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What 52 owners told NHTSA about the 2013 Mercedes-benz GLC

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (52)Crash / fire / injury (7)Engine (15)Electrical system (12)Transmission & drivetrain (9)Suspension (6)Seats (5)Brakes (4)Fuel system (4)Steering (4)Airbags (3)Electronic Stability Control (esc) (3)

2 of 52 complaints match · Engine · crash/fire/injury only · clear filters

May 15, 2019Transmission & drivetrainEngineFuel system1 injury

OIL LEAK PERSISTENT FROM OIL COOLER IN DIESEL BLUETEC ENGINE SPRAYING OIL OUTSIDE GASKET ONTO FUEL LINES, OIL PAN, AND ONTO THE GROUND EMITTING HIGH LEVEL OF SMOKE WITH TARRY BURNT TOXIC NOXIOUS CHARCOAL SMELL FUMIGATING THROUGH THE CABIN AND OUTSIDE WITH VISIBLE BLUE SMOKE WHILE DRIVING MODERATE TO LONG DISTANCES. BLACK TARRY RESIDUE LEAKAGE VISIBLE ON DRIVEWAY AND STREET UNDERNEATH CAR WHEN PARKED OVERNIGHT OR FOR SHORT TIME WITH PAN LEAKED.

NHTSA ODI 11207874

Jul 3, 2018Transmission & drivetrainEngineFuel systemFire1 injury

OIL LEAK PERSISTENT FROM OIL COOLER IN DIESEL BLUETEC ENGINE SPRAYING OIL OUTSIDE GASKET ONTO FUEL LINES, OIL PAN, AND ONTO THE GROUND EMITTING HIGH LEVEL OF SMOKE WITH TARRY BURNT TOXIC NOXIOUS CHARCOAL SMELL FUMIGATING THROUGH THE CABIN AND OUTSIDE WITH VISIBLE BLUE SMOKE WHILE DRIVING MODERATE TO LONG DISTANCES. BLACK TARRY RESIDUE LEAKAGE VISIBLE ON DRIVEWAY AND STREET UNDERNEATH CAR WHEN PARKED OVERNIGHT OR FOR SHORT TIME WITH PAN LEAKED.

NHTSA ODI 11105432

Working with the data? Download all 52 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2013 Mercedes-benz GLC verdict →