Description
Air Conditioning Tube For PEUGEOT 308, 3008, 5008, RCZ And CITROËN C4, C4 PICASSO
This Air Conditioning Tube Is A Direct Replacement Designed For Peugeot And Citroën Models. Supplied With OE Reference Numbers 9684310980 / 6477G6 (Also Found As 6477.G6), It Restores Proper Refrigerant Flow And Ensures Reliable Climate Control Performance. Ideal For Professional Workshops And Experienced DIY Mechanics Looking For An Exact-Fit Cooling System Component.
Technical Information
- Manufacturer: Stellantis
- Model: Peugeot 308; Peugeot 3008 (I); Peugeot 5008 (I); Peugeot RCZ; Citroën C4; Citroën C4 Picasso
- Product Codes: 9684310980, 6477G6
- Additional Numbers: 6477.G6
Function
The Tube Carries Refrigerant Between Air Conditioning System Components, Helping To Transfer Heat Away From The Passenger Compartment. It Maintains Correct Flow And Pressure Paths Within The Circuit, Contributing To Efficient Cooling And Stable System Performance.
Common Failure Causes
Air Conditioning Tubes Usually Last Many Years But Can Fail Due To Corrosion From Road Salt, Mechanical Damage From Debris Or Improper Mounting, Chafing Against Adjacent Components, Or Sealing Failure At Connectors (Degraded O-Rings). Leaks Are The Typical Symptom, Often Evidenced By Loss Of Cooling, Oil Residue Around Fittings, Or Audible Hissing With The System Pressurised.
Replacement Procedure
- Recover Refrigerant Using Certified Recovery Equipment (Required By Law In Many Regions).
- Depressurise And Remove Any Retaining Clips, Brackets, Or Fasteners Securing The Tube.
- Disconnect Fittings Carefully; Inspect And Replace O-Rings/Seals With Correct Size And Material.
- Install The New Tube In The Original Routing, Secure Clamps And Fasteners, And Ensure No Contact With Moving Parts.
- Perform A Vacuum Drying Procedure To Remove Moisture And Check For Leaks (Recommended Leak Test Methods: Electronic Leak Detector Or UV Dye).
- Recharge The System With The Correct Type And Amount Of Refrigerant And Oil Per Manufacturer Specifications.
- Run The System And Verify Operating Pressures, Temperature Drop, And Absence Of Leaks.
Installation Recommendations
- Always Replace O-Rings With New Ones Lubricated Using The Correct Refrigerant Oil (PAG Type Where Specified).
- Replace Receiver/Drier Or Accumulator If The System Has Been Opened To The Atmosphere To Avoid Moisture Contamination.
- Use Proper Tools And Certified Refrigerant Recovery/Charging Equipment—This Job Is Recommended For Professionals Or Experienced DIY Mechanics With Appropriate Gear.
- Secure All Lines To Factory Routing To Prevent Chafing; Inspect Nearby Components For Damage.
- After Installation, Perform A Leak Test And Verify System Cooling Performance Under Load.
Why This Part
This Tube Matches OE References And Is Manufactured To Fit Peugeot/Citroën Air Conditioning Systems Precisely. Using The Correct Tube Reduces Service Time, Minimises The Risk Of Recurring Leaks, And Restores Passenger Comfort Quickly—Important For Busy Workshops And DIY Enthusiasts Looking For Reliable, Searchable Parts (Search Terms: “9684310980”, “6477G6”, “Peugeot 308 AC Tube”, “Citroën C4 AC Pipe”).
If You Service Climate Systems Regularly, Keep Replacement O-Rings And Proper Refrigerant Oil On Hand To Speed Up Repairs And Ensure A Long-Lasting Seal.







