0445110280 — Technical Research
Bosch CRI2 solenoid common-rail injector for the Renault 1.9 dCi (engine F9Q, ~96 kW / 131 hp) fitted to the Megane II, Scenic II / Grand Scenic II and Laguna II from 2005-2008. Renault OE 8200389369 / 8200535108 / 8200606383; Bosch exchange 0986435192. This is the later CRI2 generation - distinct from the early first-generation CRI1 0445110146 (Trafic/Master). Confirm the coding/correction procedure in Renault CLIP for the exact ECU. 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 0445110280 1.9 dCi (F9Q) Common Rail Injector (Renault Megane II / Scenic II / Laguna II)
Bosch CRI2 solenoid common-rail injector for the Renault 1.9 dCi (engine F9Q, ~96 kW / 131 hp) fitted to the Megane II, Scenic II / Grand Scenic II and Laguna II from 2005-2008. Renault OE 8200389369 / 8200535108 / 8200606383; Bosch exchange 0986435192. This is the later CRI2 generation - distinct from the early first-generation CRI1 0445110146 (Trafic/Master). Confirm the coding/correction procedure in Renault CLIP for the exact ECU. 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 1.9 dCi.
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.
- InstallationConfirm the injector correction/coding procedure in Renault CLIP for the exact ECU before road test.
- InstallationRenew the combustion seal and clamp hardware; torque to spec.
- MisdiagnosisRead live back-leakage data to find the weak cylinder before removal.
- WarningFix contamination (filter/water/debris) first; the 1.9 dCi is sensitive to fuel quality.
- TestingBench-test across delivery and back-leakage points; verify spray pattern before refit.
What is Bosch injector 0445110280?+
A Bosch CRI2 solenoid common-rail diesel injector for the Renault 1.9 dCi (F9Q) engine. Renault OE 8200389369; Bosch exchange 0986435192.
Which vehicles use 0445110280?+
Renault Megane II, Scenic II / Grand Scenic II and Laguna II with the 1.9 dCi (F9Q) engine, roughly 2005-2008.
Is it solenoid or piezo?+
It is a Bosch solenoid common-rail injector (CRI2).
Does 0445110280 need coding?+
Confirm the injector correction/coding procedure in Renault CLIP for the exact ECU when fitting.
What are the OE part numbers?+
Renault references include 8200389369, 8200535108 and 8200606383; the Bosch exchange number is 0986435192.
How is 0445110280 different from 0445110146?+
0445110280 is the later CRI2 1.9 dCi injector (Megane II/Scenic II/Laguna II); 0445110146 is the first-generation CRI1 (Trafic/Master). Match 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 1.9 dCi 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 0445110280 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan before dispatch.