NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2009 Mercedes-Benz C-Class. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
Data synced from NHTSA on May 4, 2026
TL*THE CONTACT OWNS A 2009 MERCEDES C350. THE CONTACT STATED THAT WHEN THE ACCELERATOR PEDAL WAS ENGAGED, THE TRANSMISSION SURGED FORWARD AT A HIGH RATE. THE FAILURE OCCURRED INTERMITTENTLY. THE DEALER WAS UNABLE TO DUPLICATE OR DIAGNOSE THE FAILURE. THE FAILURE MILEAGE WAS 15 AND THE CURRENT MILEAGE WAS 32000.
BOUGHT A NEW 2009 C300 MERCEDES AT A DEALER IN SAN DIEGO. CAR HAS ROUGH IDLE AND SHAKES FOR 30 SECONDS IN THE MORNING. DEALER CHECKED AND FOUND NOTHING WRONG. THEY ARE BLAMING IT ON STRICT EMISSION ISSUES AS THE SOURCE OF THE ROUGH IDLE. HOOD DOES NOT LATCH UNLESS SLAMMED HARD. DEALER CLAIMED THEY HAD ADJUSTED LATCH BUT STILL THE SAME. *TR
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ C300. THE CONTACT STATED THAT THE VEHICLE WOULD FAIL TO START INTERMITTENTLY AND THE IGNITION SWITCH WOULD SPORADICALLY MISFIRE. THE MANUFACTURER ADVISED THAT THE VEHICLE WAS DUMPING FUEL INTO THE ENGINE WHEN THE IGNITION SWITCH WOULD MISFIRE. WHEN THE CONTACT WAS FINALLY ABLE TO START THE VEHICLE, IT WOULD VIBRATE EXCESSIVELY FOR APPROXIMATELY 15-20 MINUTES. THE MANUFACTURER PROVIDED A REPLACEMENT 2010 VERSION OF THE SAME VEHICLE WHILE THE 2009 MODEL WENT THROUGH A SERIES OF TESTS. THE SAME FAILURE OCCURRED IN THE 2010 MODEL. THE MANUFACTURER THEN ADVISED THAT THE FAILURE WAS NORMAL. THE FAILURE MILEAGE WAS 13 AND THE CURRENT MILEAGE WAS 2,900.
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ C300. THE CONTACT STATED THAT ALL THE REAR PASSENGER LIGHTING FAILED TO ILLUMINATE ON THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING WHERE IT WAS DIAGNOSED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V177000 (EXTERIOR LIGHTING). THE CORRODED CONNECTORS AND BULB HOLDERS WOULD NEED TO BE CHANGED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 40,000.
TAKATA RECALL. YET TO BE FIXED
MY DAUGHTER WAS IN A CRASH TODAY ON MAY 16, 2009 SHE WAS DRIVING MERCEDES 2009 C300 AND SHE SAID THAT THE STEERING WHEEL LOCK SUDDENLY BEFORE SHE CRASH, SHE WAS DRIVING ONLY AT 15MPH THAT WHY THE IMPACT WAS NOT SO SEVERE, WE ARE VERY LUCKY THAT SHE JUST HAS MINOR INJURIES. *TR
FIRST DAY WHEN RECEIVING MY KEYS FOR A BRAND NEW MERCEDES C350 2009 AT THE DEALERSHIP...ENGINE LIGHT TURNS ON. LATER FINDING OUT IT WAS THE FUEL SYSTEM NEEDED TO BE REPLACED. A MONTH LATER OF GETTING A BRAND NEW CAR CORROSION WAS FOUND IN THE TAILLIGHTS. THEN FINDING OUT CORROSION ON THE BRAKE PADS. MONTHS AFTER THIS THE POWER TRAIN WAS SLIPPING UP... THE RPMS OF THE CAR WOULD SURGE UP HIGH AND REMAIN STUCK AT HIGH RPMS. IF I ACCELERATED THE GAS IT WOULD SHOOT UP HIGHER TO HIGHER RPMS AND THE CAR WOULD MAKE THE NOISE BUT IT WOULDN'T MOVE. I THOUGHT IF I LET GO OF THE GAS THINKING THE RPMS WOULD RETURN BACK DOWN... BUT IT WOULDN'T...HUGE SAFETY ISSUE WHEN YOUR IN THE MIDDLE OF THE FREEWAY AND HAVE NO CONTROL TO DRIVE YOUR CAR. I WOULD HAVE TO PULL OVER SOME HOW AND TURN OFF THE CAR FOR THE RPMS TO COME BACK DOWN SO I CAN DRIVE IT AGAIN. I BROUGHT THE CAR BACK SEVERAL TIMES TO THE DEALERSHIP BUT THEY COULD NEVER DUPLICATE THE ISSUE. THEREFORE, NOTHING GOT FIXED OR REPLACED JUST CONSTANT SOFTWARE UPDATES WERE STATED WERE DONE. SOON AFTER TAKING MY CAR OVER 5+ TIMES FOR THIS SAME ISSUE, MY SRS STEERING MALFUNCTIONED. I GOT THAT REPLACED AND PAID FOR IT A YEAR AGO. NOW BACK TODAY EXACTLY 12 MONTHS LATER REPAIRING IT AGAIN - SRS MALFUNCTION...AGAIN STRANDED IN THE MIDDLE OF NO WHERE WAITING FOR A TOW TRUCK ALL ALONE. I HAVE BEEN TO THE DEALERSHIP REPAIRING MY CAR FOR SO MANY DIFFERENT THINGS, GETTING STRANDED, TOWING MY CAR, PAYING FOR ALL REPAIRS AND GIVING UP WEEKENDS AND WORK TIME TO GO TO THE DEALERSHIP. I HATE THIS CAR! THAT I'M ABSOLUTELY HAVE NO PEACE OF MIND, I DON'T FEEL SAFE, CAR IS NOT RELIABLE, HAS EXTREMELY POOR QUALITY. NOT WORTH IT AT ALL! *TR
I PURCHASED A C300 IN APRIL 2009, WITHIN A FEW DAYS I NOTICED A CRACK IN THE DRIVER SIDEVIEW MIRROR. I TOOK THE CAR TO THE DEALERSHIP AND THE SALESMAN THAT SOLD ME THE CAR TOOK CARE OF ARRANGING THE REPAIR. THEY HAD TO ORDER THE MIRROR AND GAVE ME A LOANER. I WAS NEVER GIVEN AN EXPLANATION AS TO WHAT CAUSED THE CRACK. *TR
TL* TAKATA RECALL. THE CONTACT OWNS A 2009 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V017000 (AIR BAGS); 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. THE MERCEDES-BENZ OF MEMPHIS DEALER (5389 POPLAR AVENUE, MEMPHIS, TN 38119, (901) 310-2215) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *TT UPDATED 9/24/18*JB
I BOUGHT A NEW 2009 MB C300 FOR MY WIFE LAST NOVEMBER, LESS THAN THREE MONTH LATER, ITS POWER STEERING QUITTED TO WORK WITHOUT ANY MALFUNCTION SIGN. IT WILL TAKE A PROFESSIONAL WRESTLER TO GET IN AND OUT ITS PARKING PLACE. THIS IS NOT THE WORST PART YET. AFTER NUMEROUS FAILED ATTEMPTS TRYING TO CONTACT THE SERVICE DEPARTMENT OF MY DEALER, I DROVE THE CAR TO THE DEALER THAT IS 40 MILES AWAY FROM MY HOUSE. ONLY THING THEY DID TO THE CAR WAS THAT A SERVICE REPRESENTATIVE OPENED THE HOOD AND ADDED SOME FLUID, WHICH LATE TURNED OUT TO BE USELESS. HE WANTED ME TO SET A SERVICE APPOINTMENT THAT WAS 15 DAYS LATER. I WAITED ALMOST TWO HOURS TRYING TO GET SOMEBODY TO TEST DRIVE MY CAR AND TELL ME IF IT'S SAFE TO DRIVE, WHICH THEY NEVER DID. RIGHT NOW, THE ONLY THING I CAN DO IS TO LOOK AT MY WORLD RENOWNED LUXURY SEDAN C300 MADE BY SUPERIOR GERMAN TECHNOLOGY SITTING IN MY CAR POT. WHAT A JOKE! *TR
I WAS INVOLVED IN A CRASH WHERE I WAS RUN OFF THE ROAD AND INTO A CENTER MEDIAN STEEL BARRIER. MY MERCEDES C300 IS EQUIPPED WITH ELECTRONIC STABILITY PROGRAM (ESP) AND ACTIVE SEATBELT RESTRAINTS (BOTH OF WHICH FAILED IN THE CRASH). THE ROADS WERE SLICK, HOWEVER, WHEN A CAR SWERVED OVER ON ME AND I ATTEMPTED TO HIT THE BRAKES TO AVOID BEING HIT, MY CAR BEGAN TO FISH-TAIL AND I LOST CONTROL OF THE VEHICLE. AT THE TIME, A WARNING LIGHT CAME ON INDICATING (POST-CRASH) THAT MY ESP MALFUNCTIONED. IN ADDITION, UPON IMPACT, MY SEAT RESTRAINED ME, HOWEVER, WHEN THE CAR BOUNCED BACK INTO THE CENTER OF THE HIGHWAY, THE SEATBELT CAME COMPLETELY DETACHED FROM WHERE IT'S HOLDER (WHERE YOU CLICK IT IN). THE REST OF THE SAFETY FEATURES WORKED (AIRBAGS, ACTIVE HEAD-REST RESTRAINTS, STEEL FRAMING, ETC.) HOWEVER, IF THE ESP FAILED OR MALFUNCTION, THEN THERE WAS NO POSSIBLE WAY TO PREVENT THE ACCIDENT BASED ON THE VEHICLES FAILURE TO DELIVER IN A PANICKED SITUATION. THE MERCEDES ESP PROGRAM IS SUPPOSE TO ENABLE THE DRIVER THE ABILITY TO CORRECT THE VEHICLE FROM OVERSTEER (FISH-TAILING) IN CRITICAL SITUATIONS, AND IT DID NOT DO SO. AT THE TIME, I WAS TRAVELING AT 55 MPH. THE BRAKE-ASSIST PROGRAM HELPED TO DECELERATE THE VEHICLE MINIMALLY, AND I SLAMMED INTO THE GUARDRAIL AROUND 50-55 MPH. I AM CONCERNED THAT THE ESP AND SEATBELT FAILED IN THIS CRASH. I'M VERY FORTUNATE TO HAVE SURVIVED THIS ACCIDENT. TOOK PICTURES FOR EVIDENCE, AND PLAN TO GO BACK TO THE CAR UPON REVIEW BY THE MERCEDES ACCIDENT SPECIALIST TO ACCESS WHY THERE WAS AN EVIDENT FAILURE IN BOTH OF THESE SAFETY FEATURES (CRITICAL TO PREVENTING SUCH AN ACCIDENT)! *TR
"TAKATA RECALL" WHAT PURPOSE DOES THIS RECALL SERVE IF THE MANUFACTURER STILL DOES NOT HAVE A "REMEDY" AVAILABLE? I HAVE 3 BENZ'S, ALL AFFECTED BY THIS RECALL AND FOR OVER 1 YEAR THE DEALER CANNOT REPAIR DUE TO "NO REMEDY YET AVAIL". SO IN THE MEANTIME, WE SHOULD DRIVE AND PRAY THAT SOMETHING TRAGIC DOES NOT OCCUR?
WITHIN A YEAR AND HALF, EVERY FEW MONTHS, I GET A NOTICE FROM MERCEDES BENZ COMPANY THAT THERE IS A SAFETY RECALL NOTICE ON AIRBAG INFLATORS PRIORITY GROUP 4. HOWEVER EVERY TIME THE NOTICE STATES THAT THE WILL BE AVAILABLE IN 3 MONTHS, BUT IT DOES NOT HAPPEN. THIS IS JUST BUYING TIME AND MAY BE FULL FILL SOME REGULATIONS. MEANWHILE CONSUMER LIKE ME IS IN DANGER AND THE FAULTY AIRBAGS CAN CAUSE MY DEATH IN CASE OF ACCIDENT. MERCEDES BENZ COMPANY NEEDS TO QUIT PLAYING AROUND AND DOT NEEDS TO GET INVOLVE.
TL*THE CONTACT OWNS A 2009 MERCEDES BENZ C300. WHENEVER THE CONTACT PLACED THE VEHICLE INTO REVERSE OR DRIVE I WOULD VIOLENTLY SWITCH INTO GEAR CAUSING THE VEHICLE TO SLIGHTLY SURGE FORWARD. THE VEHICLE HAS BEEN TAKEN TO THE DEALERSHIP ON THIRTEEN DIFFERENT OCCASIONS WHERE SEVERAL DIFFERENT PARTS HAVE BEEN SERVICED ON THE TRANSMISSION;HOWEVER THE CONTACT IS STILL EXPERIENCING THE FAILURE. THE CONTACT HAS NOTICED THE FAILURE SINCE THE VEHICLE WAS PURCHASED. THE CURRENT AND FAILURE MILEAGES WERE 14000.
I PURCHASED A 2009 MERCEDES BENZ C300 LUXURY SEDAN IN OCTOBER 2008 IN ATLANTA, GA. I DROVE THE CAR OFF THE LOT WITH 37 MILES ON THE ODOMETER. I HOUSE THE CAR IN MY GARAGE. I'D HAD THE CAR IN MY POSSESSION FOR A LITTLE LESS THAN TWO WEEKS WHEN I WOKE ONE CHILLY MORNING TO DISCOVER A CRACK IN THE DRIVER'S SIDE MIRROR. I IMMEDIATELY PHONED THE DEALERSHIP AND WAS TOLD TO BRING THE CAR IN FOR EVALUATION. SERVICE ASSESSED THE DAMAGE AND ADVISED ME THAT THEY'D RECENTLY (THE DAY BEFORE) BECOME AWARE THAT THE HEATING ELEMENTS WERE CRACKING THE MIRRORS IN THE C CLASS MODELS. THEY THEN APOLOGIZED FOR THE INCONVENIENCE, GAVE ME A LOANER CAR (FREE OF CHARGE) WHILE MY CAR WAS BEING REPAIRED (FREE OF CHARGE), AND ADVISED ME THAT, ALTHOUGH MERCEDES BENZ DOES NOT ALLOW PREEMPTIVE REPAIRS, THEY WOULD REPAIR THE PASSENGER SIDE MIRROR (FREE OF CHARGE) SHOULD IT CRACK IN THE FUTURE. THEY TOLD ME THAT THE PASSENGER SIDE WOULD BE FIXED EVEN IF THE WARRANTY HAD OTHERWISE EXPIRED. THE PART REPAIRED WAS THE AUTO DEFROSTING/ DIMMING DRIVER'S SIDE MIRROR. I'M UNSURE IF THIS DEFECT IS EXCLUSIVE TO THE C CLASS MODELS. *TR
TL*THE CONTACT OWNS A 2009 MERCEDES BENZ C300. THE CONTACT STATED THAT THE VEHICLE WAS EXPERIENCING SEVERAL COMPUTER DEFECTS. WHILE PARKED ON A HILL AND ATTEMPTING TO PLACE THE GEAR SHIFTER INTO REVERSE, THE VEHICLE WOULD ROLL FORWARD INSTEAD OF BACKWARDS. THE VEHICLE WOULD ROLL FORWARD APPROXIMATELY ONE FOOT AS IF IT WERE IN NEUTRAL. DURING THIS TIME, THE STEERING WOULD LOCK AND THE BRAKES WOULD LOSE POWER. IT WOULD TAKE TREMENDOUS FORCE TO DEPRESS THE BRAKE PEDAL AND STOP THE VEHICLE. THE DEALER AND MANUFACTURER COULD NOT ASSIST WITH THE REPAIRS. THERE WERE NO RECALLS AVAILABLE. THE DEALER COULD NOT DETERMINE THE CAUSE OF THE FAILURE. NO REPAIRS HAVE BEEN PERFORMED. THE VIN WAS UNKNOWN. THE FAILURE AND CURRENT MILEAGES WERE LESS THAN 7,000.
THE LEFT REAR TAIL LIGHTS STOPPED WORKING. I HAD TO REPLACE THE ELECTRICAL HARNESS ATTACHED TO THE BULB BRACKET. THIS WAS REPLACED ON 2/13/2013. EXACTLY ONE MONTH LATER, THE RIGHT REAR TAIL LIGHTS STOPPED WORKING ON 3/13/2013. I WILL HAVE TO REPLACE THE SAME ASSEMBLY OF PARTS. I HAVE NO DAMAGE TO THE REAR OF MY VEHICLE. MERCEDES BENZ HAD A RECALL ON THE (MERCEDES BENZ M-CLASS YEAR 2009) FOR THE REAR LIGHTS. *TR
TAKATA AIRBAGS AND MERCEDES-BENZ DOES NOT WANT TO REPLACE THEM. I LIVE IN HOUSTON TEXAS AND IT GETS VERY EXTREMELY HOT IN THE SUMMERTIME AND I UNDERSTAND THAT THE HEAT IS ONE OF THE REASONS THAT THESE AIRBAGS EXPLODED. MERCEDES-BENZ DOESN'T EVEN WANT TO SPEAK TO ME ABOUT REPLACING THE AIRBAGS.