Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.
vehicle
2018 / mercedes-benz / glc-class
known issues
8 clusters (reviewed 2026-07-30)
complaints
99 on file (2018-02-02 → 2026-07-30)
recalls
0
investigations
0
fars
11 occupant deaths, crash years 2010-2024 (legacy-code)
11499373 Check engine light came on with code P052E : Positive Crankcase Ventilation Regulator Valve Performance
11527424 At 35,000 miles the check engine light came on, error message was checked at a Mercedes dealership and read a Crankcase Vent Valve malfunction. The malfunction causes issues with acceleration and causes a high RPM idle and accelerates engine wear
11571765 I have had to replace the faulty pcv valve in my vehicle every 11 months since I have owned it. At over $1,000 a piece and with this being a well known problem with this make of vehicle the company needs to fix this problem
Transmission shifting into Neutral while drivingPOWER TRAIN10 complaints2018-10 → 2025-12glc-class-2018-transmission-neutral-shift
11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation
11676731 The car does not go into drive from reverse and will sometime automatically shift itself from a low drive gear (D1) into Neutral without warning. After this happens - the car also can't get back into D1
11621613 Transmissiongoes into neutral while driving car at times. sometimes it will not go back into gear No movement of car on freeway potential of being hit from behind
Panoramic sunroof shattering or trim panel detachmentSTRUCTURE9 complaints2018-12 → 2026-03glc-class-2018-panoramic-sunroof-shatter
11531489 My panoramic sunroof shattered while I was driving on the highway. There was a loud, sonic noise, like a gunshot and the glass shattered. There were no large trucks near me and after checking the roof, there was no object on the roof that could have caused it
11514023 Driving at 70MPH on interstate and glass on top of roof in front of sunroof became separated and flew off of car. Part appears to be named Cover OSR
11163043 WAS DRIVING DOWN HIGHWAY DURING CLEAR SUNNY DAY ON 12/21/18 AT ABOUT 2:30 PM ON I-10 EAST JUST OUTSIDE OF HOUSTON WHEN MY SUNROOF SUDDENLY EXPLODED OUTWARD. NO SIGNS OF ANY DEBRIS BEING FLUNG UP OR STRIKING SUNROOF AND THERE WERE NO VEHICLES CLOSE TO US AT THE TIME
Rear seat belt latch plate retraction and buckle warningsSEAT BELTS8 complaints2018-05 → 2024-05glc-class-2018-seat-belt-latch-retraction
11568507 Rear seat belt latch plates (both driver and passenger side) retracted into the rear side paneling behind the seat. Both seat belts are now unusable. Issue occurred after rear seats were folded flat and then returned to upright position
11482285 While driving and front driver seatbelt fastened, the seat belt unfastened warning will intermittently go on and off tightening the seat belt, as if first starting the car. This has occurred for several weeks now
11555185 Complete engine failure after 55,000 miles determined that there was a broken piston #1 in the car. This required a complete engine replacement
11741952 Component Failure: The vehicle is equipped with the M274 2.0L turbocharged engine, which suffered a major internal mechanical defect
Brake squeal and grinding noise at low speedSERVICE BRAKES5 complaints2018-02 → 2019-12glc-class-2018-brake-squeal
11157119 THE BRAKES SQUEAL VERY LOUD AND I AM CONSTANTLY HAVING TO BRAKE HARD SEVERAL TIMES TO MAKE THIS NOISE TEMPORARILY GO AWAY
11096619 BREAKS CONTINUALLY SQUEAK IN REVERSE ON COLDER MORNINGS AT SLOW SPEEDS. EVEN IF THE CAR WARMS UP FOR SEVERAL MINUTES, THE LOUD SQUEAKING DOES NOT STOP
Steering wheel clock spring failure with air bag warningAIR BAGS6 complaints2020-10 → 2025-11glc-class-2018-clock-spring-airbag-warning
11535378 All of the buttons on my steering wheel including the horn stopped working. I hear a clicking noise when i turn the steering wheel and the passenger air bag light randomly goes on and off. This leads me to believe the clock spring is broken
11475794 While driving my SUV, I turned a corner and I heard and felt a wire or wires pull and snap inside the steering wheel. I then found that I could not operate any of the controls on the steering wheel and the driver side airbag light came on with a disabled message on the display
Unintended acceleration during parking maneuversVEHICLE SPEED CONTROL3 complaints2020-01 → 2025-09glc-class-2018-unintended-acceleration
11687525 While pulling into a parking spot with my foot hovering above/on the break, the car lurched forward as if someone had floored the gas pedal
11349114 WHEN I WAS PULLING INTO A PARKING SPOT AT A LOW SPEED, THE CAR ACCELERATED AND LURCHED FORWARD, HITTING A WALL, WHICH DEPLOYED THE AIRBAGS. WHEN THE CAR STARTED TO ACCELERATE, I HIT THE BRAKES BUT THEY DID NOT ENGAGE
FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.
Cite this
Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.
Wrench.Pro (2026). 2018 Mercedes-Benz GLC-Class vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2018/mercedes-benz/glc-class
@misc{wrenchpro_2018_mercedes_benz_glc_class_2026,
author = {Wrench.Pro},
title = {Wrench.Pro vehicle data: 2018 Mercedes-Benz GLC-Class},
year = {2026},
howpublished = {\url{https://www.wrench.pro/data/vehicles/2018/mercedes-benz/glc-class}},
note = {Derived from NHTSA public records. CC BY 4.0.}
}
