Description
Air conditioning pipe for Peugeot 308, 3008, 5008, RCZ and Citroën C4, C4 II, C4 Picasso
This used air conditioning pipe is a direct-fit component designed for a range of Peugeot and Citroën models. It replaces damaged or leaking refrigerant lines in the vehicle HVAC system and is suitable for professional workshops and experienced DIY mechanics who maintain Stellantis vehicles. The part carries refrigerant between system components and is supplied with original-style connections to match factory routing and fittings.
Application And Compatibility
Compatible with multiple Peugeot and Citroën models including:
- Peugeot 308
- Peugeot 3008 (first generation)
- Peugeot 5008 (first generation)
- Peugeot RCZ
- Citroën C4
- Citroën C4 II
- Citroën C4 Picasso
Function And Benefits
The air conditioning pipe routes refrigerant between major HVAC components (compressor, condenser, evaporator, receiver/drier or accumulator). A properly fitted pipe ensures leak-free operation, correct system pressures and effective cabin cooling. Using a correctly shaped replacement restores factory routing, prevents chafing and maintains system reliability.
Technical Information
- Manufacturer: Stellantis (Peugeot / Citroën)
- Model: Peugeot 308, 3008 I, 5008 I, RCZ; Citroën C4, C4 II, C4 Picasso
- Product Codes: 9684368380, 9831991080, 9819864880, 6477F4
- Other Numbers: Common OEM references used across Stellantis parts catalogs (see product codes above)
How The Part Is Replaced
- Recover refrigerant using certified A/C service equipment before any disassembly.
- Gain access to the line by removing necessary engine covers or dash panels as required for the specific model.
- Disconnect fittings and quick-connects; replace all associated O-rings and seals with new parts lubricated with the correct refrigerant oil.
- Fit the replacement pipe, secure clamps and brackets to original mounting points to avoid vibration and chafing.
- Evacuate the system to remove moisture, then recharge and charge to manufacturer-specified pressures and refrigerant oil quantities.
- Perform a leak test and functional check of the HVAC system (cooling performance, pressure readings).
Installation Recommendation
Recommended to be performed by a trained technician or an experienced DIYer with proper automotive A/C equipment. Always recover and store refrigerant legally with certified recovery/recharge machines. Replace O-rings and seals whenever the line is disturbed to ensure a reliable seal. After installation, evacuate and recharge the system to the vehicle manufacturer’s specifications and check for leaks and correct pressures. For safety and to avoid electrical faults, follow standard workshop practice (e.g., disconnect non-essential power if required by the repair procedure) and consult the vehicle service manual for model-specific steps.
Most Common Reasons For Failure
- Corrosion and galvanic attack on metal sections, especially in regions with road salt or high humidity.
- Chafing or mechanical damage where the line contacts brackets or other components, often caused by broken or missing clips.
- Brittleness and cracking of plastic connectors or hoses due to age and heat cycles.
- Leaking at fittings because of degraded O-rings or improper assembly.
- Indirect failures from system contamination (moisture, debris) or blocked dryer/accumulator causing pressure spikes and stress on lines.
Symptoms Of A Faulty Pipe
- Poor cooling performance or intermittent cooling.
- Visible oil traces or refrigerant residue around joints or along the pipe.
- Hissing or bubbling sounds from the HVAC compartment under pressure.
- Pressure readings out of specification during service checks.
Using the correct replacement pipe and fresh sealing materials restores system integrity and helps avoid repeated service visits. Check the listed product codes to match the pipe to your vehicle’s configuration and routing requirements before installation.
