Description
A/C Pipe for Citroën C4 II B7, C5 II and Peugeot 308, 508, 5008, DS4
Direct-fit air conditioning refrigerant line, OEM Part Number 9800404180, designed for a range of PSA group vehicles. This A/C pipe restores sealed connections in the air conditioning circuit, preventing refrigerant leaks and maintaining optimal cooling performance. Ideal for professional workshops and experienced DIY mechanics searching by original part number. The robust construction ensures reliable service life under normal operating conditions and a precise fit with factory mating components.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 II B7; Citroën C5 II; Peugeot 308 (including T9); Peugeot 508; Peugeot 5008 I; DS4
- Product Codes: 9800404180
- Other Numbers: Not Available
Function And Application
The pipe is a part of the vehicle air conditioning circuit that conveys refrigerant between components (compressor, condenser, evaporator, receiver/drier or accumulator). It provides a sealed, pressure-rated path and mates to system fittings using O-rings or flared connections to prevent leaks and ensure stable system pressure for efficient cooling.
Replacement Procedure
Basic replacement steps for experienced technicians:
- Recover refrigerant using certified A/C service equipment in accordance with local regulations.
- Locate and unbolt the damaged pipe; remove clamps or brackets holding the line in place.
- Replace all associated O-rings/seals with new, correctly sized parts and lubricate them with the appropriate PAG oil.
- Install the new pipe, secure brackets, and tighten fittings to manufacturer specifications.
- Evacuate the system to remove moisture and air, then recharge with the vehicle-specified refrigerant and correct oil charge.
- Perform a pressure and leak test, then verify A/C system performance under load.
Installation Recommendations
Always use certified refrigerant recovery and charging equipment. Replace O-rings and seals whenever the line is removed. Use the manufacturer-specified lubricants and refrigerant type for the vehicle (check vehicle documentation). Perform a vacuum hold test before charging and leak-check connections after assembly. If you lack the required A/C service tools or experience, have the replacement performed by a qualified workshop.
Most Common Failure Causes
Typical reasons for pipe failure include corrosion from road salt or moisture, mechanical damage from road debris or improper jack/supporting, deterioration of O-rings and seals leading to slow leaks, and stress or fatigue at bracket mounting points due to vibration. Improper installation or reusing old seals can also cause premature leaks.
