2022 Volvo XC40 P0455: Large EVAP Leak Repair

Tracking P0455 on Your 2022 Volvo XC40

A P0455 on your 2022 XC40 indicates a large EVAP leak. The B4/B5 turbo on Volvo's CMA platform uses Volvo's EVAP system. Your warranty runs through 2026.

Clues

• Check engine light on
• P0455 stored
• Possible fuel smell
• Gas cap not seating

Suspects Ranked

1. Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$30.
2. EVAP Purge Valve (Medium Likelihood): Volvo solenoid. $150–$320 installed.
3. Canister Vent Valve (Medium Likelihood): Sticking. $140–$300 installed.
4. Charcoal Canister (Low-Medium Likelihood): Saturation. $280–$500 installed.
5. Vapor Line (Low Likelihood): Connection issue. $120–$260.

Diagnosis

Gas cap first. Drive 2–3 days. If P0455 returns, your Volvo dealer with VIDA or a smoke test will locate the leak.

Warranty

Volvo's 4yr/50k warranty runs through 2026. Federal emissions (8yr/80k) covers EVAP through 2030.

Safe to Drive?

Yes. P0455 doesn't affect the turbo engine, AWD, or any features.

Frequently Asked Questions