Product Overview

High-quality used Bosch common-rail injector set for 2.2 HDi engines, suitable for a range of Stellantis diesel models. These injectors are a direct fit for engines that use Bosch part 044515025 and related OEM numbers. Ideal for professional workshops and experienced DIY mechanics looking to restore engine smoothness, recover lost performance or replace worn injectors after mileage accumulation.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C8 2.2 HDi (source vehicle). Compatible With: Citroën C‑Crosser, Citroën C5, Peugeot 4007, Peugeot 807 And Other 2.2 HDi Stellantis Applications
• Product Codes: 044515025
• Other Numbers: 9659228880, 1980J8, 1980EF, 44515025

Condition And Origin

Set removed from a Citroën C8 2.2 HDi 125 kW with 128,000 km. At the time of removal the vehicle started reliably in cold conditions, showed no visible exhaust smoke and had a clean DPF. The injectors were operating correctly in the donor vehicle.

Installation Recommendations

• Relieve fuel system pressure and disconnect the battery before starting work.
• Carefully remove the fuel rail and injectors; avoid contaminating the common-rail system.
• Always fit new injector O‑rings and sealing washers/copper crush washers when installing injectors.
• Clean injector bores and rails; ensure sealing surfaces are free of debris to prevent leaks.
• Use correct torque values for rail and injector hold‑down bolts (refer to factory workshop manual for exact figures).
• After installation, prime the fuel system and check for leaks. Start the engine and observe for leaks, rough running or fault codes.
• In many PSA common‑rail systems an injector adaptation/calibration with a diagnostic tool (DiagBox or equivalent) may be required to restore optimal fueling and idle quality. If available, perform injector coding/adaptation after installation.
• For best results, have installation performed or checked by a qualified technician familiar with Bosch common‑rail systems.

Why Injectors Commonly Fail

• Contaminated Fuel: Particles and deposits from poor fuel or a degraded fuel filter cause clogging and wear.
• Wear And Tear: High mileage and repeated thermal/corrosive stress reduce spray quality and sealing.
• Fuel System Issues: Faulty high‑pressure pumps or excessive return flow can overload injectors.
• Electrical Problems: Connector corrosion, wiring faults or driver issues in the ECU may lead to misfiring.
• Excessive Soot Or DPF Backpressure: Poor combustion and DPF problems increase contaminant load and stress the injectors.

Typical Symptoms Of Failing Injectors

• Rough Idle And Misfires
• Increased Fuel Consumption
• Hard Cold Starts Or No Start Condition
• Visible Smoke Under Acceleration
• Loss Of Power And Hesitation
• Engine Fault Codes Related To Misfire Or Injector Circuit

Notes For Buyers

This is a used set of Bosch injectors removed from a running Citroën C8 with 128,000 km. Part numbers listed above are widely used when searching for compatibility. Suitable for mechanics and experienced DIY customers comfortable with diesel fuel system work. Replace all seals during installation and consider injector adaptation for precise fueling.

This injection set was originally installed in a Citroën C5 2.2 HDI with 125 kW power and 221,000 km mileage. Despite this mileage, the vehicle started reliably in freezing conditions without smoke or performance issues.

If you are searching for reliable, functional, and proven auto parts for Citroën or Peugeot models, this Bosch injection set for 2.2 HDI engines is an excellent choice for professional mechanics and car enthusiasts performing their own repairs. It offers efficient fuel delivery ensuring optimal engine performance and reduced emissions.

Thanks to its excellent cold-start performance and smoke-free operation, this injection set helps maintain engine quality and power. It includes all necessary components to restore your engine’s optimum function without the need for additional investments in new parts. Suitable for long-distance and city driving without interruption.

Technical Information

• Manufacturer: Bosch
• Models: Citroën C5, Citroën C8, Peugeot 807
• Product Codes: 044515025, 1980J8, 1980EF
• Additional Information: These injection sets are specifically designed to optimize the onboard fuel management systems of the listed models, enhancing performance while lowering fuel consumption.

The Bosch injector set is ready for installation, significantly reducing installation time and minimizing potential complications. This is a cost-effective solution for technicians seeking high-quality components that restore engine performance in Citroën and Peugeot vehicles.

Let your car perform like new with reliable parts that guarantee smooth operation and extend your vehicle’s lifespan. Order now to ensure your car stays in motion with top-notch Bosch injection technology.