Investigating P0455 on Your 2024 BMW X5
A P0455 on your 2024 X5 (G05 LCI) means the DME detected a large EVAP leak. Whether you have the 40i inline-6 or 50e plug-in hybrid, gas-powered models all have EVAP systems. Full warranty coverage applies.
Symptoms
- Check engine light with P0455
- Possible fuel smell
- Gas cap not seating
- EVAP monitor incomplete
Top Causes
- Gas Cap Seal (Very High Likelihood): Loose or factory defect. Warranty-covered.
- EVAP Leak Detection Pump (Medium Likelihood): BMW LDP. Warranty-covered.
- Purge Valve (Medium Likelihood): Manufacturing issue. Warranty-covered.
- Fuel Tank Vent Valve (Low Likelihood): Factory defect. Warranty-covered.
- DME Software (Low Likelihood): Calibration update. Warranty-covered.
What to Do
Tighten the gas cap and drive 2–3 days. If P0455 persists, visit your BMW dealer for free warranty repair.
Warranty
Your 2024 X5 is covered by BMW's 4-year/50,000-mile warranty through 2028. Federal emissions (8yr/80k) extends through 2032.
Safe to Drive?
Yes. P0455 doesn't affect the engine, xDrive, air suspension, towing, or any features.