2018 Mercedes-Benz C-Class
Problems, recalls and owner-reported issues
Engine is the leading concern among 130 owner complaints filed for this model year. This is the 15th highest complaint count among 23 C-Class model years with reports.
Of the 2018 reports, 5 involved a crash. 2 people were injured.
What owners report most often
Recalls and investigations
No safety recalls on file.
Representative owner complaints
130 reports, newest first.
Service brakes, Nov 22, 2018, crash
I BOUGHT A CAR IN APRIL 2018. THE FIRST ACCIDENT OCCURRED ON THE HIGHWAY IN MAY 2018. I WAS DRIVING AT A SPEED OF 75 KM / H. I SAW THE CAR IN FRONT OF ME STEPPING ON THE BRAKES AND I ALSO STEPPED ON THE BRAKES, BUT MY CAR DID NOT SLOW DOWN. MERCEDES-BENZ KOREA CLAIMED THAT THERE WAS NO PROBLEM WITH THE CAR, ALTHOUGH THE CAR COLLIDED WITH THE CAR AS IT WAS. IN JULY 2018, THE SECOND ACCIDENT OCCURRED IN THE UNDERGROUND PARKING LOT OF THE APARTMENT WHERE I LIVE. I STARTED THE CAR, I SAW A CAR IN FRONT OF 60M. AS SOON AS I FOUND THE CAR AND STEPPED ON THE BRAKES, MY CAR SUDDENLY STARTED TO RUN AT HIGH SPEED. I WAS SURPRISED AND BRAKED HARDER. THE HARDER THE BRAKES WERE, THE FASTER THE CAR DROVE. FORTUNATELY, I DID NOT HIT THE CAR THAT WAS ON THE OPPOSITE SIDE, BUT MY CAR WAS PUSHED INTO THE WALL. ON CCTV, YOU CAN SEE THAT I WAS PUSHED INTO THE WALL WITH MY BRAKES ON. IT IS BECAUSE THE BRAKE LIGHT OF MY VEHICLE COMES IN. BY THE WAY, MERCEDES-BENZ KOREA SAYS THAT THERE IS NO PROBLEM WITH MY VEHICLE FOR FIVE MONTHS AND THAT EVERYTHING IS MY FAULT. I HAVE ALSO REPORTED SEVERAL TIMES THAT THERE IS A PROBLEM WITH THE ABS MODULATOR OF A C-CLASS CAR MADE BY MERCEDES-BENZ AT A KOREAN BROADCASTING STATION. MERCEDES-BENZ KOREA TOLD ME THAT WHEN I FIRST HAD A CONVERSATION, THE ABS MODULATOR WAS WORKING AND THAT THE CAR SLIPPED BECAUSE OF IT. I ACCIDENTALLY HIT THE BRAKE PEDAL. MY CAR WAS TURNING ON THE BRAKE LIGHTS ALL THE WAY UP TO 60M STRAIGHT AHEAD (I WAS STILL ON THE BRAKES) AND THE CAR EVENTUALLY HIT THE WALL. WHEN I PROTESTED TO MERCEDES-BENZ KOREA, THEY SAID TO ME, "THE BRAKE LIGHT IS ON, BUT THE BRAKE ASSIST LIGHT IS OFF. YOU DID NOT BRAKE." THEY HAD AN OBVIOUSLY DIFFERENT ANSWER FROM THE BEGINNING. "I RIDE THE CAR AGAIN. HOW WILL YOU BE RESPONSIBLE IF YOU HAVE AN ACCIDENT?" WHEN ASKED THEM, THEY "DO NOT HAVE TO ANSWER ANYTHING THAT HAS NOT HAPPENED YET."
Power train, Oct 16, 2018
NEW VEHICLE WITH UNDER 1000 TOTAL MILEAGE. INTERNAL PRESSURE CONTROL VALVE IN TRANSMISSION FAILED CAUSING MAJOR DAMAGE TO TRANSMISSION WITH METAL SHAVING FOUND IN TRANSMISSION PAN. TRANSMISSION AND FAULTY VALVE NEEDED TO BE REPLACED UNDER WARRANTY.
Structure, Sep 12, 2018
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300 CONVERTIBLE. THE CONTACT STATED THAT THE FRONT PASSENGER SIDE FENDER BECAME PARTIALLY DETACHED FROM THE BODY OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF FORT WASHINGTON (404 PENNSYLVANIA AVE, FORT WASHINGTON, PA 19034, (215) 646-7700) AND THE CONTACT WAS CHARGED FOR THE REPAIR ON A FAIRLY NEW VEHICLE. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 7,650. THE VIN WAS UNKNOWN.
Structure, Jul 31, 2018
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V456000 (STRUCTURE); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR AS THE RECALL NOTICE WAS RECEIVED OVER THREE WEEKS AGO. THE DEALER (MERCEDES-BENZ OF ONTARIO, 3787 E GUASTI RD, ONTARIO, CA 91761) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE VIN WAS NOT AVAILABLE.
Seats, Service brakes, Jun 19, 2018
I BROUGHT MY VEHICLE TO MERCEDES BENZ FOR A REAR TAIL LIGHT RECALL. WHEN I PICKED UP MY VEHICLE THE BRAKE PEDAL WENT TO THE FLOOR. NOTE: THIS WAS NOT HAPPENING PRIOR TO ME DROPPING THE CAR OFF TO THE DEALER. THE SERVICE MANAGER DROVE MY CAR BACK TO THE MECHANIC. I WAS THEN TOLD THAT, IRONICALLY, THE BRAKE LINE RUSTED (METAL LINE) OUT CAUSING THE BRAKE FLUID TO LEAK OUT. ALSO, PASSENGER FRONT SEAT SENSOR WENT. SEAT WILL NOT MOVE BACK OR FORWARD.