Bosch alternate 0445110077. This early Volvo CR generation is not individually trim-coded, but always confirm the procedure in Volvo VIDA before refit. 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 2.4 D5.
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.
- InstallationRenew the copper combustion seal and clamp hardware; torque to Volvo spec.
- InstallationConfirm in Volvo VIDA whether trim coding applies for the exact build before road test.
- MisdiagnosisRead live back-leakage data to find the weak cylinder before removal.
- WarningFix contamination (filter/water/debris) first; the D5 is sensitive to fuel quality.
- TestingBench-test across delivery and back-leakage points; verify spray pattern before refit.
What is Bosch injector 0445110078?+
A Bosch solenoid common-rail diesel injector for the first-generation Volvo 2.4D / D5 (D5244T) engine. Volvo OE 8658352; Bosch exchange 0986435120.
Which vehicles use 0445110078?+
Volvo S60 I, S80 I, V70 II/XC70 and XC90 I with the 2.4D / D5 (D5244T) engine, roughly 2001-2007.
Is it solenoid or piezo?+
It is a Bosch solenoid common-rail injector.
Does 0445110078 need coding?+
This early Volvo CR generation is generally not individually trim-coded, but confirm the procedure in Volvo VIDA for the exact build.
What are the OE part numbers?+
Volvo references include 8658352, 8658350, 8627319 and 30756063; the Bosch exchange number is 0986435120.
How is 0445110078 different from 0445110251?+
0445110078 is the early D5244T injector (S60/S80/V70/XC90, 2001-2006); 0445110251 covers the later D5244T4/T5/T7 generation. Confirm the OE number stamped on your injector.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my Volvo D5 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 0445110078 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan before dispatch.