Mercedes GLC 220d OM654 EGR Valve Fouling
Mercedes-Benz
GLC
2015
OM654 2.0 CDI
Safe to Drive?
✅ Safe to Drive
Urgency Level
🟡 Monitor Closely
The OM654 diesel in GLC 220d can develop EGR fouling above 100,000 miles. Lower rate than older OM651 but still a maintenance item. Cleaning costs £150-280.
Repair / Solution
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