Description
Feed Pipe To Second Cylinder For RAIL 1.4 HDi, 1.6 HDi And e‑HDi.
This is a used OEM feed pipe designed for the second cylinder in the common-rail fuel system of Citroën and Peugeot diesel engines. Supplied under code 1570Q0, the part connects the high-pressure fuel rail to the injector at cylinder No. 2 and is a direct-fit replacement for vehicles equipped with 1.4 HDi and 1.6 HDi / e‑HDi engines.
Function And Importance
The feed pipe delivers high-pressure diesel from the common rail to the injector on the second cylinder. It must maintain a sealed, leak-free connection under high pressure and vibration, ensuring correct injector pressure and timing. A faulty feed pipe causes fuel leaks, loss of fuel pressure, misfires, rough idling and can trigger injection-related fault codes.
Compatibility And Typical Applications
- Designed for Citroën and Peugeot passenger cars with 1.4 HDi and 1.6 HDi common-rail diesel engines, including e‑HDi start/stop variants.
- Common vehicle families using these engines: small and compact models from Citroën (for example C3, C4, Berlingo) and Peugeot (for example 207, 307, 308, Partner). Verify engine variant before fitting.
- OEM/Product Code: 1570Q0 — commonly used search term for quick lookup.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: For RAIL 1.4 HDi and 1.6 HDi (including e‑HDi)
- Product Codes: 1570Q0
- Other Numbers: None Available
Installation Recommendation
Only fit the pipe when the engine and fuel system are depressurised. Recommended steps for professional or experienced DIY installation:
- Relieve fuel system pressure before disconnecting any high-pressure components.
- Remove the old feed pipe and inspect mating faces, connectors and injector seat for damage.
- Always replace sealing elements (copper crush washers or seals) and any damaged clamps or brackets. Never reuse crushed copper washers.
- Fit the new pipe finger-tight, then torque to manufacturer specifications using a calibrated torque wrench; avoid over-tightening to prevent thread or pipe damage.
- After assembly, prime the fuel system according to the vehicle service procedure and check for leaks at idle and under load.
- Work in a well-ventilated area, keep ignition sources away and use personal protective equipment when handling diesel and fuel components.
Why This Part Most Commonly Fails
- Corrosion or material fatigue from long-term exposure to contaminants and moisture.
- Mechanical damage during previous repairs or from accidental contact with tools or engine movement.
- Degraded or incorrectly fitted sealing washers leading to slow or visible fuel leaks.
- Vibration and thermal cycling causing micro-cracks or loosening of fittings over time.
Symptoms of failure include visible diesel leaks, fuel smell, rough idle, loss of power, hard starting and possible injection-related fault codes. Replacing the feed pipe and all related seals restores correct rail pressure to the injector and eliminates leak-related issues.
Search keyword tip: If you are looking for a direct replacement, search by product code 1570Q0 together with “fuel rail feed pipe” and your engine type (1.4 HDi / 1.6 HDi / e‑HDi) to find matching listings quickly.
