Description
Air Conditioning Pipes For Citroën Berlingo III And B9 Peugeot Partner III
Direct-fit air conditioning pipe designed for Citroën Berlingo III and Peugeot Partner III (B9). Supplied with OE reference codes 9681693180 / 6477C9, this pipe restores proper refrigerant flow between compressor, condenser and evaporator connections and helps the climate system regain full cooling efficiency. Robust construction and factory-style fittings make it a reliable choice for professional garages and experienced DIY mechanics looking for a precise replacement part.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën Berlingo III; Peugeot Partner III (B9)
- Product Codes: 9681693180, 6477C9
- Additional Numbers: OE References 9681693180 / 6477C9
Compatible Models
Fits Citroën Berlingo III and Peugeot Partner III (B9) variant vehicles that use the referenced OE part numbers. Often searched for by the part numbers 9681693180 and 6477C9.
Function And Typical Symptoms
This pipe is part of the air conditioning refrigerant circuit and ensures leak-free transfer of refrigerant and lubricant between major components (compressor, condenser, evaporator, dryer/accumulator). When this pipe fails, common symptoms include reduced cooling performance, visible oil or refrigerant stains at joints, hissing or bubbling noises from the AC system and eventual loss of refrigerant pressure.
Replacement Procedure
General replacement steps for experienced technicians or equipped DIYers:
- Recover refrigerant using certified R&R equipment in accordance with environmental regulations.
- Remove any obstructing components to access pipe fittings.
- Carefully disconnect fittings; inspect and replace O-rings and sealing surfaces.
- Fit the new pipe, ensuring correct routing and secure fastening to prevent rubbing or strain.
- Evacuate the system with a vacuum pump, perform a leak test, then recharge with the correct type and amount of refrigerant and lubricant as specified by the vehicle manufacturer.
- Perform functional check: run the AC system, verify pressures, temperature drop and absence of leaks.
Installation Recommendations
- Always replace O-rings and apply the correct refrigerant oil (PAG or manufacturer-specified) to new seals before assembly.
- Use proper recovery, evacuation and charging equipment; do not vent refrigerant to atmosphere.
- Inspect nearby components (receiver/drier, compressor clutch, condenser) and replace the receiver/drier if the system was open to the atmosphere or contaminated.
- Avoid kinking or excessively bending the new pipe; secure with original clips and brackets to prevent vibration wear.
- Follow vehicle manufacturer torque values for fittings and consult the repair manual for any model-specific steps.
Why This Part Typically Fails
Most failures are caused by age-related seal deterioration, corrosion (especially in regions with road salt), mechanical damage from road debris, vibration fatigue where the pipe contacts other components, or poor previous repairs and reused seals. Leaks commonly occur at connection points and O-rings rather than in the pipe body itself.
Notes For Professionals
Part numbers 9681693180 and 6477C9 are commonly used in workshop searches — listing these numbers in diagnostics and work orders speeds up identification. This replacement pipe is intended for technicians familiar with AC service procedures; if you are not equipped with recovery and charging tools, have the work performed at a properly equipped workshop.
Recommendation For Assembly
Use new seals, follow manufacturer specifications for refrigerant and oil type, perform vacuum and leak tests after installation, and verify correct system pressures and cooling performance before returning the vehicle to service.
