The Oil Vapour Vent Pipe for Citroën and Peugeot 2.0 HDi RHR engines (part numbers 9657540580, 1192Z8) routes crankcase oil vapours away from the engine. Proper ventilation helps maintain performance, reduce emissions and prevent oil contamination of intake components. The pipe is a direct-fit solution for PSA vehicles including Citroën C5, Citroën C8, Peugeot 307, Peugeot 407 and Peugeot 807.

Why It Matters

The crankcase vent pipe is a key element of the PCV/evaporation system. When the pipe is damaged or blocked, symptoms can include increased oil consumption, exhaust smoke, rough idle and oil deposits in the intake. Replacing a faulty vent pipe restores correct crankcase ventilation and engine behaviour.

Common Failure Modes

• Cracks or splits caused by heat cycling and material ageing
• Internal clogging from oil sludge and carbon buildup
• Leaks at hose connections due to degraded seals or clamps

Fitment & Replacement

Compatible with 2.0 HDi RHR engines used in:

• Citroën C5
• Citroën C8
• Peugeot 307
• Peugeot 407
• Peugeot 807

Replacement is straightforward for experienced mechanics: remove any necessary engine covers, loosen or remove clamps and associated lines, detach the old pipe from the crankcase and intake connections, and install the replacement ensuring correct seating and secure clamping. Inspect adjacent hoses, seals and clamps and replace if damaged. Always follow vehicle-specific service instructions and torque values where provided.

Condition

This is a previously used replacement part in good serviceable condition and ready for installation. Please verify compatibility using the product codes and vehicle models listed below before purchase.

Technical Information

Manufacturer: PSA Peugeot Citroën
Model: Citroën C5, Citroën C8, Peugeot 307, Peugeot 407, Peugeot 807
Product Codes: 9657540580, 1192Z8
Additional Numbers: N/A

Inspect the ventilation system during scheduled maintenance or when symptoms appear. Correct installation of the vent pipe helps preserve engine efficiency and reduces the risk of intake contamination. If unsure about fitment, compare the part numbers 9657540580 and 1192Z8 with your vehicle documentation or consult a qualified technician.