Outlet pipe for Citroën Peugeot 1570J6 injection

Description

Outlet pipe to injector 2.0 HDI RHR RHK SIEMENS system
Used, fully sealed

Part description

This injection outlet pipe (pipe for the common rail system) is intended for Citroën and Peugeot cars and is particularly sought after under code 1570J6. It is a part from the RAIL + accessories group, which ensures proper fuel routing to the injector in the SIEMENS system. Due to the fact that the part is used and fully sealing, it is suitable as a cost-effective replacement when repairing a leak or mechanical damage to the original pipe.

Technical information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4; Citroën C4 PICASSO; Citroën C5; Citroën C8; PEUGEOT 3008 I; Peugeot 307; Peugeot 308; PEUGEOT 5008 I; Peugeot 807
• Other numbers: not specified

Product codes

• Product codes: 1570J6

Installation recommendations

Generally/typically for injector rails (rails/pipes) cleanliness and proper seating are essential for leaks. The exact procedure may vary depending on the specific engine design and bodywork.

1) Before assembly

• Compare the new and original piece: shape, length, pipe routing, type of ends and contact surfaces.
• Check that the tube is not dented, cracked or bent out of shape.
• Check the condition of threads/nuts and seat cones (they must not be pressed or dirty).
• Verify compliance by code 1570J6.

2) Necessary tools and materials

• A set of wrenches suitable for fuel pipes (ideal for screwing, so as not to tear the edges).
• Clean, lint-free cloths, or degreasing cleaner (for the surrounding area and contact surfaces).
• Protective gloves and goggles.

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and allow the engine to cool.
2. Typically disconnect the battery (prevention of unwanted switching on of systems and higher work safety).
3. Clean the area around the pipes and the injector/rail so that dirt does not get into the system during disassembly.
4. Remove obstructing covers/components only to the extent necessary for safe access.
5. Carefully loosen the fittings at both ends of the original pipe (work sensitively so as not to damage the counterpart).
6. Remove the original tube without prying on sensitive parts and without violent bending.
7. Check and clean the abutment surfaces of the counters (no scratching the cones/abutments).
8. Set the pipe in the original route so that it is not under tension and does not touch edges or moving parts anywhere.
9. First screw in the screw fitting by hand (to avoid thread crossing), then tighten with a wrench.
10. Tighten gradually and with feeling; make sure that the tube does not “twist” when tightening and that it remains properly seated.
11. Put back the dismantled covers/components.
12. Connect the battery (if disconnected).
• 4) Post-assembly checks and function verification
  • After the first start, check the tightness of both connections (visually and according to the possible smell of fuel).
  • Do a short test drive and then check again for moisture/leakage around the fitting.

  5) The most common assembly mistakes + how to avoid them

  • Impurities in the abutments → always carefully clean the surroundings and the abutment surfaces before assembly.
  • Crossing the thread → always start grabbing the screw with your hand.
  • Pipe in tension / poorly guided route → place the pipe in its original position without bending it forcibly.
  • Damage of the fitting with an unsuitable wrench → use a wrench designed for fitting fuel pipes.

  Reasons why the part is damaged

  • Corrosion and surface degradation in the engine compartment (moisture, salt, dirt).
  • Vibration and long-term stress – gradual loosening/fatigue of the material and subsequent leakage.
  • Mechanical damage during the previous repair (bent, dented, torn screws).
  • Leaky seating surfaces due to dirt or incorrect seating during assembly.