Mercedes-Benz GLC-Class Complaints

782 consumer complaints on file.

#11447380January 13, 2022
WHEELS
The contact owns a 2020 Mercedes Benz GLC300. The contact stated that while driving at approximately 60 MPH, the front of the vehicle was vibrating and shaking violently. The vehicle was taken to the dealer where they informed the contact that the tires were balanced and needed to be rotated. The vehicle was repaired however, a month later the failure persisted. The vehicle was taken back to the dealer where it was diagnosed that the rear tires needed to be replaced. The vehicle was repaired but a few months later the failure recurred. The vehicle was taken back to the dealer where it was diagnosed that the front tires were worn unevenly and a four-wheel alignment was needed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 450.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446666January 7, 2022
STRUCTURE:BODY
On 12/23 I was driving away from home for holiday, and my panoramic sunroof exploded. I was quite shaken as glass was everywhere, in hair, on me and of course in car. I suffered very minor cuts. Called Mercedes SOS. Mercedes customer care. Advised me to go to local dealer near home. 2019 GLC300W4 with ~26,890 miles at time of accident. Dealer, West Chester MB without looking said $10,484. Not under warranty because of year and miles. I see that in March of 2021, about 17,000 vehicles were recalled for sunroof problems, just not my specific model. Clearly, there is a problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445381December 29, 2021
STEERING, SUSPENSION, WHEELS
When driving at 40 to 60 MPH and hit shallow pot hole or bump in the road the front wheels violently shake and the steering wheel (electric steering) violently vibrates for 5 to 8 seconds. Dealer checked the vehicle and claims there is nothing wrong with it but did turn off the "attention assist" setting from sensitive setting claiming it was the cause. The issue still exists but not as violent. I'm concerned of loosing control of the car/my safety. FYI: never experienced this issue with my previous car (same car two years older ,2020 GLC 300).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443455December 11, 2021
STEERING
The steering column has stopped moving up/down. I guess due to some latency build up (after having tried to adjust the steering a few times prior to the drive) caused the steering to move down (one time incident) while driving and caused momentary loss of steering control due to slippage and had to pull over to the shoulder of the freeway. While this was a one time incident it could become a safety issue...this seems to be a rampant issue (up/down movement getting jammed) on all MB vehicles and anything related to critical vehicular controls should be flagged as such.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443463December 11, 2021
POWER TRAIN, ELECTRICAL SYSTEM, ENGINE
I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11441952November 29, 2021
BACK OVER PREVENTION, ELECTRICAL SYSTEM
The contact owns a 2021 Mercedes-Benz GLC300. The contact received a recall notification for NHTSA Campaign number: 21V354000 (Back Over Prevention, Electrical System). The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The part was not available for the repair. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11435021September 30, 2021
UNKNOWN OR OTHER
I have received recall notice 3 months ago for software update. The update was supposed to happen over the air which it didn't. I need this update to finish asap because i need a recall clearance letter. This update took way too longer than it should have. Please solve this issue for me. Regards,
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11434831September 29, 2021
UNKNOWN OR OTHER
I hydroplaned when driving in rainy weather and slid across freeway. Apparently break assist activated and automatically applied break. The car spun around and hit concrete barrier and then slid again across the freeway. At that point, a message was on display reading Collision Prevention Assist Plus Inoperative See Owners Manual. My vehicle had power but wouldn’t respond to the gas pedal and would not accelerate. I was unable to move vehicle out way of oncoming traffic. Luckily no one hit me and police arrived to divert traffic away from me. I turned vehicle off and on again but still was not able to move vehicle. I couldn’t even shift gear to neutral. Don’t appear to be much damage to front of car but the way the tires were turned indicate a suspension issue. I am waiting on quote.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11434738September 28, 2021
ENGINE
The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that while his wife was driving at an undisclosed speed, the "Add 1 quart of oil" message was illuminated. The contact's wife did not pull over and continued driving while the "Stop driving" warning message was illuminated. The contact's wife was able to drive to the residence. The contact noticed there was a quart of oil on the floor from the engine compartment and detected a burning oil odor. The vehicle was towed to the dealer and the dealer replaced the O-ring. The vehicle was repaired but remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was unavailable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433783September 21, 2021
ENGINE, ELECTRICAL SYSTEM
At around 11pm on Monday, Sept 20, 2021 I was driving approximately 65 mph on the highway when the vehicle began to abruptly decelerate for no apparent reason, even when I was pushing on the accelerator pedal. When I would push on the accelerator I could hear the engine revving, I confirmed the car was in the Drive gear but the vehicle began to lose speed rapidly and no matter what action I took the car was only slowing down and had to quickly find an emergency area to pull over. My vehicle is available for inspection. This incident was a very scary situation that put my life and others at risk. I was on a two lane highway in a construction zone and there was no shoulder available to pull off safely. There were tractor trailers that had to swerve to avoid rear ending me in the roadway and I was afraid I was going to be involved in a major accident. In the end I was able to pull into a break in the Jersey barrier to get out of the lane of travel. I have a young baby and do not want to take my child in this car now for fear of it happening again. I had noticed a hesitation in the vehicle before but this is the first time this issue has happened where the car would not accelerate. I am taking the car into the dealer to see if there are any diagnostic codes and it has not been inspected by anyone. Additionally there were no warning lights, no tones, no check engine lights or anything to warn of the situation before or while it was happening. From the inside of the vehicle the car appeared to be normal but it was not clearly given the lose of power and rapid deceleration.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433450September 18, 2021
FUEL/PROPULSION SYSTEM
My MB GLC 300 has run out of gas three times. The first two times the car showed it still had 40 miles before fill up and the gas warning light never came on. I took the car in for repair to see if the Fuel level sending unit had stopped working or the float was stuck. The date was March 2020 and at that time the car was under warranty. I was told to make sure I filled up the tank when the fuel indicator reached 100 miles. I was told by the dealer there was nothing wrong and the service department had run a diagnostic. I had never been told that I needed to fill up when a car gauge read 100 miles. Thirty or forty maybe but 100 seemed odd. Two weeks ago I had the gas leak repaired which was the result of the class action law suit. Yesterday I again ran out of gas again. The gas gauge showed 3 bars and 100 miles before next fill up. No gas low warning light came on. I was able to get a friend to bring a gallon of gas so I could drive somewhere to fill up. After I filled the gas tank the gas gauge completely stopped working. The miles to fill up is zero. I have tried resetting the ODM and have checked all the fuses related to the gas tank. This could have been a dangerous situation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11433403September 17, 2021
SERVICE BRAKES
The contact owns a 2019 Mercedes Benz GCLCLASS. The contact stated that the brake system failed. The contact stated when driving at 25mph when the brake pedal was engaged the brake pedal went to the floorboard the vehicle crashed a pole and came to stop. there were no warning lights before during or after the failure occurred. The vehicle was towed to a mechanic shop. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 10,000.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11431621September 3, 2021
VEHICLE SPEED CONTROL, ENGINE
The contact owns a 2021 Mercedes-Benz GLC300. The contact stated while driving at various speeds, the vehicle hesitated to accelerate while the accelerator pedal was depressed. The contact stated there was no warning light illuminated. The vehicle was taken to a local dealer but was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 7,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11429741August 19, 2021
UNKNOWN OR OTHER
Manufacturer Recall Number2021060021 NHTSA Recall Number21V354 Mercedes dealership said they're unable to complete this recall, and it must be done via OTA update. Vehicle has no OTA update available, Mercedes refused to push update when requested, and could provide no information on when an OTA update would be available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11426408July 26, 2021
UNKNOWN OR OTHER
check engine light appears, car runs fine. the crankcase vent value was broken on our 2017 GLC300 car. a mechanic, with a computer, ran the codes and shared this happens many times to this car. the service advisor at mercedes shared the same input. happens all the time and should be covered under emissions warranty but isn't. this disfunction does not affect driving of car, just emission and (sales pitch to fix it) "could" affect engine in long term. i suspect this is a defective piece in the system that mercedes won't address or cover under emissions warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424052July 9, 2021
UNKNOWN OR OTHER, STRUCTURE:BODY
Excessive frame rust, the pictures I included are all the patches that have been done to the frame so far.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11424110July 9, 2021
VISIBILITY/WIPER
On day zero when I bought the car, it was raining. The new car wiper was shattering or making bumpy movements. It was not cleaning the heavy rain water or it was spotty. The Mercedes mechanic told it is a known issue and there is no permanent fix. They just changed the wiper blade and put solvent on windshield which may be good for few days/weeks and need to take the car everytime, I have this issue till I have warrantee. This is very annoying and safety issue in Houston rainy season. It can happen anytime in the middle of busy road and under rain.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11422863June 29, 2021
AIR BAGS
I was involved in a minor collision with a deer. I was driving alone and the deer hit my front passenger side. The airbags deployed. The knee bag completely destroyed the flesh on my entire right shin. It is one giant open wound that will take months to heal. I am short so I sit close to the dash. Had this knee bag not deployed I would have no injuries from the incident. The main airbag caused no damage so I feel I sit far enough away from that one. I am now scared to drive a vehicle with knee bags for fear of a repeat injury. I believe the knee bag is not safe for shorter people.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11421457June 19, 2021
FUEL/PROPULSION SYSTEM
Entered parked vehicle and noticed very strong gas fumes. Vehicle would not start. Looked under the vehicle and noticed very large quantity of gasoline on the ground. Vehicle was towed to Mercedes dealership in Rochester, Michigan. Diagnosis was an incorrectly installed fuel line bracket. New bracket was installed and problem was corrected.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11421354June 18, 2021
FUEL/PROPULSION SYSTEM, SUSPENSION, SERVICE BRAKES
Often after starting the car, inside the car there is a gas smell that we have to closed the vents as it becomes unhealthy until the smell goes away, it last up to 10 minutes. I have taking the car to my mechanic who specializes on Mercedes and could not find any leaks and/or anything wrong. My other issue is that during the raining season when I put my foot on the breaks it makes this loud sound like an airplane landing that I have to release and press and release and press so the car will slow down. My mechanic have done multiple inspections and finds nothing wrong. My third issue is the suspension, driving on freeways at speeds over 55 mph I feel a lot of shaking between front wheels and I can feel every single bump. Again, my mechanic has found nothing wrong that even checked for recalls and has told me that there are no recalls for this vehicle. Obviously there has to be a recall issue and the one more concerning is the gas smell inside the car at start up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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