Description
SIEMENS injector 2.0 HDI 9657144580 9647247280 CL5. Fits Citroën, Fiat, Ford, Peugeot, Volvo vehicles. Removed from a vehicle with 185,000 km. The vehicle had excellent engine operation. Injectors with mileage over 100,000 km may not pass a 100% possible test.
This high-pressure fuel injector is intended for 2.0 HDi applications (CL5 type) and is a direct-fit unit for a range of PSA-derived engines. It delivers the precise metering and atomization required for efficient combustion, smooth idling and responsive throttle behavior. The assembly is commonly sought under the manufacturer part numbers listed below, making it easy to find by reference code when ordering or replacing individual units.
Typical Vehicle Applications
Common compatible models include Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Citroën C8, Peugeot 307, Peugeot 407 and Peugeot 807. The injector is also used in certain Fiat, Ford and Volvo models that share the PSA 2.0 HDi engine family.
Technical Information
- Manufacturer: Siemens
- Model: 2.0 HDi (CL5)
- Product Codes: 9657144580, 9647247280
- Other Numbers: 1980J5, 1980Z0
Installation Recommendations
- Work On A Cool Engine And Relieve Fuel System Pressure Before Starting.
- Remove The Common Rail Mounting Bracket To Access Injectors; Disconnect Electrical Connector Carefully.
- Replace Injector O-Rings And Seals With New Ones During Installation; Lightly Lubricate O-Rings With Clean Diesel Or Engine Oil To Avoid Pinching.
- Clean The Injector Seats And Rail To Remove Carbon Or Debris Before Fitting The New Unit.
- Tighten Fasteners To Manufacturer Torque Specifications And Reprime The Fuel System After Installation To Prevent Air Locks.
- Consider Replacing The Fuel Filter Prior To Installation To Reduce Risk Of Contamination To The New Injector.
Why These Injectors Fail Most Often
- Contamination And Coking: Diesel impurities and carbon deposits can clog the nozzle or alter spray pattern, reducing atomization and performance.
- Wear And Tear: High mileage (commonly over 100,000 km) increases the chance of internal wear or leakage.
- Seal Degradation: Aged O-rings or injector seals can harden and leak, causing poor running or fuel smell.
- Electrical Faults: Connector corrosion or internal coil failures lead to misfiring or inactivity of the injector.
- Poor Fuel Quality: Low-quality or contaminated fuel accelerates nozzle wear and deposit formation.
Practical Tips: If a vehicle shows uneven idle, misfires, rough acceleration or increased fuel consumption, inspect injectors and related fuel system components. For best long-term results, combine injector replacement with a fresh fuel filter and a fuel system clean when appropriate.
