Description
Fuel Pressure Regulator Siemens VDO, DRV Valve For 2.0 HDi Engines. Nearly New.
High-quality Siemens VDO DRV fuel pressure regulator designed for PSA 2.0 HDi diesel engines. This precision solenoid valve controls the high-pressure fuel system and restores precise rail pressure for reliable injection performance. Ideal for professional workshops and DIY mechanics who service Citroën and Peugeot models, the unit is commonly searched by part numbers (A2C59506225 / X39-800-300-005Z / 193341). Installing a properly functioning DRV brings back smooth idling, consistent power delivery and reduces fuel-related fault codes.
Technical Information
- Manufacturer: Siemens VDO
- Model: DRV Fuel Pressure Regulator For 2.0 HDi
- Product Codes: A2C59506225
- Additional Numbers: X39-800-300-005Z | 193341
Compatible Vehicles (Examples)
Commonly fitted to Stellantis models with 2.0 HDi (DW10 family) engines, including:
- Citroën Berlingo
- Citroën C4 / C4 Picasso
- Citroën C5
- Citroën C8
- Citroën Xsara
- Peugeot 307
- Peugeot 407
- Peugeot 807
- Peugeot Partner
Function And Symptoms
The DRV (pressure regulator) is an electronically controlled valve that adjusts high-pressure fuel delivered by the pump to maintain the rail pressure required by the injectors. When the regulator fails or sticks, typical symptoms include hard or no start, loss of power under load, rough idle, increased exhaust smoke, fuel smell, and diagnostic trouble codes related to rail pressure (low or inconsistent pressure). Faults may trigger limp mode or degraded engine performance.
Replacement Procedure
Basic replacement steps for a trained technician or experienced DIY mechanic:
- Depressurize the fuel system before starting work to avoid fuel spray.
- Disconnect the battery as a safety precaution.
- Access the DRV on the high-pressure pump or its mounting location; remove any covers or intake components obstructing access.
- Disconnect the electrical connector and remove fastening bolts.
- Replace the unit and always renew associated seals or O-rings to ensure leak-free installation.
- Prime the fuel system (using the manual priming procedure or the vehicle’s lift pump cycle) and clear related fault codes with a diagnostic tool.
- Check Carefully For Leaks And Verify Rail Pressure And Engine Operation Before Road Testing.
Installation Recommendations
- Use Proper Hand Tools And Follow Manufacturer Fastening Guidelines; Replace Seals Or O-Rings During Installation.
- Perform A System Prime And Diagnostic Scan After Fitting To Ensure Correct Operation And Clear Historical Faults.
- If Any Electrical Or Wiring Damage Is Found, Repair Before Installing The New Unit To Prevent Recurrence.
- Work In A Well-Ventilated Area And Dispose Of Any Contaminated Fuel And Seals According To Local Regulations.
Why This Part Commonly Fails
Failure Causes:
- Contaminated Fuel Or Debris Causing Valve Sticking Or Internal Wear.
- Electrical Problems Such As Connector Corrosion Or Damaged Wiring Harness.
- Wear From High Mileage Or Poor Maintenance Leading To Loss Of Accuracy.
- Faulty Seals Causing External Or Internal Leaks And Pressure Loss.
Life expectancy Depends On Fuel Quality, Maintenance And Operating Conditions; Units In Poorly Maintained Or Contaminated Systems Often Fail Earlier. When Replacing The Regulator, Also Inspect Fuel Filters And The High-Pressure Pump For Secondary Damage.
Keywords For Search
Siemens VDO DRV A2C59506225, Fuel Pressure Regulator 2.0 HDi, X39-800-300-005Z, 193341, Citroën Peugeot diesel regulator, HDi rail pressure valve.
