Diesel Pump Citroen Peugeot Opel 1.5 d

The high-pressure diesel pump with OE code 9817903080 è is a component used in the 1.5 BlueHDi engines produced by PSA and in the corresponding Opel diesel engines, derived from’the integration into the Stellantis group. The component is part of the Common Rail injection system and is responsible for pressurizing the fuel to supply the rail and the injectors. È a radial pump, electronically controlled, often supplied as original equipment by Bosch.

Technical specifications

• Type: Common Rail high-pressure pump (radial, 1 piston)
• Original manufacturer: Bosch
• Materials: aluminum alloy body, internal piston made of hardened steel
• Maximum pressure: up to 2.000 bar
• Weight: approximately 3 kg
• Flange connection with integrated pressure regulation valve seat
• Power supply: managed via PWM actuator controlled by the engine ECU
• Compatible with diesel fuel EN590 and blended biodiesel

Functionalityà

The pump is responsible for drawing fuel from the low-pressure tank and compressing it to very high values to ensure precise atomization by the injectors.’It works in synergy with the pressure regulating valve and the rail pressure sensor, modulating the quantityà and the pressure of the diesel fuel based on engine demand.

DIPA canò intervene to revise these modules thanks to its experience and expertise.

Vehicle applications

Peugeot

• 208
• 2008
• 308
• 301
• 3008
• 508
• 5008
• Partner
• Expert
• Rifter
• Traveller

Citroën

• C3
• C3 Aircross
• C-Elysee
• C4
• C4 Cactus
• C4 SpaceTourer
• C5
• Grand C4 SpaceTourer/Van
• Spacetourer Bus
• Berlingo
• Jumpy

DS

• DS3
• DS4
• DS7 Crossback

Opel

• Grandland
• Grandland X
• Mokka
• Vivaro
• Zafira Life

DIPA recommends to always check the compatibilityà of the spare part before’purchase.

Typical defects

Internal wear

The pump canò present a degradation of the internal sliding surfaces of the piston, especially in the case of contaminated fuel or low lubricating power. This leads to a decrease in delivery pressure.

Pressure loss

In the presence of deteriorated seals or a malfunctioning pressure regulator, the pressure in the rail canò become unstable, causing jerks, difficultyà in starting or stalling.

Contamination from filings

In the event of internal breakage, the pump canò produce metallic particles that spread throughout the fuel circuit, also damaging the injectors and the rail sensor. In these cases è it is necessary to also replace the filters, the rail, and thoroughly clean the’system.

Faulty pressure regulator

The adjustment valve integrated into the pump canò get stuck or remain partially open. This results in irregular delivery, increased consumption, and the engine warning light turning on.

Incorrectly coded pump

In some ECU configurations, the lack of synchronization between the replacement pump and the ECU parameters canò cause temporary malfunctions or errors during’starting.

DIPA highlights: the Bosch pump CP4 has the peculiarityà of failing due to metal filings released from the wear of the internal sleeve and the shaft. These impuritiesà, entering the fuel circuit, they irreparably damage it. Before replacement, carefully follow the points listed below to perform a correct intervention:

1)      Thorough cleaning (e.g., with ultrasonic cleaning) or better yet, replacement of the tank.

2)      Replacement of all fuel lines and the immersion pump.

3)      Thorough cleaning (e.g., with ultrasonic cleaning) or better yet, replacement of the injector rail.

4)      Replacement of the injectors and the diesel filter (also replace it ifù of a time during operations).

Final conclusions

The high-pressure diesel pump with OE code 9817903080 è is a key component of the fuel system for engines 1.5 BlueHDi and Opel derivatives. Its performance directly affects efficiency, consumption, and emissions.

DIPA has a wide range of diesel pumps: from original ones to aftermarket options selected from the best manufacturers on the market. Moreover, it offers refurbished spare parts with performance equal to new, which allows for savings during replacement and contributes to the protection of the’environment thanks to the’circular economy. Also inquire about the availabilityà of refurbished parts ready in stock for quick interventions and without waiting times.