Mercedes-Benz GLC-Class Complaints

782 consumer complaints on file.

#11471238June 27, 2022
ELECTRICAL SYSTEM
I pressed the "Park" button, but the transmission did not go into park. When I let my foot off the break, thinking that I was in Park, the car started rolling backwards. Thank God my wife was in the car and noticed the motion and shouted to me to break the car. I was able to stop the car before hitting anybody or anything, but it was dangerously scary.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470961June 25, 2022
STRUCTURE:BODY, UNKNOWN OR OTHER
Panoramic Sunroof exploded while driving out of the blue. No other cars in front of me or near me. Nothing hit it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470712June 23, 2022
SEAT BELTS
WHILH E DRIVING WITH A PASSANGER IN THE FRONT SEAT, AND PROPERLY BUCKELED UP. THE PASSENGER SEAT BELT WILL RANDOMLY TIGHTEN UP AND THE SEAT BELT LIGHT WILL FLASH ON THE DASHBOARD AND THE SEAT BELT AUDIBLE BELL WILL SOUND, THIS WILL LAST FOR A FEW MINUTES AND THEN STOP FOR A FEW MINUTES THEN START AGAIN. I WENT TO THE DEALER AND GOT THE EARLIEST APPOINTMENT TO GET IT FIXED WHICH IS OVER 30 DAYS AWAY (7-26-22), I ASKED WAS IT STILL SAFE TO DRIVE THE SUV AND WAS TOLD TMHEY BELIVED IT WAS OK BECAUSE IT SOUNDED LIKE A SEATBELT LATCH ISSUE, I HAVE DISCIVERED THERE IS A RECALL FOR THIS PROBLEM BUT NOT MY MODEL YEAR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470529June 22, 2022
ENGINE
While driving on the interstate (65mph) in traffic, there was a sudden loss of power causing deceleration and the inability to maintain speed. A collision was barely avoided both from being rear-ended and from trying to safely move to the shoulder while other traffic passed. A certified mechanic later determined the piston in cylinder 2 broke, the spark plug broke and the piston rings pulled to the top. The mechanic also said, "Replacement of engine required." The vehicle has 52,839 miles (2,839 miles above the 50,000 warranty). There were no warning lamps or messages and no symptoms of the problem prior to the failure. A QUICK INTERNET SEARCH SHOWS THIS IS A COMMON OCCURENCE WITH THESE VEHICLES. WHAT DOES IT TAKE FOR A FORCED RECALL?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470126June 20, 2022
UNKNOWN OR OTHER
I got the P052E error at about 50k miles. Many GLC 300s apparently have this issue. I need a new crank case valve I believe and they put the part in a terrible place. Dealers charging over $1k in just labor.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469978June 19, 2022
ENGINE
1)-The crankcase ventilation valve needs to be replaced. This seems to be common problem with these cars. 2)-No safety issues. 3)-Yes many failures as per the internet reports. 4)-Yes- Mercedes 5)-Unknown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469867June 18, 2022
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER, ELECTRICAL SYSTEM
-I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and information.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469757June 17, 2022
ENGINE
While operating the vehicle at highway speed, the Check Engine Light illuminated on the vehicle dashboard and remained constant. The associated malfunction code(s) displayed were P052E71 (actuator blocked) as well as P06DA00 (electrical-open circuit). The vehicle is available for inspection upon request. The vehicle emitted pungent odor and fumes into the cabin and demonstrated sudden decreased acceleration and rough idling. The problem has yet to be inspected by the manufacturer as it is not sure whether it is safe to operate. No other warning lamps illuminated prior to the failure. Unsure if cold start failure is a symptom associated with current issue or if an electrical problem related to prior recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469607June 16, 2022
ELECTRICAL SYSTEM, ENGINE
This is in reference to a 2020 Mercedes GLC350e Plug-In Hybrid. Sole owner purchased January 2020 with under 4 Thousand miles on the odometer, 3 years extended warranty. Took car only to MB Henderson dealership for service/maintenance performance on the vehicle and nowhere else. Dealership has records. The GLC350e received no recall of any kind. On November 11, 2021, the car coolant alert displayed and instructed to shut engine down, key off of ignition and stop everything -- car was not safe to drive. In contacting MB Henderson, NV dealership, they concurred with the display and asked that the vehicle be towed to their facility for further inspection -- No MB Dealership had the capacity to tow the vehicle to their service facilities. So I called using my own AAA Towing and the dealership received the 2020 GLC350e at their facility. They had it overnight and the next day. After checking everything found they can't reproduce the Coolant warning alert display and said the car was safe to drive. Fast forward to March 8th, 2020 this display resurfaced while driving on Interstate 15 southbound to Los Angeles. Called dealership, and their recommendation was again repeated -- Shut off engine, tow it to the nearest dealership. The locatioin was between Bakers and Barstow, and the nearest MB dealership was in Riverside, CA. This is a desolated area and unsafe to stay or leave the car where it is. With what I learned from the November 12, 2021 service performed by the dealership, they couldn't find anything wrong with the car. I felt it important to get off the freeway and proceed to Barstow and call the Riverside Dealership when I get there. This I did and before reaching Barstow, the car engine started to smoke and the hood bulged up. In seconds the bulge was increasing in size, a sliver of flame appeared. This scared me, so I got out of the car in a hurry, and dialed 911 and the insurance company. The flame got more intense and it was totaled.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11469662June 16, 2022
UNKNOWN OR OTHER
Faulty crankcase vent valve causing oil to leak into electrical lines of engine with car at 42,000 miles. This was confirmed by dealer. Multiple other Mercedes Benz car owners have had this issue with the crankcase vent valve with simple internet search. Fortunately, the car was taken to dealer before any event occurred but this a safety issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11469308June 15, 2022
VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Driving on I75 in Georgia using Distronic speed control. This system scans highway speed control signage and automatically adjusts the vehicle speed based on speed limit signs. Unfortunately the state of Georgia has deployed MINIMUM SPEED 40 signs alongside the highway that are identical in size and appearance to SPEED LIMIT signage. The next result is the car automatically dropping the current speed (say 70 mph) to 40mph with heart stopping effects, particularly in heavy traffic. Turning off the automatic speed control eliminates the problem. This is a major safety flaw that, left unfixed, will results in loss of life.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468506June 9, 2022
UNKNOWN OR OTHER
crankcase ventilation valve replacement required confirmed by the dealer. check engine light came on as notification. It appears to be a very standard problem on the the glc300 when they hit 60,000 miles and are out of warranty. $2000 repair
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11468180June 8, 2022
ELECTRICAL SYSTEM, COMMUNICATION
The contact owns a 2019 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11467113June 2, 2022
VISIBILITY
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the front roof panel between the windshield and sunroof detached from the vehicle. The vehicle was not taken to the dealer and was not repaired. The contact became aware of NHTSA Campaign Number: 17V715000 (Visibility) however, the VIN was not included. The manufacturer was made aware of the failure. The approximate failure mileage was 68,000. Warranty on the car has expired and was told consumer would have to pay for it. Rep said she would talk to other people to see what can be done but she is not making any promises.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11467011June 1, 2022
ENGINE
Was driving on the freeway car started to shake. Speed dropped from 73 to 40 I was thankfully able to merge off the freeway. I stoped to see if there was any visible damage. Everything look normal. Was able to make it home. Husband changed spark plugs and coils. Also bought another small part nothing fixed it. Took it to two different auto shops one being Mercedes. They both confirmed it's a blown engine at 47,000 miles. Unbelievable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466660May 30, 2022
STRUCTURE:BODY, VISIBILITY/WIPER
Sunroof glass panel exploded outward. Fabric retractable interior sunroof liner did contain all of the fragmented safety glass. No prior impact on or to the sunroof. If the interior fabric sunroof liner had been retracted, the interior of the vehicle would have been showered with the glass shards impacting the driver and all passengers. There was no warning. A loud sound similar to gunshot occurred as the sunroof failed. The vehicle was driven to a local windshield repair facility for examination. I contacted and notified Mercedes Benz USA of the incident. They have not done a follow-up as of this date. I contacted Mercedes Benz of Anchorage AK and will do a follow-up with that dealership on May 31 2022.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466618May 29, 2022
SEAT BELTS
Back seat passenger seatbelt will occasionally not latch.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466465May 27, 2022
POWER TRAIN
I was unable to put the car in the drive after pulling out parking spaces or any other instance where the car needed to move. When attempting to put in drive, the car would revert to neutral and drift. Leaving me stuck in the middle of the road or parking lots. Check engine light came on briefly after the car wouldn't go in to drive but disappeared. Took it in to dealer immediately and they indicated that the transmission valve body control unit had failed and needed to be replaced. The car has less than 60k miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11465447May 20, 2022
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, LANE DEPARTURE: ASSIST, LANE DEPARTURE: WARNING
Self driving assist, adaptive cruise , emergency braking assist do not work. Taken to dealer three times , unable to correct. Returned to customer with out paperwork documenting repair of safety systems. Problems are still in I repaired state. Emergency braking system warning message has activated 15-20 times after receiving car back. Other existing problems are still on going as well. Requested District service Manager consult the situation and advise. Love car , want to have repaired . Looking to add additional GLC to household . Hope repair is possible . ????! Hate to have accident, bad for health. Please contact. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11464158May 11, 2022
STEERING
I purchased my car 2022 Merced-Benz GLC 300 from Park Place Motorscar in Arlington Texas on February 17, 2022, and have issues with the steering wheel shaking when I drive over bumps. I have raised the problem with the dealership service department and they have not fixed it after 3 attempts. This is a safety issue and I am very concerned.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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