2012 Mercedes-Benz C-Class Engine

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. UPON STARTING THE VEHICLE, A LOUD NOISE WAS HEARD COMING FROM THE ENGINE COMPARTMENT AND THE SERVICE ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE CONTACT WAS ADVISED THAT THE CAMSHAFT AND TIMING CHAIN NEEDED ADJUSTMENT. THE DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 56,000.

WHILE STARTING ENGINE LIGHT CAME ON. WOULD NOT GO AWAY. TOOK TO MERC DEALER,TOLD CAMSHAFT FAILURE. REPLACEMENT COST 5865 DOLLARS. CAR SERVICED AT DEALERSHIP AS PER RECOMMENDATIONS. SEVERAL BLOGS REPORT SIMILAR ISSUE BY DIFFERENT CUSTOMERS. SIMILAR ISSUE IN E 350 ON 2006 MODEL. MERC SEEMS TO AWARE OF THIS ISSUE.

AFTER ONLY 75K MILES MY MB HAS A FAILING PART THAT IS WELL KNOWN AMONGST ALL MB DEALERSHIPS. THE CAM SHAFT ADJUSTMENT UNITS BOTH INTAKE AND EXHAUST HAVE FAILED, CAUSING ME TO UNDERTAKE REPAIRS IN EXCESS OF $3K. FOR SUCH A NEWER VEHICLE THIS IS UNCONSCIONABLE AND MANY DEALERSHIPS AROUND THE PHOENIX AREA HAVE KNOWN ABOUT THIS ISSUE FOR AWHILE AND HAVE EXPRESSED SHOCK THAT THIS HASN'T BEEN A RECALL ISSUE YET. I KNEW THERE WAS AN ISSUE WITH MY MB WHEN I STARTED IT UP AND THERE WAS A RATTLING NOISE COMING FROM THE ENGINE PORTION OF THE VEHICLE. EACH SHOP AND DEALERSHIP I'VE TAKEN IT TO HAVE NOTED IT AND HAVE STATED THAT REPAIRS RANGE FROM $3K TO $4.8K. SIMPLY UNACCEPTABLE. I AM HOPING THE NHTSA WILL INVESTIGATE AND RECALL THIS CAR FOR THIS ISSUE AS IT IS A WELL-KNOWN ISSUE AND NEEDS TO BE ADDRESSED.

ENGINE LIGHT CAME ON , THE CAR HESITATED TO TURN ON AT TIMES, SOMETIMES HAD TO PRESS THE GAS PEDAL TO HAVE VEHICLE TURN ON. TOOK IT TO LOCAL BENZ SHOPS THAT CLAIMED TO WORK ON BENZ, THEY SAID THEIR COMPUTER COULD NOT DETERMINE THE CODE. SO TOOK IT TO THE DEALER IN FORT MYERS, FL. WAS TOLD IT WAS THE TIMING CHAIN AND THE 2 CAM SHAFTS. WAS QUOTED $5032. SO HAD TO OTHER CHOICE THAN TO HAVE THEM REPAIRED. ONLY RECEIVED THE MANAGERS DISCOUNT OF $150 (WOW). I READ THAT MANY OTHER OWNERS HAVE THE SAME PROBLEM AND THEY WILL NOT RECALL . THEY HAVE RECALLED OLDER MODELS LIKE 2006 FOR THIS SAME TYPE OF ISSUE. BUT OF COURSE SEEMS THAT MERCEDES BENZ HAS NO PRESTIGE. ALSO NOTE THIS CAR ONLY HAS 41,000 MILES IN MINT SHAPE TAKE GOOD CARE OF IT. VERY , VERY DISAPPOINTED WITH MERCEDES BENZ, DON'T GET STUCK BUYING A VEHICLE THAT IS NOT DEPENDABLE. THIS MODEL HAS TOO MANY ISSUES.

2012 MERCEDES BENZ C250W. CONSUMER WRITES IN REGARDS TO OIL COOLANT HOUSING REPAIR. *LD THE CONSUMER REQUESTED TO BE REIMBURSED FOR WORK THAT WAS NOT DONE PROPERLY, OR AT ALL. *JS

MY C250 HAS ONLY 62,000 MILES. LAST MONTH, IGNITION COIL BROKE, SO I SPENT ABOUT $300 TO REPAIR THAT. ONLY 2 DAYS AFTER I FIXED THE PROBLEM, THE ENGINE INTAKE AND EXHAUST CAM SHAFT ADJUSTERS, TIMING CHAIN TENSIONER BROKE. TOTAL REPAIR COST OF ABOUT $4,000. HOW CAN A VEHICLE THAT HAS ONLY 62,000 MILES HAVE ALL THOSE MAJOR MECHANICAL PROBLEMS? I KNOW I PURCHASED A LEMON. I CALLED AND TALKED TO BENZ CUSTOMER SERVICE REP IN NEW YORK AREA. ORIGINALLY HE TOLD ME THAT HE SURE MADE IT SOUND LIKE THEY BENZ WILL PAY FOR A BIG CHUNK OF TOTAL REPAIR BILL. AND PROMISED TO ME THAT HE WILL GET BACK TO ME WITH AN ANSWER WITHIN FEW DAYS. I CALLED HIM MANY TIMES AND MY WIFE CALLED HIM AS WELL. NEVER A REPLY FOR OVER A MONTH. OUT OF FRUSTRATION, I TRIED TO FIND HIS SUPERVISOR. ONLY AFTER I TRY TO TALK TO HIS SUPERVISOR, THE CUSTOMER REP CALLED ME UP AND OFFER 10% OF REPAIR COST. HE BLAME ME FOR NOT TAKING MY BENZ TO FOR ALL MECHANICAL ISSUES DURING POSSESSION OF MY VEHICLE. THAT IS THE REASON WHY BENZ OFFERED TO PAY FOR 10% OF REPAIR COST. SO I TOLD HIM. BENZ SALESMAN NEVER MENTIONED THAT TO ME. IF IN FACT, I HAD TO TAKE MY VEHICLE TO BENZ DEALERSHIP FOR ANY REPAIRS TO GET BETTER SERVICE DISCOUNT, I WOULD HAVE TAKEN IT TO BENZ DEALERSHIP. THEY NEVER MENTION NO SUCH THING, AND NOW MAKING EXCUSE TO BLAME ME FOR THEM SELLING ME A LEMON. I AM SO DISAPPOINTED BY QUALITY AND CUSTOMER SERVICE OF MERCEDES BENZ COMPANY.

ENGINE WAS STALLING UPON INITIAL STARTUP. TOOK TO MERCEDES AND RECEIVED AN ESTIMATE FOR $4500 FOR A NEW TIMING CHAIN AND CAM ADJUSTERS. THE CAR ONLY HAS 46000 MILES ON THE ODOMETER. AFTER SEARCHING THE BLOGS, I FIND THAT THERE ARE HUNDREDS OF COMPLAINTS ABOUT THIS EXACT ISSUE. WHY ISN'T THERE A RECALL OR TSB ON THIS?

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE ENGINE COMPARTMENT WHEN THE VEHICLE WAS STARTED. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TOWED TO MERCEDES-BENZ OF SAN DIEGO IN SAN DIEGO, CA WHERE IT WAS DIAGNOSED THAT THE CAM SHAFT ADJUSTER WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE FAILURE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED, BUT ONLY OFFERED THE CONTACT A DISCOUNT TOWARDS THE COST OF THE REPAIR. THE FAILURE MILEAGE WAS APPROXIMATELY 49,000. THE VIN WAS NOT AVAILABLE.

WHEN STARTING UP THE VEHICLE MAKE A TERRIBLE NOISE THAT LAST FOR 3-4 SECONDS BEFORE IT GOES AWAY. THE VEHICLE WAS VERIFIED BY A MERCEDES TECHNICIAN AND THE DIAGNOSTICS CAME BACK STATING AN ISSUE WITH THE "CAMSHAFT ADJUSTERS (INTERNAL FAULT)". I WAS TOLD THIS CONDITION WILL GET WORSE AND FINALLY ENGINE WILL STALL AND MAJOR DAMAGES WILL HAPPEN. WORST SCENARIO COULD PRODUCE BENT VALVES AND WILL REQUIRE A MAJOR ENGINE OVERHAUL WITH JUST 48,304 MILES ON IT. APPARENTLY, C250S ARE HAVING THIS ISSUE AND CUSTOMER ARE PAYING THE CONSEQUENCES FOR A DEFECTIVE PRODUCT. BY THE WAY, ENGINE HAS BEEN PERFECTLY MAINTAINED WITH MOBIL 1 (OW-40) AND ORIGINAL FILTER EVERY 5,000 MILES INSTEAD OF THE 10,000 MILES INTERVAL RECOMMENDED BY THE MANUFACTURER. THIS CONDITION COULD LEAD TO A MAJOR FAILURE WHILE DRIVING THE VEHICLE THAT COULD END UP INTO AN ACCIDENT.

PURCHASED MY 2012 C250 WITH 45K MILES ON IT AT TIME OF PURCHASE. I PUT 4K MILES AND I STARTED HEARING A TICKING NOISE ON START UPS THEN PROGRESSED. IT HAS TURNED OFF ON ME WHILE DRIVING AT ABOUT 35 MPH AND ANOTHER AT 25 MPH KINDA SCARED TO DRIVE IT. YOU THINK WHEN YOU PAY FOR QUALITY YOU SHOULD GET IT, NOT HAVING TO $5500 FOR A CAMSHAFT LIFTER REPLACEMENT IN UNDER THE FIRST 50K MILES THAT' INSANE! PLEASE SEND FEED BACK IN GOING TO TALK TO LAWYERS AND GET THERE VIEW ON THE SITUATION BECAUSE THERE'S MORE THEN JUST A COUPLE WITH THIS PROBLEM AND SOME WITH VARY LOW MILES. THANKS FOR YOUR TIME MUCH APPRECIATED .

ROUGH START IN THE MORNING, CHECK ENGINE LIGHT CAME ON. TOOK IT TO THE MERCEDES BENZ DEALERSHIP AT BUCKHEAD GA. WAS TOLD THAT THE CAM ADJUSTERS NOT FUNCTIONING. ESTIMATED REPAIR COST $4000.

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. UPON STARTING THE VEHICLE, A RATTLING NOISE WAS HEARD COMING FROM THE ENGINE AND THE SERVICE ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED WITH A CAM SHAFT ISSUE, AND THE TIMING CHAIN AND SPROCKETS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND INFORMED THE CONTACT THAT THERE WAS A RECALL, BUT THE VEHICLE YEAR WAS NOT INCLUDED. THE FAILURE MILEAGE WAS UNKNOWN.

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. WHEN STARTING THE VEHICLE, THERE WAS A GRINDING NOISE COMING FROM THE ENGINE AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO G2 AUTOMOTIVE MERCEDES-BENZ (5935 PARKWAY NORTH BLVD, CUMMING, GA 30040 PHONE NUMBER: (678) 515-9807) WHERE IT WAS DIAGNOSED THAT THE ENGINE NEEDED A NEW TIMING CHAIN TENSIONER REPLACEMENT. THE VEHICLE WAS BEING REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.

CAR STATIONARY, HESITANT TO START, WHEN STARTED 2-4 SECONDS, THUMPING NOISE. TOOK CAR TO DEALER FOR DIAGNOSIS. FOUND "INTAKE CAMSHAFT POSITIONER" FAULTY, REPAIR $4000!

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250W. WHEN THE ACCELERATOR PEDAL WAS APPLIED, THE VEHICLE STALLED WITHOUT WARNING. ADDITIONALLY, THE VEHICLE MADE AN ABNORMAL RATTLING NOISE. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (MERCEDES-BENZ OF ST CLAIR SHORES LOCATED AT 20200 E NINE MILE RD SAINT CLAIR SHORES, MI 48080 586-773-2369) WHERE IT WAS DIAGNOSED THAT THE CAMSHAFT ADJUSTERS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT OFFER ANY ASSISTANCE. THE FAILURE MILEAGE WAS 68,000.

SOMETIMES WHILE DRIVING MY CAR IT WILL STUTTER AS IF IT WANTS TO TURN OFF WHILE DRIVING. ADDITIONALLY, WHEN STARTING UP THE VEHICLE IT STALLS BEFORE ACTUALLY TURNING OVER. THE CHECK ENGINE LIGHT CAME ON AND THE VEHICLE WAS TAKEN TO A CERTIFIED MERCEDES DEALERSHIP AND THE DIAGNOSTICS CAME BACK STATING A ISSUE WITH THE "CAMSHAFT ADJUSTERS (INTERNAL FAULT)". APPARENTLY, FIRST GENERATION C250S ARE HAVING THIS ISSUE BUT IT HAS SINCE BEEN CORRECTED WITH LATER GENERATIONS.

TIMING CHAIN ON THE VEHICLE STRETCHES OUT OVER TIME. THIS CAUSES THE VEHICLE TO NOT START PROPERLY AND CAN SNAP WHILE DRIVING AND STOP THE CAR IN THE MIDDLE OF TRAFFIC AND DRIVING. THERE IS NO SERVICE RECOMMENDATION FOR THE TIMING CHAIN AND USUALLY STARTS GIVING TROUBLE AFTER THE VEHICLE'S WARRANTY HAS EXPIRED. I HAVE NOT HAD MY CAR STOP IN TRAFFIC BUT THERE ARE MANY COMPLAINTS ON THE MERCEDES BENZ FORUMS.

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. WHILE ATTEMPTING TO START THE VEHICLE, THE CONTACT NOTED A CHOKING AND KNOCKING SOUND IN THE ENGINE. THE CHECK ENGINE INDICATOR ALSO ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE CAM SHAFT TENSIONER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE CHECK ENGINE INDICATOR DID NOT ILLUMINATE THIS TIME. THE VEHICLE WAS TAKEN TO THE DEALER AGAIN WHERE IT WAS DIAGNOSED THAT THE CAM SHAFT TENSIONER ON THE OTHER SIDE OF THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT ATTEMPTED TO NOTIFY THE MANUFACTURER, BUT THE CONTACT WAS PLACED ON HOLD FOR 1.5 HOURS AND THEN DISCONNECTED. THE APPROXIMATE FAILURE MILEAGE WAS 57,000.

TL* THE CONTACT OWNED A 2012 MERCEDES-BENZ C250. WHILE THE VEHICLE WAS PARKED WITH THE ENGINE RUNNING, SMOKE SUDDENLY APPEARED UNDER THE HOOD AND FLAMES WERE PRESENT UNDER THE VEHICLE THE FIRE DEPARTMENT EXTINGUISHED THE FLAMES. THE VEHICLE WAS DESTROYED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 94,572. UPDATED 06/01/17*LJ UPDATED 09/18/2017*JS

MY CAR CAUGHT ON FIRE. I AM NOT SURE EXACTLY WHAT CAUSED IT OR WHERE IT STARTED, BUT THERE WERE FLAMES COMING OUT BETWEEN THE TIRE AND THE DOOR FRAME. THE CAR WAS ON WHILE I WAS PARKED IN A DRIVEWAY. I RAN A REPORT ON MY VEHICLE AND THE TENSIONER HAD BEEN REPLACED BEFORE I PURCHASED IT AND ALSO AFTER I PURCHASED IT. I BELIEVE IT MAY HAVE SOMETHING TO DO WITH THE V-BELT TENSIONER AS IT WAS ALWAYS MAKING SCREECHING SOUNDS. I JUST WANT TO KNOW HOW TO HAVE MY CAR INVESTIGATED FOR THE CAUSE OF THE FIRE.

WHEN STARTING THE CAR THE VEHICLE MAKE LOUD RATTLING NOISE AND THE ENTIRE CAR SHAKES. I TOOK THE CAR TO THE MECHANIC AND HE SAID IT IS THE CAMSHAFT ADJUSTER/ACTUATORS. WHICH NEED TO BE REPLACED ALONG WITH THE TIMING CHAIN. HE ALSO SAID IT IS NOT SAFE TO DRIVE AS THEY CAN FAIL AND CAR WILL STOP IN THE MIDDLE OF A ROAD. THE CAR WHEN TRYING TO ACCELERATE SOMETIMES DOESN'T WANT TO GO AND YOU CAN ACTUALLY FELL THE CAR JERK SEEMING AS THE CHAIN IS SKIPPING. IT HAS HAPPENED MULTIPLE TIMES. CAR HAS 67,000 MILES AND THIS STARTED HAPPENING AT 57K MILES.

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. WHILE THE VEHICLE WAS PARKED, THE VEHICLE MADE A LOUD CLANKING NOISE WHEN IT WAS STARTED. THE FAILURE OCCURRED CONSTANTLY. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE EXHAUST CAMSHAFT ADJUSTER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 57,219.

DEALER SAID THE CAMSHAFT ADJUSTER WITH CHAIN TENSIONER NEEDS TO BE REPLACE AT 65,000 MILES. ALSO THE HIGH PRESSURE PUMP NEEDS TO BE REPLACE TOO. THIS AFTER SPENDING OVER $773.06 HUNDRED DOLLARS ON ENGINE ANALYSIS. I DECLINE THE SERVICE BECAUSE IT WILL COST ME $5,324.98 TO GET THE JOB DONE. COULD THIS BE A SAFETY RECALL BECAUSE THE DEALER SAID ONE OF THIS DAYS IT MIGHT JUST STOP ON THE MIDDLE OF NOWHERE. NOW I AM DRIVING THIS VEHICLE WITH THE CHECK ENGINE LIGHT ON BECAUSE OF THE PROBLEM I MENTION ABOVE.

REF: NHTSA ID NUMBER: 10676804 SUMMARY: CAMSHAFT INTAKE ADJUSTER REPLACED THERMOSTAT SEALS REPLACED CHAIN TENSIONER REPLACED MY 2012 MB C250, WHILE STILL UNDER WARRANTY BY YEAR AND MILEAGE, WAS DECLINED TO BE SERVICE BY MERCEDES BENZ OF CUTLER BAY, FLORIDA. THERE REASONING IS THAT I DID NOT USE A MB OIL FILTER; THEY HAVE CANCELLED MY WARRANTY. EVEN THOUGH I HAVE DONE ALL THE PROPER OIL CHANGES SOONER THAT THE MB RECOMMENDATIONS.

CAMSHAFT INTAKE ADJUSTER REPLACED THERMOSTAT SEALS REPLACED CHAIN TENSIONER REPLACED. *TR