2020 Mercedes-Benz C-Class Cabriolet C RWD

On July 17, 2021 I was driving at the posted rate of speed down I-275 Southbound here in Michigan. All of the sudden and without warning, there was a loud explosion which happened, from as near as I can tell, in the driver's side windshield pillar, where there is an airbag. No warning lights came on, and the car did not change its driving characteristics. Only after I reached my destination and searched under the dash, and every where else (including the exterior), did I find that the plastic "cover" on the pillar is pushed away from the pillar and much more loose than the plastic cover on the passenger side. Since the incident, I have had severe tinnitus in my left ear which was about 15-18" away from it. The air bag did not deploy. I did not hit a pothole, did not hit a bump, did not hit another vehicle.

My car has failed to accelerate after being stopped. The first time, I was attempting to enter a shopping center parking lot by making a left turn across a busy road. When I engaged the gas pedal, the car finally got to 5MPH when I got into the parking lot. It was unsettling sitting in the road watching cars coming to you!! Then it did it again last week at the entrance to our complex. That time, I just turned it off and restarted it and it was fine. If it had not moved, I would have had the entire complex entrance blocked. I took it to Mercedes-Benz of Athens on 7/8 for 10,000 mile service. I informed them of the issue. The outcome this was "we unplugged a few things and hopefully this resets things". If you have the issue, bring the car in again! WOW!!! Is this before or after someone broadsides me? I think a vehicle that can not be depended on to accelerate when needed is dangerous to drive!

While driving on the turnpike without warning my steering locked and I lost control of my car.

The contact owns a 2020 Mercedes-Benz C300. The contact stated that her son was driving at an undisclosed speed when another vehicle's muffler detached and crashed into the undercarriage of the contact's vehicle. The front driver and passenger side tires exploded and fractured the rims. The contact stated that the vehicle's alert system failed to warn her son of the incoming object which resulted in the collision. The contact's son did not receive medical attention. A police report was filed. The vehicle was towed to the dealer and repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was 6,000.

THE FUEL SMELL IS COMING FROM THE RUBBER FUEL, THEY ARE NOT COVER BY MY CPO- WARRANTY ( 3000 USD PAID PACKAGE). I FOUND OVER 100 FRIENDS ON FACEBOOK GROUP HAS THE SAME PROBLEMS. DEALLER REFUSE TO COVER. MY KID IS FELL BAD ABOUT THE SMELL LEAKING.

ON A NUMBER OF OCCASIONS, I HAVE RECEIVED AN AUDITABLE WARNING, AND A RED LIGHT ON THE DASH THAT DISAPPEARS AS QUICKLY AS IT HAPPENS. I CANNOT CONTRIBUTE ANY CAUSE FOR THE WARNING AND THERE ISN'T ANY RESIDUAL INFORMATION ABOUT THE SOURCE OF THE WARNING.

MY 2016 C300 (IN-LINE 4 TURBO, "PETROL" WITH 241HP) AT 55K MILES HAD 1ST CYLINDER CRACKED WHILE DRIVING ON HIGHWAY, AND MY CAR IS OUT OF WARRANTY. I TALKED TO MY DEALERSHIP AND THE CORPORATE SEPARATELY. THE DEALERSHIP WOULD COVER THE COST OF THE PARTS WHETHER THE ENGINE NEEDS REPLACEMENT OR NOT, AS I BOUGHT MY CAR THERE NEW AND HAVE BEEN USING THEM THROUGH PREPAID MAINTENANCE. I DECIDED TO FIX THE CAR AND PAY THEM PRE-ARRANGED LABOR. BUT HERE IS THE RESPONSE FROM THE CORPORATE: THANK YOU FOR YOUR EMAIL TO MERCEDES-BENZ USA, ALTHOUGH WE REGRET TO LEARN OF THE CIRCUMSTANCES THAT PROMPTED YOUR CONTACT. WHILE WE UNDERSTAND YOUR CONCERNS, ALL WARRANTY DETERMINATIONS ARE PROVIDED BY AN AUTHORIZED MERCEDES-BENZ DEALERSHIP UPON INSPECTION. IF THE WARRANTY HAS EXPIRED, THERE IS NO OBLIGATION ON PART OF THE MANUFACTURER, TO COVER THE COST OF REPAIRS. CUSTOMERS CAN REQUEST GOODWILL ASSISTANCE, HOWEVER WHICH IS REVIEWED ON A CASE BY CASE BASIS AND NOT GUARANTEED. IT MAY BE HELPFUL FOR YOU TO KNOW THAT WHEN REVIEWING YOUR CONCERN, THE VEHICLE REQUIRES AN INSPECTION AT AN AUTHORIZED MERCEDES-BENZ DEALERSHIP, AND THE FOLLOWING VARIABLES WOULD BE TAKEN INTO CONSIDERATION: VEHICLE AGE, MILEAGE, VEHICLE HISTORY, SERVICE/REPAIR HISTORY (WHETHER MAINTENANCE IS PERFORMED AT MB DEALERS), AND BRAND LOYALTY. REVIEW FOR GOODWILL REQUESTS CAN ONLY BE REVIEWED PRIOR TO REPAIRS BEING PERFORMED, AS REIMBURSEMENT IS NOT POSSIBLE. WE APPRECIATE THE OPPORTUNITY TO RESPOND. THERE MAY BE MORE CASES AS SHOWN ON THIS FORUM: HTTPS://MBWORLD.ORG/FORUMS/C-CLASS-W205/731642-W205-C300-STAY-AWAY-PISTON-CRACKED-65-K-MILES-5.HTML

TL* THE CONTACT OWNS A 2013 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE DOOR HANDLE WAS FRACTURED INTERNAL AND UNABLE TO BE OPENED FROM INSIDE OF THE VEHICLE. THE CONTACT STATED THAT HER SON WAS LOCKED INSIDE THE VEHICLE AND UNABLE TO EXIT. THE CONTACT INFORMED HER SON TO USE THE KEY FOB TO EXIT THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND WAS DIAGNOSED WITH A FRACTURED INTERNAL DOOR PANEL WHICH CAUSED THE DOOR HANDLE TO BECOME INOPERABLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED OR INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 108,000.

TL* THE CONTACT OWNS A 2020 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE DRIVING AT A HIGH RATE OF SPEED, THE VEHICLE WOULD ABRUPTLY SLOW DOWN ONCE THE TRAFFIC SIGN READER FEATURE ACTIVATED INDEPENDENTLY WITHOUT WARNING. THE CONTACT STATED THAT ONCE A TRAFFIC SIGN ON THE ROAD WOULD INDICATE A CERTAIN SPEED LIMIT, THE VEHICLE WOULD THE SPEED LIMIT SIGN AND AUTOMATICALLY ADJUST THE VEHICLE'S SPEED TO THE SPEED LIMIT READING. THE CONTACT INITIALLY CALLED MERCEDES-BENZ OF BONITA SPRINGS(14610 TAMIAMI TRAIL N, NAPLES, FL 34110) WHERE HE WAS INFORMED TO CALL THE MANUFACTURER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE CONTACT WAS INFORMED THAT THE TRAFFIC SIGN READER FEATURE COULD BE DEACTIVATED ON THE VEHICLE. THE REPRESENTATIVE WALKED THE CONTACT THROUGH THE STEPS TO HAVE THE FEATURE DISABLED. THE CONTACT STATED THAT HE WAS NOT THOROUGHLY MADE AWARE OF HOW THE FEATURE PRIOR TO PURCHASING THE VEHICLE; HE STATED THAT THIS FEATURE COULD LEAD TO A SERIOUS CRASH OR INJURY. THE FAILURE MILEAGE WAS APPROXIMATELY 12,000.

THERE IS A RECALL ON MY CAR. THE AIRBAGS HAVE NOT BEEN REPLACED YET. THE RECALL WAS ISSUED A LONG TIME AGO. *TR