2020 Mercedes-Benz AMG GLC43 problems and owner complaints

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC43. WHILE DRIVING, THE CONTACT NOTICED A SQUEAKY NOISE AROUND THE DASHBOARD AREA WHILE DRIVING OVER BUMPS IN THE ROAD. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ROCKVILLE CENTRE (650 SUNRISE HWY, ROCKVILLE CENTRE, NY 11570 [phone removed]) WHERE NO DIAGNOSTIC FAILURE CODES WERE FOUND AND THE FAILURE COULD NOT BE REPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND A TECHNICIAN WAS SENT TO MERCEDES-BENZ OF ROCKVILLE CENT…

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THIS VEHICLE IS BEING SOLD WITH ALL-SEASON TIRES AND NO SPARE TIRE OR FLAT TIRE INFLATOR KIT. WE EXPERIENCED A FLAT TIRE AND WERE STRANDED FOR SEVERAL HOURS WITH NOW WAY TO CHANGE OUR FLAT TIRE. MERCEDES OFFERS MBRACE EMERGENCY SERVICE, BUT THIS TOOK LONG TO RESPOND. THIS VEHICLE SHOULD COME WITH RUN FLAT TIRES AND OR A WAY TO INFLATE A FLAT.

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I PURCHASED A 2019 GLC AMG 43 AS A XMAS GIFT FOR MY WIFE. IT WAS BLACK WITH A VIBRANT BROWN INTERIOR. I WAS CONCERNED THAT THE ELECTRONICS(BACKUP CAMERA, BLUETOOTH, MUSIC, ENTERTAINMENT CONSOLE) WERE NONFUNCTIONAL. HOWEVER, THE EXPLANATION THE SALES REPRESENTATIVE GAVE ME WAS SUFFICIENT AT THE TIME. HE SAID MERCEDES WAS UPDATING THEIR COMPUTER SOFTWARE AND WE SHOULD BE GETTING AN UPDATE ON JANUARY 2, 2019. NEEDLESS TO SAY, IT WAS NOT TRUE! THE SERVICE MANAGER EXPLAINED THAT THIS VEHICLE WAS MISSING THE "BRAIN." THE COMPUTER SYSTEM THAT COMMUN…

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2020 AMG GLC 43 coupe here in Harrison, NJ. My driving style with this vehicle isn't different in any relevant way versus with past vehicles. There is an acceleration dead spot which is the default occurrence when I am coasting at a low speed and then go to accelerate. Common scenarios are driving toward an intersection and rolling forward as you determine if you are clear to go and then accelerating, or slowing down to let a car in the lane next to you go by so you can then switch lanes and accelerate. I swear, I've almost gotten killed a few …

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Panoramic sunroof exploded while driving.

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The transmission intermittently shifts hard. When accelerating the car hesitates badly then lurches forward. The Dealer verified the concern, the transmission as a hard shift from 1-2nd. They performed various procedures to the hardware, but ultimately determined the problem is the software and that this is a known issue to Mercedes since early in the year. They have not been able to resolve the software issue. This creates a major safety hazard: 1. When changing lanes, the hesitation does not allow for proper acceleration creating a timi…

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On Sunday, XXX at approximately 5:30 PM, I entered the parking lot of a Staples store at [XXX], in my 2025 Mercedes Benz AMG GLC 43 SUV. It was daylight and the weather was clear. There was no wind and the temperature was in the low 80s. I drove down a parking aisle and slowed down to make a right turn into an open parking space. After completing my turn into the parking space, I let my foot off the brake to allow the vehicle car to roll closer to the wheel stop. Once my foot was off the brake, the car suddenly accelerated on its own, and befor…

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I PURCHASED A 2019 GLC AMG 43 AS A XMAS GIFT FOR MY WIFE. IT WAS BLACK WITH A VIBRANT BROWN INTERIOR. I WAS CONCERNED THAT THE ELECTRONICS(BACKUP CAMERA, BLUETOOTH, MUSIC, ENTERTAINMENT CONSOLE) WERE NONFUNCTIONAL. HOWEVER, THE EXPLANATION THE SALES REPRESENTATIVE GAVE ME WAS SUFFICIENT AT THE TIME. HE SAID MERCEDES WAS UPDATING THEIR COMPUTER SOFTWARE AND WE SHOULD BE GETTING AN UPDATE ON JANUARY 2, 2019. NEEDLESS TO SAY, IT WAS NOT TRUE! THE SERVICE MANAGER EXPLAINED THAT THIS VEHICLE WAS MISSING THE "BRAIN." THE COMPUTER SYSTEM THAT COMMUN…

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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 v…

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Moisture began collecting inside the left headlight assembly, even though the housing should be sealed. Over time, the condensation increased and the front left turn signal failed. The vehicle displayed warning messages for the turn signal, low beams, Blind Spot Assist, Traffic Sign Assist, and Active Brake Assist. The failed turn signal reduces the vehicle's visibility to other drivers and creates a potential safety hazard. A similar moisture intrusion issue was the subject of NHTSA Recall 22V-261 for certain 2021 Mercedes-Benz GLC vehicles, b…

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every time I get into my vehicle, I have a new malfunction that pops up and when I take it to the dealership they can never find what’s wrong. I have had multiple instances where my screen will turn black and there’s nothing I can do or the screen will freeze, and I can’t figure out how to get it back on. I can’t figure out how to get CarPlay to automatically connect to my phone because the vehicle is so jacked up. It’s been in the shop probably about 13 times since I’ve gotten it last December and has been in collision for six months now from …

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2:19 PM ARRIVED POMPANO MERCEDES-BENZ TO PICK UP MY SERVICED VEHICLE ( 10,000 MILE SERVICE). 2:23 PM RETURNED MERCEDES-BENZ LOANER PROVIDED BY DEALERSHIP. 2:30 PM SERVICE ADVISER BRINGS CAR INSIDE THE SERVICE AREA, AND PROVIDES ME A RECEIPT OF THE SERVICE PERFORMED. 2:30 PM I LEAVE THE INSIDE SERVICE AREA AND GO TO DRIVE-THROUGH MC DONALDS (IN THE SAME COMPLEX AS DEALERSHIP). I DID NOT STOP, OR GET OUT OF THE CAR. 2:35 PM I LEAVE THE MC DONALDS DRIVE-THROUGH IN THE SAME COMPLEX AS MERCEDES DEALERSHIP AND ENTER THE I-95 SOUTH TOWARDS HOME/OFF…

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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 v…

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At just 30,000 miles , less than half the mileage at which these failures are typically reported , my GLC 43 was found to have active oil leaks in multiple locations: 1. Front engine covers , oil is seeping from both the front cover gasket area and migrating downward along the engine block. The dealer recommends a full reseal of the front covers at a quoted cost of $1,944. 2. Radial shaft sealing ring of the front axle gear , is actively seeping gear oil, with a quoted repair cost of $1,718. My concern is not limited to cost. Oil migrating f…

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every time I get into my vehicle, I have a new malfunction that pops up and when I take it to the dealership they can never find what’s wrong. I have had multiple instances where my screen will turn black and there’s nothing I can do or the screen will freeze, and I can’t figure out how to get it back on. I can’t figure out how to get CarPlay to automatically connect to my phone because the vehicle is so jacked up. It’s been in the shop probably about 13 times since I’ve gotten it last December and has been in collision for six months now from …

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Hi, Improper gear shifting. Vehicle engine light comes on with Error Code P073E, "reverse gear cannot be engaged" Vehicle would shift gear back into neutral position when put to Drive. When vehicle is able to be put in gear Reverse or Drive, a loud noise and shaking would occur. When driven, vehicle is in Limp Mode and can only go up of Gear 5. (this is a 9G Tronic, 9 gears in total) As I was backing up into street from a parking stall, I was not able to put the vehicle in Drive to proceed forward. Traffic was building up. Driver panicked. But …

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The engine-driven vacuum pump and turbocharger boost-control vacuum system malfunctioned. The vehicle developed insufficient vacuum to the boost-control system, resulting in a P0299 turbocharger underboost fault and reduced engine power. The vehicle is available for inspection upon request. The vehicle experienced a noticeable loss of peak power and reduced acceleration. Although it did not enter limp mode, unexpected reduced acceleration could create a safety risk while merging onto a highway, passing another vehicle, entering or crossing tra…

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There is a constant acceleration failure where the car does not respond. Again today I was almost in a bad crash due to this. It is a known issue to many owners in Mercedes forums. It happens in any drive mode. Eco comfort sport. Extremely dangerous and the car should be recalled.

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There wasn't a field for my exact issue but my exact issue along with many others is the lack of power when accelerating in first gear. The car has an extremely numb feeling when starting out in first gear and does not takeoff like it should. There have been many Times where I accelerate and the car hesitates then I get a transmission jolt Or the car just does not accelerate immediately when I push on the gas from a stop. This is causing me to not pull out in front of cars in fear the car will hesitate which is a safety issue. this has been go…

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THE LANE KEEPING ASSIST AND/OR LANE BRAKING ASSIST WILL VIOLENTLY MOVE THE VEHICLE UNASSISTED BY DRIVER ONTO ACCESS ROADS THE DRIVER EXPECTS THE VEHICLE TO MAINTAIN ITS POSITION OF THE HIGHWAY AND NOT TO VIOLENTLY TURN ONTO ACCESS ROADS.. IT IS PARTICULARLY UNSAFE ON 75 AND 85 MPH SPEED LIMIT HIGHWAYS. REQUIRES DRIVER TO VIOLENTLY JERK WHEELER BACK TO THE HIGHWAY BEING TRAVELED UPON. CALLS DIRECTLY TO MERCEDES INDICATE NO INTEREST IN THE PROBLEM AND SOFTWARE INVOLVED AND LOCAL DEALERS EITHER WILL NOT SET UP APPOINTMENTS FOR INSPECTION OR/AN…

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A FEW TIMES MY KEY WILL NOT FUNCTION TO START THE CAR. THEY TOLD ME IT WAS THE BATTERY. BUT THE DISPLAY ON MY LCD ALSO OFTEN DOES NOT FUNCTION WHEN ON CAR PLAY. THE STEERING IS JERKED WHEN I TURN THE WHEELS AS THEY SEEM TO GET STUCK ON THE PAVEMENT. OFTEN HAPPENS WHEN I AM BACKING OUT OF A PARKING SPACE AND SOUNDS AS IF I AM HITTING SOMEONE. FEELS LIKE IT TOO

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A FEW TIMES MY KEY WILL NOT FUNCTION TO START THE CAR. THEY TOLD ME IT WAS THE BATTERY. BUT THE DISPLAY ON MY LCD ALSO OFTEN DOES NOT FUNCTION WHEN ON CAR PLAY. THE STEERING IS JERKED WHEN I TURN THE WHEELS AS THEY SEEM TO GET STUCK ON THE PAVEMENT. OFTEN HAPPENS WHEN I AM BACKING OUT OF A PARKING SPACE AND SOUNDS AS IF I AM HITTING SOMEONE. FEELS LIKE IT TOO

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Panoramic Sunroof exploded while driving out of the blue. No other cars in front of me or near me. Nothing hit it.

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I regret buying the car. It has a fatal flaw with a steering defect that makes the front wheels easily skip (crabbing suspension) when turning. These should be recalled. Examples 1. [XXX] 2. [XXX] 3. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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