Mercedes-Benz GLC Trouble Codes, Symptoms & Recalls
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Common check engine codes on the Mercedes-Benz GLC
- P0420 — Catalyst System Efficiency Below Threshold (Bank 1)
- P0300 — Random/Multiple Cylinder Misfire Detected
- P0171 — System Too Lean (Bank 1)
- P0442 — Evaporative Emission System Small Leak Detected
- P0455 — Evaporative Emission System Large Leak Detected
- P0128 — Coolant Temperature Below Thermostat Regulating Temperature
- P0401 — EGR Insufficient Flow Detected
- P0440 — Evaporative Emission Control System Malfunction
- P0301 — Cylinder 1 Misfire Detected
- P0174 — System Too Lean (Bank 2)
Common Mercedes-Benz GLC symptoms
- Mercedes-Benz GLC car shaking when braking
- Mercedes-Benz GLC brakes squealing when stopping
- Mercedes-Benz GLC check engine light on
- Mercedes-Benz GLC car won't start
- Mercedes-Benz GLC car overheating
- Mercedes-Benz GLC car loses power when accelerating
- Mercedes-Benz GLC car running or idling rough
- Mercedes-Benz GLC white smoke from exhaust
- Mercedes-Benz GLC blue smoke from exhaust
- Mercedes-Benz GLC battery light on while driving
- Mercedes-Benz GLC car pulls to one side
- Mercedes-Benz GLC car ac not blowing cold
Maintenance & recalls
Mercedes-Benz GLC maintenance resources · Mercedes-Benz GLC NHTSA recalls & complaints