P0455 on Your 2024 Mercedes-Benz GLE
A P0455 on your 2024 GLE (W167) means the ECU found a large EVAP leak. Whether you have the GLE 350 (2.0L turbo) or GLE 450 (3.0L turbo inline-6), full warranty coverage applies. Gas cap first.
Symptoms
- Check engine light with P0455
- Possible fuel smell
- Gas cap not seating
- EVAP readiness incomplete
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or factory defect. Warranty-covered.
- EVAP Purge Valve (Medium Likelihood): Manufacturing issue. Warranty-covered.
- Leak Detection Pump (Medium Likelihood): Mercedes LDP. Warranty-covered.
- Fuel Tank Vent Valve (Low Likelihood): Factory defect. Warranty-covered.
- ECU Calibration (Low Likelihood): Software update. Warranty-covered.
What to Do
Tighten the gas cap and drive 2–3 days. If P0455 persists, visit your Mercedes dealer.
Warranty
Your 2024 GLE is covered by Mercedes' 4-year/50,000-mile warranty through 2028. Federal emissions (8yr/80k) extends through 2032.
Safe to Drive?
Yes. P0455 doesn't affect engines, 4MATIC, AIRMATIC, towing, or features.