2015 Mercedes-Benz C-Class
Problems, recalls and owner-reported issues
Engine is the leading concern among 449 owner complaints filed for this model year. This is the 7th highest complaint count among 23 C-Class model years with reports.
Of the 2015 reports, 11 involved a crash and 1 involved a fire. 10 people were injured.
What owners report most often
Recalls and investigations
No safety recalls on file.
Representative owner complaints
449 reports, newest first.
Fuel/propulsion system, Mar 25, 2020
THERE'S FUEL SMELL COMING INTO THE CABIN. BROUGHT IT INTO MERCEDES DEALER SERVICE CENTER AND THEY SAID IT'S 2 BROKEN FUEL LINE. IT'S A COMMON ISSUE WITH THIS GENERATION C CLASS BUT THEY REFUSE TO FIX IT UNDER WARRANTY.
Fuel/propulsion system, Mar 2, 2020
CRANKCASE BREATHER HOSE IS LEAKING FUEL. FUEL LINE IS LEAKING FUEL. THIS CREATES GAS SMELL IN THE CAR. THIS IS ALSO UNSAFE DUE TO THE FUEL LEAKAGE. LOOKS LIKE THIS IS A VERY COMMON PROBLEM ON THESE CARS. IT SHOULD BE A RECALL.
Visibility/wiper, Feb 26, 2020
SUN ROOF FIX GLASS FLEW OFF OF VEHICLES IN TRAFFIC WHILE I WAS DRIVING ON A BUSY HIGHWAY. ADHESIVE GLUE FAILED TO KEEP THE PART ATTACHED.
Structure, Other or unspecified, Feb 23, 2020
I WAS DRIVING ON 02/13/2020, ABOUT TO CROSS THE ARKANSAS/TENNESSEE BRIDGE WHEN MY SUNROOF EXPLODED WITHOUT AN EXPLANATION. THE ENTIRE PANORAMIC SUNROOF SHATTERED. IT WAS THE MOST FRIGHTENING THING I HAVE EVER EXPERIENCE. IF MY SUNROOF SCREEN HAD BEEN OPEN, ALL OF THE GLASS WOULD HAVE FALLEN ON MY HEAD AND IN MY EYES. CALLED THE MB DEALER FOR HELP, THEY WEREN'T WILLING TO HELP AND SUGGESTED THAT I FILE IT WITH MY OWN INSURANCE COMPANY. THIS IS A DEFECT OF MB!!
Steering, Feb 21, 2020
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT WHILE DRIVING AND MAKING A RIGHT TURN, THERE WAS A CLICKING SOUND COMING FROM THE STEERING WITH THE POWER STEERING WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT THE FAILURE WAS DUE TO A CV JOINT FAILURE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE MECHANIC WAS UNABLE TO PROVIDE A CAUSE FOR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 62,000.
Fuel/propulsion system, Feb 10, 2020
WHEN VEHICLE IS COLD THE WHOLE CABIN SMELLS LIKE GAS OR WHEN PUT HEAT ON. THE SMELL IS VERY HEAVY WHEN VEHICLE IS STATIONARY WHEN DRIVE IT CALLS DOWN, BUT AT A LIGHT IT COMES BACK. MERCEDES HAS MANY COMPLAINTS ABOUT THIS PROBLEM
Engine, Feb 9, 2020
PISTON CRACKED AT 68,000 MILES, CAUSING ENGINE DAMAGE THAT CANNOT BE REPAIRED.
Fuel/propulsion system, Feb 6, 2020
THE VEHICLE HAS 67K MILES. I NOTICED A GASOLINE ODOR COMING FROM THE AC A MONTH AGO SINCE THEN, THE ODOR INTENSITY HAS DRASTICALLY INCREASED. THE ODOR USUALLY GOES AWAY AFTER A FEW MILES, HOWEVER, TODAY THE ODOR DID NOT GO AWAY AND I NOTICED AN ONSET OF A HEADACHE SINCE COMMENCING THE DRIVE, I THEN BECAME VERY DROWSY AND WAS VERY CLOSE TO REAR-ENDING THE VEHICLE IN FRONT OF ME ON THE WAY HOME, BUT THANKFULLY THE COLLISION WARNING SYSTEM EMITTED A LOUD SOUND AND I WAS ABLE TO REACT IN TIME TO PRESS THE BRAKES AND AVOID THE COLLISION. THERE WAS A RECALL ON 3/10/2015 FOR VEHICLES MANUFACTURED BETWEEN APRIL 7, 2014, AND JULY 25, 2014, FOR AN ISSUE WITH THE FUEL DELIVERY MODULE AND THE TANK, MY VEHICLE WAS MANUFACTURED JANUARY 2015, HOWEVER, I BELIEVE THE SAME ISSUE IS CAUSING THE GASOLINE FUMES I HAVE BEEN EXPERIENCING IN MY VEHICLE AC SYSTEM.
Air bags, Jan 27, 2020
TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES-BENZ C250. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT STATED THAT MERCEDES-BENZ OF POMPANO SERVICE CENTER (LOCATED AT 350 W COPANS RD A, POMPANO BEACH, FL 33064) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER HAD NOT BEEN MADE AWARE OF THE ISSUE. THE PART WAS NOT AVAILABLE FOR THE REPAIR. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
Steering, Fuel/propulsion system, Jan 23, 2020
GAS SMELL COMING FROM CABIN EVERY TIME I PUT HEAT ON ,COME TO FIND OUT DEALERSHIP INFORMED ME THERE WAS A LEAK ON GAS HOSE AND NOT COVERED BY THE WARRANTY I HAVE, ONLY HAD THE CAR FOR A YEAR DIDN'T DRIVE MY CAR IN FEAR WILL EXPLODE PLUS IM A SMOKER SO I COULD OF HAVE BLOWN UP, PLUS BATTERY THEY SAID WAS WEAK NEEDS TO B REPLACE ,AGAIN I BARELY DRIVE AND ONLY HAD MY CAR FOR A YEAR CPO EVERYTHING SHOULD OF BEEN NEW AND RUNNING PERFECT
Fuel/propulsion system, Jan 18, 2020
GAS SMELL COMING FROM THE ENGINE WHEN STARTING THE CAR. THE GAS SMELL GOES AWAY BUT COMES BACK EVERYTIME I START THE CAR.
Fuel/propulsion system, Jan 7, 2020
2015 MERCEDES BENZ C300 WITH 65 K MILES. THE SECONDARY HIGH PRESSURE FUEL PUMP (274070050180) LEAKED GAS SERIOUSLY. IT WAS THE UNIT ITSELF NOT THE CONNECTIONS OR LINES TO IT.
Fuel/propulsion system, Dec 27, 2019
A FEW DAYS AGO, I BEGAN SMELLING A STRONG SMELL OF GASOLINE WHEN I DROVE MY CAR. THIS WENT ON FOR SEVERAL DAYS, SO I TOOK MY CAR INTO THE DEALERSHIP. AS SOON AS I DESCRIBED MY PROBLEM TO THE SERVICE STAFF AND BEFORE THEY CHECKED ME IN, THEY ASKED ME IF THE MODEL WAS A MERCEDES C300. WHEN I REPLIED THAT IT WAS, THEY SAID THAT THEY HAD SEEN THIS PROBLEM QUITE OFTEN ON THIS MODEL. GIVEN THE LOW MILEAGE OF 23,115 MILES ON MY CAR, A FUEL LINE LEAK WOULD NOT NORMALLY BE EXPECTED TO OCCUR. CONSIDERING THAT FACT ALONG WITH THE REPORTED COMMONALITY OF THIS ISSUE, I AM CONCERNED THAT, FOR OTHER DRIVERS WITH THIS POTENTIAL PROBLEM, THE SYMPTOMS MAY INVOLVE MORE THAN JUST THE SCENT OF GASOLINE AND RESULT IN CAR FIRES OR ACCIDENTS. NEITHER THE DEALERSHIP NOR CORPORATE MERCEDES HAVE BEEN RESPONSIVE TO MY CONCERNS.
Engine, Dec 26, 2019
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE ENGINE HAD BEEN SHUTTING OFF EVER SINCE THE VEHICLE WAS PURCHASED IN 2016. IN ADDITION, SEVERAL UNKNOWN WARNING INDICATORS WOULD ILLUMINATE FOR NO REASON. MERCEDES-BENZ OF GEORGETOWN (7401 S INTERSTATE 35, GEORGETOWN, TX 78626, (512) 930-6150) STATED THAT THE ENGINE WAS DEFECTIVE. THE DEALER STATED THAT THEY PREVIOUSLY REPAIRED THE ENGINE UNDER WARRANTY AND WOULD NOT DO IT AGAIN. MERCEDES-BENZ OF AUSTIN (6757 AIRPORT BLVD, AUSTIN, TX 78752, (512) 220-0940) CALLED THE OTHER DEALER AND INFORMED THEM NOT TO REPAIR THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 20.
Fuel/propulsion system, Dec 25, 2019
FUEL SYSTEM, GASOLINE. THERE IS A FUEL SMELL COMING INSIDE OF THE CAR THROUGH THE FRONT FILTERS. WE HAVE CHANGED FUEL INJECTOR RING HOWEVER THE SMELL IS STILL THERE. MERCEDES DEALER IS NOT WILLING TO DO ANYTHING ABOUT THIS. I SEE THERE ARE RECALLS ON THE SAME MODELS PRODUCED A YEAR PRIOR. BELIEVE THIS MIGHT BE THE SAME ISSUE THAT WAS NOT RESOLVED . NHTSA CAMPAIGN ID: 15V138000 ## VIN PASSED ## MERCEDES-BENZ C300 2015 ##
Engine, Dec 23, 2019
BOUGHT USED MERCEDES C300 2015 4MATIC ON FEB'2019, ODOMETER READING WAS 44K MILES WITH CLEAN CARFAX REPORT. AFTER DRIVING JUST ABOUT 7K MIKES MORE, AT 53K MIKES CAR SHOWS ENGINE WARNING. THIS IS UNFORTUNATE FROM MERCEDEZ THAT WITH THIS MUCH OF NIRMAL USE, CAR IS HAVING ENGINE ISSUES.
Fuel/propulsion system, Dec 22, 2019
GASOLINE FUEL HOSE LEAK BETWEEN THE ENGINE AND THE DRIVER SIDE CAUSING A STRONG GASOLINE SMELL INSIDE THE CABIN AND UNDER THE HOOD WHEN THE CAR IS RUNNING AND CAUSING A FIRE HAZARD
Engine, Dec 20, 2019
WHILE THE VEHICLE IN MOTION, HEARING A LOUD SOUNDS COMING FROM THE ENGINE. AT FIRST IT'S SOUNDED LIKE A ROCK IN A TIN CAN, LATER IT WAS A SLAPPING SOUND. ABOUT 10 MINUTES LATER FINALLY GOT OFF THE HIGHWAY AND TURNED IN TO MY NEIGHBOR HOOD. AT THE LAST RIGHT TURN, THE CAR SEIZED UP. TRIED TO RESTART NOTHING HAPPENED. GOOD THING IT WAS AROUND 11PM THERE WAS NO TRAFFIC OR AS MANY CARS ON THE ROAD. IF IT WERE IT COULD PROBABLY JUST STOP ON THE MIDDLE OF THE HIGHWAY. THE CAR IS AT THE DEALERSHIP AND SAYING IT NEEDS A NEW ENGINE, COSTING ABOUT 13K. WHICH IS ABSOLUTELY RIDICULOUS, THERE WAS NO SIGNS OF ENGINE PROBLEM, ENGINE LIGHT WASN'T ON. OUT OF NO WHERE, ENGINE LOCKED UP AND I HAD TO PUSH IT HOME.
Electrical system, Electronic stability control (ESC), Dec 20, 2019
WHILE I WAS TRAVELLING ON HIGHWAY, I GOT AN ALERT ABOUT COLLISION SYSTEM BEING INOPERABLE, I TOOK MY CAR TO THE DEALERSHIP, IT WAS INVESTIGATED AND WAS TOLD TO ME THAT I HAD AN ACCIDENT? I DID NOT. I AM THINKING IT WAS SOME KIND OF AN ELECTRICAL/RADAR SENSOR ISSUE? IT DID NOT AFFECT MY SPEED OR ABILITY TO ACCELERATE
Seat belts, Wheels, Dec 3, 2019
BACK DRIVER SIDE SEAT BELT HARD TO ENGAGE AND WILL COME UNENGAGED WITHOUT PROMPTING. BRAKE PADS WEAR OUT EVERY 30,000 MILES BACK PASSENGER SIDE TIRE AND VALVE HAS BEEN REPLACED 4 TIMES IN LESS THAN 70,000 MILES AND STILL LOOSES AIR INTERMITTENTLY. CAR CAN BE PARKED OR MOVING. NO CONSISTENCY IN WHEN OR AMOUNT AIR PRESSURE IS LOST.
Fuel/propulsion system, Nov 22, 2019
STRONG FUEL SMELL IN THE GARAGE AND INSIDE THE VEHICLE DURING COLD START AFTER THE VEHICLE IS PARKED FOR 8-12 HOURS. THE ISSUE IS EVEN MORE NOTICEABLE DURING COLDER WEATHER (BELOW 40). THE DEALER ACKNOWLEDGED THIS IS A COMMON ISSUE FOR C300 AND IS DUE TO A DEFECTIVE CLAMP ON A FUEL LINE. THE VEHICLE IS AT 44,000 MILES AND 6 MOUNTS OUT OF WARRANTY. THE FUEL LEAK IS A SAFETY ISSUE AND SHOULD BE REPAIRED BY THE MANUFACTURER ESPECIALLY IF IS A WELL KNOWN DEFECT.
Fuel/propulsion system, Nov 14, 2019
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300W4. WHEN THE CONTACT ENTERED THE VEHICLE, HE NOTICED A FUEL ODOR. WHILE THE VEHICLE WAS STOPPED AT A TRAFFIC LIGHT, IT STALLED AND BEGAN TO ROLL BACKWARDS WITHOUT WARNING. THE CONTACT TOOK THE VEHICLE TO MERCEDES-BENZ OF PARAMUS (755 NJ-17, PARAMUS, NJ 07652, (201) 977-6365) AND WAS INFORMED THAT THE FUEL HOSE AND THE FUEL LINE NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND OFFERED LITTLE ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 30,000.
Fuel/propulsion system, Nov 7, 2019
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300W4. WHEN THE CONTACT ENTERED THE VEHICLE, SHE NOTICED A STRONG ODOR OF FUEL. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF FARMINGTON (555 N BOURNE CIR, FARMINGTON, UT 84025, (801) 447-3300) WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED A 20% DISCOUNT TOWARDS THE REPAIR COST. THE CONTACT WAS INFORMED TO CALL NHTSA TO FILE A COMPLAINT. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBER: 15V138000 (FUEL SYSTEM, GASOLINE). THE FAILURE MILEAGE WAS APPROXIMATELY 54,971.
Engine, Nov 4, 2019
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. WHILE THE CONTACT'S DAUGHTER WAS DRIVING AT AN UNKNOWN SPEED, THE VEHICLE FAILED TO ACCELERATE AND BEGAN TO HESITATE. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE DRIVER WAS ABLE TO PARK ON THE SIDE OF THE ROAD. THE VEHICLE WAS TOWED TO MERCEDES-BENZ OF STEVENS CREEK (LOCATED AT 4500 STEVENS CREEK BLVD, SAN JOSE, CA 95129, (408) 641-4610) WHERE IT WAS DIAGNOSED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 58,000.
Fuel system, Gasoline, Oct 27, 2019
THERE IS A FUEL HOSE (PARTS NUMBER: 274 070 3500) CONNECT TO THE HIGH PRESSURE PUMP IN FRONT ENGINE AREA. THE FUEL HOSE WAS FASTENED BY A CLAMP (NOT SURE THE PARTS NUMBER) . BECAUSE OF THE DESIGN FLAW, THIS CLAMP WILL LOOSE SINCE IT'S A SNAP JOINT ASSEMBLIES NOT TIGHTEN BY SCREWS. UNDER THIS SITUATION, THE FUEL HOSE WILL LOOSE AND AFFECTED BY THERMAL EXPANSION, THIS PROBLEM WILL CAUSE FUEL LEAK/SEEPING. WE CAN SMELL FUEL NEAR THE PUMP BEFORE WE START CAR IN COLD IN THE MORNING AND THIS SMELL CAN BE SMELLED UNTIL THE ENGINE WORKING INTO THE NORMAL OPERATING TEMPERATURE. FUEL IS A VERY CRITICAL SAFETY PROBLEM AND USUALLY WE CANNOT TAKE NOTICE OF THIS POTENTIAL PROBLEM.