2015 MERCEDES-BENZ C300 Complaints

THE CAR HAS INTERMITTENT STARTING ISSUES MORE NOTICEABLY DURING ECO START / STOP PROCESS. WHEN CAR DOES AN ECO STOP AT RED LIGHT OR STOP BUT IT IS UNABLE TO RESTART CONSISTENTLY (10-20% FAIL RATE). ALL DASHBOARD LIGHTS COME ON AND CAR IS STALLED. CAR CAN ROLL IF ON A HILL. CAR CAN BE RESTARTED BY TURNING CAR ON AND OFF MANUALLY. ONLY ERROR CODE IS P1CE200 BUT THE MANUFACTURER SUGGESTED STEPS DO NO SOLVE PROBLEM. BATTERY, AUXILLARY BATTERY, STARTER, VOLTAGE DIP LIMITER, BATTERY SENSOR, STARTER RELAY WERE REPLACED. DELEAR UNABLE TO FIND PROBLEM AND SAYS ALL SOFTWARE IS UP TO DATE.

WHILE DRIVING MY 2015 MERCEDES BENZ C300 4MATIC WITH PANORAMIC ROOF ONE DAY ON RTE 9 IN HYDE PARK NY, A 2 LANE STATE ROAD I WAS TRAVELING AT 40 MPH, I SUDDENLY HEARD MORE AIR THAN USUAL AND THEN SECONDS LATER A LOUD FLAPPING NOISE ON ROOF. I PULLED OVER IMMEDIATELY ONLY TO FIND THE STATIONARY ROOF PANEL ALL THE WAY FORWARD ON THE ROOF, (DIRECTLY IN FRONT OF GLASS PORTION OF THE PANO ROOF) BECAME LOOSE ON ONE SIDE AND FLAPPED OPEN WITH WIND WHEN IN MOTION. I USED 3 QUARTERS BETWEEN WINDSHIELD AND SAID PANEL TO HOLD IT FROM POPPING UP WHILE DRIVING AND DROVE IMMEDIATELY TO A BODY SHOP. TBEY INSPECTED IT AND DETERMINED IT WAS HELD DOWN WITH BLACK EPOXY SIMILAR TO WHAT IS USED TO INSTALL GLASS SUCH AS WINDSHIELDS. THEY ADDED SOME EPOXY AND TAPED DOWN THE PIECE FOR ME. APPROXIMATELY ONE WEEK LATER I WAS TRAVELING ON THE SAME ROAD AT ABOUT 30MPH AND SUDDENLY ALL WITHIN LIKE 2 SECONDS HEARD LOUD WIND, THEN FLAPPING, THEN SAW THE ROOF PIECE FLY OFF SWING IN FRONT OFF WINDSHIELD IT WAS STILL ATTACHED TO A RUBBER GASKET, THEN UP IN THE AIR AND BACK DOWN AND SMACKED THE SIDE OF DRIVERS DOOR BEFORE BREAKING FREE AND FLYING DOWN THE ROAD BEHIND ME. LUCKILY IT DID NOT STRIKE ANY CARS OR PEOPLE AS IT BRIEFLY HELD ON TO THE GASKET ATTACHED. I IMMEDIATELY STOPPED AND WAS ABLE TO RETRIEVE IT, BROKEN INTO 2 PIECES. SOME ONLINE RESEARCH FOUND THIS HAS BEEN A VERY COMMON PROBLEM WITH MANY, MANY PEOPLE WHO POSTED ALL OVWR THE INTERNET ON FACEBOOK AND SEVERAL OTHER SITES. I THEN FOUND THE EXACT SAME PROBLEM, AND PART WAS RECALLED BY MERCEDES FOR 10S OF THOUSANDS IF CARS, BUT THE RECALL DID NOT INCLUDE MY YEAR (BUT DID INCLUDE MY MODEL FOR OTHER YEARS). THIS IS VERY OBVIOUSLY THE SAME EXACT PROBLEM AND SHOULD BE COVERED FOR ALL YEARS BY MERCEDES. I CALLED AND AFTER A LENGTHY PHONE CALL WITH MERCEDES BENZ I GOT NOWHERE. THE AGENT FOR MB REFUSED TO EVEN ADMIT IT WAS A RECALL, AND WAS RUDE.

THE C300 4MATIC SPECIFICALLY SHOULD BE RECALLED BECAUSE SOMETHING NEAR THE FRONT END SQUEAKS AND MAKES ALL TYPES OF NOISES

CHECK ENGINE LIGHT KEEPS COMING ON/ FOWL ORDER COMING FROM AC UNIT/ LOUD GAS SMELL WHEN START IGNITION IN THE MORNING

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE WAS RECENTLY IN AN ACCIDENT. THE VEHICLE WAS REPAIRED AT GERBER COLLISION & GLASS (102 CORPORATE PARK DR, HENDERSON, NV 89074) HOWEVER, WHILE LEAVING THE COLLISION CENTER, THE CONTACT HEARD A LOUD KNOCKING SOUND COMING FROM UNDERNEATH THE VEHICLE. THE CONTACT ASKED THE COLLISION CENTER TO INSPECT THE VEHICLE FOR THE SOUND HOWEVER, THE COLLISION CENTER DECLINED. THE CONTACT THEN TOOK THE VEHICLE TO MERCEDES-BENZ OF HENDERSON SERVICE CENTER (925 AUTO SHOW DR, HENDERSON, NV 89014) TO BE INSPECTED. THE VEHICLE WAS NOT YET DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 55,321.

THE 7 SPEED TRANSMISSION SHIFTS VERY HARD FROM 1 GEAR TO 2 GEAR TO 3 GEAR. FROM 3 GEAR ALL THE WAY TO 7 GEAR IS VERY SMOOTH. ALSO THE SAME WAY AROUND WHEN YOU DOWNSHIFT FROM 3 GEAR TO 2 GEAR TO 1 GEAR. THE SLOWING DOWN IS VERY HARSH AND IT LOOKS LIKE THE TRANSMISSION DOESN'T UNDERSTAND THAT THE CAR IS GOING TO A FULL STOP. ALL THE POWER AND SPEED CUT DOWN A FEW SECONDS BEFORE FULL STOP. I HAVE PERSONALLY TRIED TO DO THE RESET WITH KEY AND PEDAL TRICK BUT IT ONLY WORKS FOR A DAY OR TWO AND GOES RIGHT BACK TO THE ROUGH SHIFTING.

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE, THE CHECK ENGINE LIGHT REMAINED ILLUMINATED WITH AN ABNORMAL SOUND COMING FROM THE ENGINE. IN ADDITION, WHILE DRIVING THE VEHICLE WOULD NOT PROPERLY ACCELERATE AND UNINTENTIONALLY DECELERATED WHILE SPUTTERING. THE VEHICLE WAS TOWED TO THE LOCAL DEALER MERCEDES BENZ OF WILMINGTON LOCATED AT 3801 LANCASTER PIKE, WILMINGTON, DE 19805 TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ENGINE WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT YET REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 80,000.

UPON SUBMITTING A CLAIM FOR MY "INOPERATIVE" SENSOR ISSUE AND THE CAR LOSING ALL POWER AT HIGHWAY SPEEDS. I DISCOVERED YOUR CLAIM ABOUT PANORAMIC SUNROOF DETACHMENTS. WELL YOU ARE IN LUCK AS I HAVE A LOVELY MERCEDES WITH A ROOF PANEL THAT I HAD TO GLUE TO THE TRACK AS IT CAME APART. THE HINGE ON RIGHT SIDE IS LOOSE. I CAN NO LONGER OPEN THE SUNROOF OR IT WILL CATCH WIND AS IF IT'S ABOUT TO DETHATCH. DRIVING THE SUNROOF IS SO LOOSE THAT IT WILL NOT CLOSE WITHOUT THE HELP OF HOLDING IT DOWN SO IT LOCKS INTO PLACE. BROUGHT IT INTO THE DEALER LAST SUMMER AND THEY BRUSHED IT OFF AND TRIED TO CHARGE ME OVER $2,000 TO GET IT FIXED. THEY SAID "COMMON ISSUE" I WOULD PRODUCE PICTURES, HOWEVER MY CAR IS CURRENTLY SITTING AT A MERCEDES FACTORY SHOP GETTING ITS OTHER SAFETY ISSUES TAKEN CARE OF.

ON FEBRUARY 9TH, DURING MY MORNING COMMUTE ON THE INTERSTATE THE CAR LOST POWER TO THE DRIVETRAIN. MESSAGE THAT DISPLAYS WAS "COLLISION ASSIST PLUS INOPERATIVE" ALONG WITH CRUISE CONTROL INOPERATIVE. WITH AN AMBER ESP LIGHT ILLUMINATED, THERE WAS NO ENGINE LIGHT ON. WHEN THIS MESSAGE APPEARED THE CAR WOULD NO LONGER ACCELERATE (LIMP MODE). IN AVOIDANCE TO BEING IN A REAR END COLLISION I QUICKLY PULLED OVER, TURNED OFF THE CAR AND TURNED BACK ON. INOPERATIVE MESSAGE, LIMP MODE AND ESP LIGHT WAS CLEARED. I CALLED DEALER TO NOTIFY. MY THOUGHT WAS THE BATTERY IS A DUD (WAS REPLACED THE DAY PRIOR), THE CAR NEEDS A SOFTWARE REBOOT DUE TO THE NEW BATTERY OR CAR WAS NOT CONNECTED TO THE "MEMORY SAVER" CORRECTLY. OR THE SENSORS WERE DIRTY. SO I DID THE EASIEST. I WASHED THE CAR. THIS PROBLEM CONTINUED TO HAPPEN 5-6 TIMES MORE OVER THE NEXT FEW DAYS STALLING ON THE FREEWAY AT 65-75 MPH. EXTREMELY DANGEROUS & LIFE THREATENING. NO ENGINE PROBLEMS APPARENT. SEEMS TO BE RADAR OR SOFTWARE. THIS IS EXTREMELY DANGEROUS WHILE ON THE HIGHWAY, I FOUND MANY OTHER WITH THIS SAME ISSUE ON NHTSA. I ATTACHED A PICTURE OF CAR SHOWING MESSAGE WITH NO POWER. MY SEATBELT WAS OFF AS I WAS ON SIDE OF ROAD TRYING TO GET TO GAS STATION. THIS ISSUE IS CLEARED BY TURNING CAR ON / OFF. THEN IT HAPPENS AGAIN HOURS OR A DAY LATER, LOSS OF POWER AT HIGHWAY SPEEDS. COAST OVER.

SUSPENSION PARTS ARE RUSTING OUT FAST I DON'T LIVE IN A SALTED ROAD FOR BLACK ICE TYPE OF ENVIRONMENT CAR ONLY HAS 66K MILES AND AC POURS FUEL ODORS IN THE CABIN INTERIOR MATERIALS ARE BUBBLING UP FAST EVEN AFTER UV TREATMENTS.