2019 Mercedes-Benz GLC350E

These are unverified consumer reports filed with NHTSA, shown as submitted.

• 12/16/2019· STEERING

  TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ GLC63C4. THE CONTACT STATED THAT THE STEERING WHEEL SHOOK AND VIBRATED. WHEN TURNING THE VEHICLE, IT WOBBLED, MADE A LOUD KNOCKING NOISE, JERKED, AND SKIPPED WHEN THE CONTACT ATTEMPTED TO COMPLETE A TURN. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF THE WOODLANDS (16917 INTERSTATE I45, CONROE, TX 77385, (936) 206-7500), BUT WAS NOT DIAGNOSED. THE DEALER TEST DROVE THE VEHICLE AND WAS ABLE TO RECREATE THE FAILURE. THE DEALER STATED THAT THE VEHICLE WAS PERFORMING NORMALLY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 15.

• 12/11/2023· STRUCTURE

  The contact owns a 2019 Mercedes-Benz GLC350. The contact stated that while being serviced the mechanic observed two cracks in the middle of the sunroof panel. The contact stated that he believes the cracks are associated with NHTSA Campaign Number: 21V197 (Structure). The vehicle was taken to a dealer where it was diagnosed that the sunroof panel (205-780-00-22-40) needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and he also filed a complaint (03902387). The failure mileage was approximately 40,000. The contact stated the left/passenger side roof drip molding is also cracked. This is a stationary panel that is part of the panoramic sunroof assembly.

• 12/11/2021· 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.

• 11/30/2020· ELECTRICAL SYSTEMFire

  TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ GL350. THE CONTACT STATED THAT WHILE DRIVING AND ACCELERATING FROM APPROXIMATELY 15 MPH TO 60 MPH, THERE WAS AN ABNORMAL BURNING ODOR INSIDE OF THE VEHICLE. A MESSAGE DISPLAYED ON THE INSTRUMENT PANEL INSTRUCTED THE DRIVER THAT THE VEHICLE WOULD SHUT-OFF WITHIN 3 MINUTES. THE CONTACT STATED THAT THE VEHICLE LOSS MOTIVE POWER, STALLED AND SHUT-OFF WITH SEVERAL UNKNOWN MESSAGES DISPLAYED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT THE ODOR CAME FROM THE BATTERY. THE VEHICLE WAS TOWED TO MERCEDES-BENZ OF SPRINGFIELD (295 BURNETT RD, CHICOPEE, MA 01020. (413)624-4100) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE BATTERY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000. *DT*JB

• 11/29/2023· UNKNOWN OR OTHER,ENGINE

  Had the Crankcase valve error, PCV valve, (P052E) trigger engine problem several times at 58.000 miles mark. The dealer says its a $2000 repair and not covered under warranty. The crankcase valve affects emission controls to not perform properly. It should be covered under NJ CCR 2037 up to 70.000 miles.

• 11/24/2023· ENGINE

  Cracked piston due to a faulty wrist pin installed in the MBZ M274 engine. Yes, available for inspection. Car began shaking and I would not have been able to control it if I had been driving at a higher speed. Yes, the problem is well known amongst MBZ and the service manager admitted to this engine having resulting cracked pistons. The "check engine" light did not come on until the day after the severe shaking of the vehicle. This should have been a safety recall years ago.

• 11/21/2025· POWER TRAIN

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while shifting from reverse to drive, the vehicle stalled and remained in neutral. After the vehicle stalled, the vehicle took approximately 8 minutes before the vehicle could be shifted into drive. Once in drive, the vehicle would jerk and shift to D3 before accelerating. The check engine warning light would illuminate while in reverse. The vehicle was taken to the dealer, who diagnosed a transmission failure due to a malfunctioning valve body and low pump pressure. The dealer confirmed that the VIN was not under recall and that the issue was not covered under warranty. The vehicle was not repaired. The contact informed the manufacturer of the failure, and a case was opened. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 60,000.

• 11/15/2024· STEERING,SUSPENSION,WHEELS

  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)

• 11/13/2023· STRUCTURE

  The contact owns a 2019 Mercedes-Benz GLC350E. The contact stated that the vehicle made an abnormal windy sound while driving. The contact stated that the adhesive bonding of the roof panel was deteriorating, causing the front roof panel to partially detach from the vehicle. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure) however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 25,600.

• 10/13/2023· ELECTRICAL SYSTEM

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated while driving 90 MPH, he received a message displaying "Key Fob not Detected," and the vehicle suddenly lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired, and the failure reoccurred and was taken back to the dealer ten additional times without a proper cause for the failure being determined. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 35,000.

• 10/08/2024· UNKNOWN OR OTHER

  Sunroof exploded while I was driving. No other cars around me, pretty day, not a very hot day. I’m driving along and suddenly hear a loud POP that sounded like a shotgun going off! I swerved, but thankfully did not leave the road. Shattered glass was contained in the cover of the sunroof as I didn’t have it open at the time. A huge hole is in my roof of my car! I called the dealership who said it was not covered under any warranty although I just got the vehicle in Feb of this year. He said I would have to contact corporate. I contacted corporate who said bring it in for an inspection. At the conclusion of the inspection on 10/8/24, they could not determine if it was a manufacturer defect or outside sources since they could not find a point of impact, because the glass was nearly all gone. I had to get my insurance involved. There was no warning whatsoever. The dealership said no recalls. It just exploded all of a sudden!

• 09/24/2023· ENGINE

  P052E system replacement needed at 52880 miles

• 09/19/2022· ELECTRICAL SYSTEM

  The command system keeps turning off and rebooting while driving. Sometime it makes the rear camera don’t work(blackout), auto on/off does not work, it happens about every two minutes making it dangerous.

• 09/17/2021· SERVICE BRAKESCrash

  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.

• 08/30/2022· BACK OVER PREVENTION

  The car's backup camera sttoped working suddenly. No image can be seen in the monitor, putting at risk the life of other pedestrian or putting a collision risk.

• 08/27/2024· WHEELS

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that the tires were worn in one specific area and the failure had also occurred after replacing the tires. The contact took the vehicle to the dealer where an alignment was completed; however, it was confirmed that the rear hub bearing was rubbing the tires and needed to be replaced. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The failure mileage was 79,000.

• 08/22/2025· VEHICLE SPEED CONTROLCrash

  The contact owned a 2019 Mercedes-Benz GLC 300. The contact stated that while driving at 15 MPH up and down the street on the fourth trip, the vehicle pulled to the left and suddenly accelerated, traveled over the curb, went through a sign on a pole, vegetation, and crashed into a concrete planter box. There were no warning lights illuminated. The air bag deployed. The contact sustained bruises on her knees and hands. Medical attention was provided at the hospital. The paramedics, the police department, and the fire department were on the scene. The paramedics checked her out at the scene. There were no reported fires. A police report was filed. The vehicle was towed to a tow lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact was working with her insurance company to obtain the black box. The vehicle was deemed a total loss by the insurance company. The manufacturer was not contacted. The failure mileage was 48,000.

• 08/21/2025· UNKNOWN OR OTHER,ENGINE

  Engine runs rough and activates a flashing engine light. Sounds like the engine is misfiring. On two occasions the engine stalled,(no power steering, brakes...) luckily not in a dangerous situation. No engine codes were visible to a technician when try to diagnose. Car seemed to run fine again after restart.

• 08/14/2025· POWER TRAIN

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while stopped at a stoplight on a hill, the vehicle rolled backwards. The contact stated that the brake pedal was depressed to stop the vehicle from rolling backwards, preventing the vehicle from hitting the vehicle behind. The contact stated that the failure had occurred several times. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact was informed that rolling backwards was normal. The manufacturer was not made aware of the failure. The failure mileage was approximately 63,500.

• 08/14/2025· STRUCTURE

  The contact owns a 2019 Mercedes-Benz GLC 300. The contact stated that while driving 60 MPH, there was an abnormal cracking sound coming from the roof. The contact stated that upon arriving to the destination and parking the vehicle, the contact became aware that the panoramic roof panel had detached. The dealer was notified of the failure. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Numbers: 23V854000 (Structure) and 21V197000 (Structure). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recalls, and assistance could not be provided because the vehicle was out of warranty. The failure mileage was approximately 30,000.

• 08/13/2023· ENGINE

  The Crankcase ventilation valve has a malfunction. The actuator is blocked. Code #052E71. The manufacturer has inspected the vehicle and confirmed the issue. The same issue has happened repeatedly to numerous Mercedes owners. The car is not safe to drive with this issue because it could cause engine problems.

• 08/01/2019· POWER TRAIN,SERVICE BRAKES,ENGINE

  TL THE CONTACT OWNS A 2019 MERCEDES-BENZ GLC350E4. WHILE DRIVING AND DEPRESSING THE BRAKE PEDAL, THE VEHICLE JERKED FORWARD BEFORE IT STOPPED. THERE WAS NO WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE ALSO OVERHEATED, WHICH CAUSED THE COOLING SYSTEM NOT TO WORK. THE VEHICLE WAS TAKEN TO FLETCHER JONES MOTORCARS (949-718-3000, LOCATED AT 3300 JAMBOREE RD, NEWPORT BEACH, CA 92660), BUT THE FAILURE COULD NOT BE DUPLICATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THERE WAS NO FAILURE WITH THE VEHICLE. ON ONE OCCASION, WHILE DRIVING APPROXIMATELY 30 MPH, THE OVERHEAT WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS PULLED TO THE SIDE AND WAS LATER DRIVEN TO THE CONTACT'S RESIDENCE. THE CONTACT CALLED THE SAME DEALER AND WAS INFORMED TO CALL THE MANUFACTURER. THE MANUFACTURER SENT A TOW TRUCK AND THE VEHICLE WAS TOWED TO THE SAME DEALER WHERE IT WAS DIAGNOSED THAT THE THERMOSTAT WAS BLOCKED. THE THERMOSTAT WAS REPLACED, BUT THE CONTACT STATED THAT THE OVERHEATING DID NOT COMPLETELY STOP. THE FAILURE MILEAGE WAS UNKNOWN. *JS

• 07/29/2025· VISIBILITY

  While driving on Route 95 the Front Stationary Sunroof Panel separated and flew off

• 07/27/2022· ELECTRICAL SYSTEM,COMMUNICATION

  The contact owns a 2019 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication). The contact waited for the over-the-air (OTA) update to be sent; however, the update was not performed. The dealer had been notified about the issue and informed the contact that the dealer also never received the update. The manufacturer had been notified of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.

• 07/23/2022· UNKNOWN OR OTHER

  Hello, I own a 2019 Mercedes Benz GLC 300 that's been on recall with no remedies released since April of this year. The recall is a SIM module defect that is suppose to help the driver get ahold of emergency responders in case an accident were to happen. The remedy is suppose to be OTA, but I have not seen anything update on my vehicle and I am worried Mercedes is going to forget about this update.

• 07/20/2022· 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 unavailable. The dealer was made aware of the issue and the contact was informed that the recall update would be sent OTA (over-the-air); however, the update was still pending. The manufacturer had been notified of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.

• 07/17/2022· UNKNOWN OR OTHER

  The SIM has the potential to become disabled and won’t connect to the mobile network. They have announced the problem but it has been months with no remedy even though it’s stated to be performed over the air. If I get into an accident there is a chance emergency responders will show up late if at all. This risk is there everytime I drive my vehicle

• 07/12/2025· ELECTRICAL SYSTEM,ENGINEFire

  FIRE! NHTSA Vehicle Safety Complaint – Mercedes-Benz GLC300 Complainant Information: [XXX] [XXX] Phone: [XXX] Email: [XXX] Vehicle Information: 2019 Mercedes-Benz GLC300 4MATIC VIN: [XXX] Purchase Location: Missouri Incident Location: St. Louis, MO Date of Incident: [XXX] Date of Report Submission: July 12, 2025 Summary of Incident: On [XXX] , my 2019 Mercedes-Benz GLC300 4MATIC spontaneously caught fire while parked. I immediately contacted Mercedes-Benz Roadside Assistance, and the vehicle was towed for inspection. Mercedes-Benz later claimed the fire originated in the engine compartment, yet took no accountability and cited “missing components” as an excuse to avoid liability. Photographic evidence shows that the parts were present immediately after the fire. Mercedes-Benz denied that NHTSA Recall 21V961000 applied to this vehicle, despite clear similarity in symptoms (fire risk due to fuel or electrical issues). I was also never notified of any fire risk. Furthermore, towing coordination failures led to my vehicle being sent to a third-party lot, incurring unauthorized fees. Safety Concern: The spontaneous combustion of this vehicle presents a serious public safety risk. I am concerned this issue may be more widespread and underreported. Mercedes-Benz’s failure to take accountability and deflecting blame could endanger other consumers. Desired Action: 1. Federal investigation into similar fire-related complaints involving 2019 GLC300s. 2. Reconsideration of eligibility under Recall 21V961000 or related campaigns. 3. Consumer safety alert or expanded recall if defect patterns are confirmed. Attachments Provided: - Mercedes-Benz USA denial letter dated July 11, 2025 - Photos of the fire damage - Letters and written communications Signature: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 07/12/2019· VISIBILITY/WIPER

  WIPER BLADES ON WINDSHIELD SKIP DURING DRIVING ON ROADS AT ALL SPEEDS, EVEN ON THE HIGHWAY AND IN THE RAIN AND HARD TO SEE THE ROAD WHEN DRIVING . THEY DO NOT CLEAR THE WINDSHIELD AND CONSTANTLY SKIP ACROSS EVERY TIME. I HAVE HAD MERCEDES BENZ REPLACE AND ADJUST MY BRAND NEW CAR WIPER BLADES AND STILL THE PROBLEM CONTINUES. I CALLED 1800MERCEDES AND THEY SAID THEY ARE AWARE IT IS A KNOWN PROBLEM AND WILL LET ME KNOW IF AND WHEN IT GETS RESOLVED. NO OTHER WIPER BLADES ON THE MARKET FROM AUTO ZONE, ADVANCE AUTO PARTS ETC., WILL FIT MY CAR!!

• 06/22/2022· 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?

• 06/18/2022· ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FUEL/PROPULSION 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.

• 06/14/2024· STRUCTURE

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated while driving at an undisclosed speed, the contact heard an abnormal sound emanating from the vehicle from an unknown location. The contact pulled over to the shoulder of the roadway and after a visual inspection of the exterior of the vehicle, the contact observed that the front roof panel had become detached. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V854000 (Structure) but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was unknown.

• 06/13/2025· ELECTRICAL SYSTEM,ENGINE

  - My transmission is malfunctioning. It is available for inspection. - My car is not allowing me to shift from reverse to drive. When I try to put it in drive, it gets stuck in neutral. My safety is at risk as I was trying to do a quick 3-point turn and got stuck in the lane. - Yes, the problem has been confirmed by an independent service center. There was a recall by Mercedes Benz for the same issue in 2020, but for some reason my car isn't included. - The vehicle has been inspected by an independent service center - No warning lamps or messaged prior to the failure which first appeared on Thursday, June 5.

• 06/11/2025· ELECTRICAL SYSTEM,STRUCTURE,FUEL/PROPULSION SYSTEMFire

  On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my vehicle caught fire spontaneously and matches the defect described in this recall, I firmly believe this incident was related to that defect. Mercedes-Benz has not provided adequate assistance. The vehicle was towed to a local dealership (Plaza Mercedes-Benz), but they refused to accept it, adding further confusion and hardship. I am submitting this report to request that NHTSA fully investigate this issue and work to ensure that Mercedes-Benz USA takes responsibility for this vehicle defect and compensates me for this dangerous failure. I am happy to provide photos, tow reports, or further documentation if needed. Thank you for your assistance in ensuring public safety.

• 06/08/2022· 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.

• 05/30/2023· UNKNOWN OR OTHER

  P052E PCV valve issue, as for many others, this part malfunctioned about a month after warranty has expired. This seems to be a known issue for this model (GLC300) according to many online forums.

• 05/30/2020· STEERING,ELECTRICAL SYSTEM,WHEELS

  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

• 05/17/2024· UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM

  The error code is P052E and it is a PCV Code Crankcase Ventilation Oil Separator. It's a time-consuming and expensive repair that seems to be regularly occurring on a lot Mercedes Benz that have this installed. And it happens often on cars with under 50K miles on them and when it's just been out of warranty this is a small inexpensive part that the customer funds through the cost of labor. Not that mechanics don't deserve their labor costs, but Mercedes ought to fix this is issue as it is borne by the consumer of a high end vehicle for a consistent, faulty part that they have engineered.

• 05/07/2026· POWER TRAIN,ELECTRICAL SYSTEM

  On April 16, 2026, within minutes of being released from a certified dealership, my 2019 Mercedes-Benz GLC 300 suffered a sudden and total loss of propulsion while traveling at high speed on the Belt Parkway (NY). Despite depressing the accelerator, the vehicle failed to maintain speed and stalled in active traffic. This created an immediate life-safety hazard, forcing me to navigate across multiple lanes without engine power to avoid a high-speed rear-end collision. The vehicle was released to me by Mercedes-Benz of Brooklyn on April 16, 2026, following a repair for which I paid $2,134.94. The dealership diagnosed the issue as a wiring harness/sensor fault and formally certified the vehicle as "Found OK" and safe for operation. The catastrophic failure occurred only 22 minutes after I departed the dealership lot. The vehicle had to be towed back to the facility immediately. Upon the vehicle being towed back on April 16, the dealership admitted via recorded voicemail that the initial $2,134.94 repair was a misdiagnosis. They subsequently issued a new diagnosis for a "Valve Body" failure and a new quote of $6,424. The dealership's Service Director has since admitted the vehicle suffers from concurrent transmission and engine failures, rendering the car a liability. This represents a critical failure of the powertrain and electronic control systems. Releasing a vehicle that suffers a total power loss on a highway immediately after a "certified" repair is gross negligence. I am reporting this to NHTSA as a catastrophic failure of a safety-critical component (Transmission/Valve Body) that resulted in a "dead-stick" situation on a major New York thoroughfare, posing a severe risk to myself and other motorists. The vehicle remains at the dealership. Mercedes-Benz USA has offered only a $2,000 "goodwill credit," which does not address the safety defects or the initial misdiagnosis. No recall has been initiated for this batch.

• 05/07/2024· TIRES

  The four tires were replaced on [XXX] at 28,000 miles. Then 4 additional tires replaced at 57,000 miles [XXX]. Less than one year in Oct of 2023 I noticed a sound coming from the front tires when driving . Two of the front tires needed to be replaced 75300 miles . These tires FPIRREILLI SCROPION VERDE 235/55 R19 101H are having to be replaced too often . There appears to be a defect in the tires INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 04/24/2019· UNKNOWN OR OTHER

  VEHICLE WAS IN MOTION ON A CITY STREET WHEN IT STALLED AND EVEN THOUGH I DEPRESSED THE ACCELERATOR, VEHICLE WOULD NOT MOVE. A MESSAGE IN RED APPEARED STATING THERE WAS NOT ENOUGH FUEL AND TO GO RE-FUEL, EVEN THOUGH THE TANK WAS 3/4 FULL. THE ENERGY FLOW THROUGH THE BATTERY WAS 16-19%. I HAD TO SHUT OFF THE CAR. WAIT. THEN, RE-START AND WAS ABLE TO GET HOME. PROBLEM: 1. THE CAR GAS ENGINE DID NOT KICK IN AND THE MESSAGE WAS TO RE-FUEL (CAR DID NOT RECOGNIZE ALMOST FULL TANK OF GAS). 2.STALLED WHILE IN MOTION. (I AM GLAD THIS DID NOT HAPPEN ON THE HIGHWAY). THE LOCAL DEALER HAS THE CAR NOW AND I AM DRIVING A LOANER. THEY HAVE THE CAR SINCE SAT APRIL 20,2019. (AUTOBAHN MOTORS 650-637-2333 @ 700 ISLAND PARKWAY, BELMONT, CA 94002

• 04/16/2023· ELECTRICAL SYSTEM

  Our 2019 GLC with 25,000 miles flooded from the inside out with no warning -- a terrifying safety concern. One day when driving to work the car felt slightly odd while driving on streets in Washington, DC. Pulled over to the side of the road and car would not start. Dealer sent tech and jumped the car after a few attempts. Dealer/repair thought the car had a bad battery and voltage dip limiter. Repaired both and returned car. The next day the car drove in the morning but would not start again; was towed to dealer. Dealer/repair reported the limiter was "fried"; repaired again but at our insistence investigated further because we suspected a short and wanted to understand why. Upon further investigation the dealer discovered our car was flooded on the driver's side on the inside; electrical components flooded. There was no warning; no indication of water. After subsequent water testing dealer/repair estimate stated that it was a "slow drip of water in the area of the driver footwell, right side. Can feel by hand water around area where heater hoses and A/C lines come through the firewall." We alerted Mercedes and were concerned because there was no warning and because we found other similar recalls: (https://www.motorsafety.org/mercedes-benz-recalls-suvs-for-water-leak/ and https://www.motorsafety.org/mercedes-benz-issues-third-recall-for-water-leak-that-can-lead-to-fire-limp-home-mode%ef%bf%bc/). We believe this is a defect in the car; Mercedes instructed us to file this form if we were concerned about safety and the integrity of the vehicle.

• 04/16/2021· ELECTRICAL SYSTEM

  MERCEDES STATES THAT THE UPDATE WILL HAPPEN OVER AIR BUT THEY DON'T TELL ME WHEN OR HOW LONG IT WILL TAKE TO HAPPEN. IT IS A SIMPLE UPDATE AND I NEED THE RECALL OFF MY CAR.

• 04/15/2021· VISIBILITY/WIPER

  WHEN DRIVING DOWN A CITY STREET AT A SPEED OF APPROXIMATELY 35 MPH, ON A STRAIGHT STRETCH OF ROAD, THE MOONROOF EXPLODED. THIS WAS NOT IMPACTED BY ANY OBJECT AND THERE WAS NO COLLISION. THIS GLASS SHATTER HAPPENED WITHOUT WARNING

• 04/10/2024· VISIBILITY

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated while driving 25-30 MPH in the rain, the front driver's side window became foggy, and the front driver's side window power switch button was depressed to roll down the window to clear the fog; however, the switch fractured in her hand. The manufacturer was notified of the failure and a case was opened. The manufacturer referred the contact to the dealer for assistance. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer later informed the contact that they could not help. The failure mileage was approximately 27,500.

• 04/06/2026· VISIBILITY

  The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while driving 65 MPH on the interstate, the sunroof suddenly shattered into pieces and flew off the vehicle. The vehicle was driven to a dealer but was not repaired. The manufacturer was notified of the failure. The failure mileage was 106,706.

• 04/01/2026· UNKNOWN OR OTHER

  I have a MC Benz 300 GLC with $50,000 miles. I was having heating issues so took it to the dealership, which basically advised of the issue describer below, which would cost $14k to repair. Contaminated coolant in Mercedes-Benz GLC 300 models often results from the internal failure of a "desiccant bag" inside the coolant expansion tank, which disintegrates, releasing material that clogs the heater core. Symptoms include black residue in the tank, reduced cabin heat, and engine overheating. Key actions include replacing the expansion tank (reservoir) and flushing the entire system.

• 03/25/2026· AIR BAGS,SEAT BELTS

  A message that passenger air bag is damaged/will not deploy appears. Passenger seat belt gets stuck and cannot be opened. Check engine light on-pvc valve issue most likely.

• 03/23/2025· ENGINE

  Faulty Positive Crankcase Ventilation Valve. Seems a very common failure which causes poor emissions and potentially further engine damage.

• 03/03/2023· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  From the beginning, I have had issues with my car and received nothing but patronizing responses from both the dealership and the service department. From the very start, I have experienced constant issues with my car, only to be met with a condescending attitude from all levels of senior staff members at the dealership and the service department. When I asked for solutions, their solution was to inform me that I was merely using my car door handle incorrectly to open it and activate keyless go. The repair department refused to acknowledge any mechanical faults and instead blamed me as the operator although I had no issues with operating any of their loaner vehicles. Mr. Max Spata eventually arranged one last attempt at repair, yet I was immediately denied service after the service department eventually received notice of my legal letter asserting my rights under the contract. Instead of making an attempt to remedy the solution as requested in that letter, the service department called and advised me that they were demanding the return of the loaner vehicle and that I must pick up my vehicle immediately. The service department then subsequently refused to make any attempts to repair the vehicle under warranty and have continuously made me feel as if my issues are invalid. Throughout the entire process, I have felt invalidated and belittled by their attempts to gaslight me in order to avoid responsibility for their faulty product. The vehicle has experienced several malfunctions, including but not limited to, the KeylessvGo Entry malfunctioning while attempting to enter the car, the vehicle locking without beingvprompted, and the vehicle failing to recognize when keys are inside, thus not allowing it to operate. Moreover, there have been several audio/muffled sound issues with the vehicle's radio system, which have significantly impacted my driving experience. Additionally, I have experienced a recurring problem of the vehicle locking the keys inside the car.