Description
Gasoline vapor absorber for Citroën and Peugeot vehicles
The Active Charcoal Filter (EVAP Canister) for Citroën and Peugeot is designed to capture and store fuel vapors from the fuel tank, preventing hydrocarbon emissions and ensuring correct operation of the evaporative emissions system. This replacement part is suitable for professional workshops and experienced DIY mechanics who service Stellantis group vehicles and need a direct-fit solution to restore proper EVAP function.
Application And Compatibility
Commonly fitted to models such as Citroën C4 (including C4 II) and Peugeot 308. Frequently searched under part codes 1502H6 or 1502.H6 and associated with EVAP fault codes like P0441, P0443 and P0446. Always match the physical shape and hose/electrical connections to the vehicle before installation.
How It Works
The charcoal canister contains activated carbon that adsorbs fuel vapors from the tank. When conditions demand, the purge valve opens and the engine draws the stored vapors into the intake to be burned. The canister forms a key part of the EVAP circuit together with the purge solenoid, vent valve and associated hoses.
Typical Symptoms And Fault Codes
- Check Engine Light illuminated with EVAP-related codes (commonly P0441, P0443, P0446).
- Failed emissions test due to EVAP leaks or improper purge flow.
- Noticeable fuel odor around the rear of the vehicle in cases of a cracked or saturated canister.
Installation Recommendations
- Work On A Level Surface And Secure The Vehicle On Jack Stands If Accessing The Underside.
- Relieve Any Residual Pressure In The Fuel/Vapor Lines Before Disconnecting Hoses.
- Disconnect Electrical Connectors For Purge/Vent Solenoids Where Applicable And Label Hose Positions To Avoid Mistakes.
- Replace Any Brittle Hoses Or Worn Clamps During Reassembly; Use New Clamps To Ensure Leak-Free Connections.
- After Installation, Clear Stored Fault Codes With An OBD-II Scanner And Perform A Drive Cycle Or EVAP Test To Confirm Proper Operation.
- If The Purge Or Vent Solenoids Are Faulty, Replace Them At The Same Time To Avoid Repeat Failures.
Why This Part Most Commonly Fails
Charcoal canisters typically fail because the activated carbon becomes saturated or contaminated (for example by liquid fuel when tanks are overfilled), or because the plastic housing develops cracks from age, heat or mechanical impact. Blocked internal passages or clogged purge lines and failed solenoids can also make the system report incorrect purge flow or venting faults.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4; Citroën C4 II; Peugeot 308
- Product Codes: 1502H6; 1502.H6
- Additional Numbers: P0441; P0443; P0446
Notes For Mechanics And DIYers
This part is intended as a direct-replacement evaporative emissions canister. When replacing, inspect the entire EVAP plumbing (hoses, purge valve, vent solenoid and tank fittings) for damage or contamination. Proper sealing and correct routing of vapor lines are essential to prevent recurring fault codes and to maintain emissions compliance.
