The 2015 M-Class is more reliable than other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2015 Mercedes-Benz M-Class owners. The owner comments describe problems respondents experienced with this vehicle.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"Requires a new radiator"
Anonymous, IN (2015 Mercedes-Benz M-Class ML400 3.0-L V6 turbo)"Coil replacement & spark plug"
Anonymous, OH (2015 Mercedes-Benz M-Class ML350 3.5-L V6)Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
"Intermittent. Service facility replaced Ignition Coil and spark plugs for Cylinder 1. Problem solved"
Anonymous A., AZ (2015 Mercedes-Benz M-Class ML350 3.5-L V6)"Don't know when it started. Decetd during checkup"
Anonymous, VA (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)""When the service facility was resolving the knocking issue (previously discussed), they discovered an oil leak coming from the seals of the upper timing covers. They cleaned the area of the oil leak, and resealed the front covers with new seals, bolts and sealant.""
Anonymous A., AZ (2015 Mercedes-Benz M-Class ML350 3.5-L V6)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
"Specifically the camshaft cover gaskets leaking oil"
Anonymous, TN (2015 Mercedes-Benz M-Class ML350 3.5-L V6)"One time the sensor. Failed"
Anonymous, (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
"Clings into lower gear when down shifting"
Anonymous, PA (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)"when fixing the module problem they determined that the fluid pan was too badly corroded and had to be replaced."
Anonymous, ON (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)Transmission rebuild or replacement, torque converter, premature clutch replacement.
"Some type of module failed and I could not put the car in gear and the pan had to be replaced as it was badly corroded."
Anonymous, ON (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
"Multiple o2 sensor replacements"
Anonymous, PA (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
"Water pump leak"
Anonymous, VA (2015 Mercedes-Benz M-Class ML250 BlueTec 2.1-L 4 Cyl diesel)AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.
Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.
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"Leaking head gasket"
Anonymous, FL (2015 Mercedes-Benz M-Class ML350 3.5-L V6)