2015 Mercedes-Benz C-Class Complaint Log

The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 50 MPH, the contact heard an abnormal flapping sound coming from the opened panoramic moon roof. The contact reached up into the open moon roof and discovered that the adhesive bonding on the front panel had started to deteriorate. The contact took the vehicle to the local dealer and was confirmed the failure however, the contact was informed that the dealer was not equipped to perform the repair. The contact was referred to Mercedes-Benz of Wilkes-Barre (150 Motorworld Dr, Wilkes-Barre, PA 18702) where the mechanic removed the bonded panel and installed a new front panel which the contact paid for out of pocket. The first dealer then notified the contact of NHTSA Campaign Number: 21V197000 (Structure) and instructed him to call the dealer where the vehicle was repaired. The second dealer was notified of the failure and informed him to call the manufacturer for potential reimbursement. The manufacturer was notified of the failure and informed him that the vehicle was not included in the recall. The vehicle was repaired. The failure mileage was approximately 68,000.

My daughter was driving at freeway speeds, when she heard, what we now know, is a portion of the sunroof panel flapping and break off. There was no warning, no instrument indication, and assume the broken part was a safety hazard to vehicles following. We took her vehicle to Fletcher Jones Mercedes in Newport Beach, but they're hesitating about repairing or reimbursing costs, due to the pending nature of the NHTSA Recall #21V197.

Constant fuel smell coming from the engine, you can see gas coming out of the high pressure line. When I park in the garage the whole house smells like gas. Even while driving gas smell coming through the vents constantly

I was in middle line on I-5 SB San Diego doing 40-60MPH when my car suddenly started to shudder, shake and smoke came from the exhaust. The car lost power and the check-engine light came on right away. I was told that Cylinder 3 lost pressure, that the engine wall was damaged and that possibly the piston and wrist pin are cracked. My car has only 66K miles and the Mercedes Benz dealership is telling me that I need a new engine that will cost $19,000. After doing some research I have found out that I wasn't the only one with this issue. I have listed an example here: "HERE IS A MAJOR ISSUE WITH THE 2015 M274 MERCEDES ENGINE REGARDING THE WRIST PINS. MERCEDES HAS ISSUED NUMEROUS INTERNAL SERVICE BULLETINS ABOUT THE ISSUE. THE ENGINES WERE MANUFACTURED WITH WRIST PINS WITH TOO MUCH TOLERANCE THAT SLAP AGAINST THE PISTON WHEN OPERATING THAT COULD LEAD TO PREMATURE ENGINE FAILURES. THERE ARE HUNDREDS OF COMPLAINTS ON ONLINE FORUMS OF PREMATURE ENGINE FAILURES (PRE 100K MILES)." MBUSA requested from me proof that the car was serviced on time and with the correct parts. Once I was able to prove everything they told me that they were sorry but I still need to pay for everything. They did offer a "10% good-will discount". I wish they told me when I was buying a car that after every 6th oil change I will need a new engine. PLEASE MAKE MERCEDES MAKE THIS RIGHT AND FIX THE AFFECTED CARS THE RIGHT WAY.

Driving down the interstate and half of the stationary roof panel dislodged. Luckily no accidents occurred due to the malfunction. The other half is still loosely attached and I am worried it could cause an accident if it detaches . I have emailed and called headquarters as well as my local dealership and no one has the ability to fix the problem and cannot confirm if I choose to pay out of pocket, that I will be reimbursed. There is a recall and it’s #21V197. At this point I want some sort of solution so I can ensure the safety of myself and those driving around me.

I would like to bring to your attention a potentially dangerous design flaw in my 2015 Mercedes C300. That design flaw resulted in me having to cut the seat belt off a passenger, my wife, in order to free her from the car. I will also explain in detail the admittedly rare circumstances that led to this potentially dangerous incident. In May 2021, my wife underwent outpatient surgery of her left shoulder. After the surgery a nurse brought my wife to the curb in front of the hospital, where I had pulled up my car. The nurse and I assisted my wife with her transfer from the wheel chair into the passenger seat. My wife was wearing a sling supported by a spacing pillow on her left arm. The nurse then proceeded to fasten the seat belt around my wife. Since the nurse’s procedure is of importance to this incident, I will explain it in detail. After my wife was seated, the nurse unwound the passenger seat belt entirely and inserted the belt tongue into the buckle so that the lap part of the seat belt went properly around my wife’s lap. To protect the fresh surgical site from external forces, the nurse then placed the part of the seat belt that is normally worn across the chest BEHIND my wife’s back. Had the seat belt been placed properly across my wife’s chest, it would have been forced to pass over her left arm, which was tied to her body by the sling and bandages. It was thus not possible to wear the chest part of the seat belt properly over the chest but under the left arm. Lastly, the nurse allowed the fully extended seat belt to wind up onto the pretensioner. Upon arrival at home I wanted to take the seat belt off my wife. To this end I opened the passenger door, and gently pulled on the seat belt in order to slacken it enough to get the seat belt off her. However, I could not get any slack. Per instructions in the user manual, I opened the belt buckle but the belt was tightly wound around my wife's body. Ultimately, I had to cut the belt with scissors.

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.

The contact owns a 2015 Mercedes-Benz C300. The contact stated that the sun roof ceased in the open position. The contact stated that the adhesive on the paneling had deteriorated which caused the sun roof to lose functionality. The vehicle was not taken to the local dealer. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 21V197000 (STRUCTURE) however, the vin was not included. The manufacturer was informed of failure and informed the contact that the vehicle was not included in the recall. The failure mileage was approximately 61,000.

check engine light and check oil light came on in rush hour traffic in atlant during rush hour. Car started sputtering and finally made it to the shoulder of the interstate and oil was low on the dip stick. I added oil and a day later same thing. Took it to the dealer and cracked piston in #1 cylinder service guy said about 3 to 6 a day on this year benz.

Air bags did not deploy on car accident and also traction control was not working, steering wheel will go to the side when driving under 40 MPH which is dangerous and car will slide when driving on puddle of water whenever it rained.

The contact owns a 2015 Mercedes Benz C300. The contact received notification of NHTSA Campaign Number: 21V197000 (STRUCTURE) however, the part to do the recall was unavailable. The contact stated on June 18, 2021, while driving 55 mph, the roof plastic panel detached and flew into oncoming traffic. The contact stated no one was injured. The contact called the local dealer and was informed that the part was not available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 59,000. VIN tool confirms part not available.

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.

Passenger side airbag light keeps coming on when someone is sitting in the car. My electrical system shuts off and on and goes haywire

The contact owns a 2015 Mercedes-Benz C300. The contact stated that there was a crack on the front panel of the panoramic roof. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed or repaired. The contact researched online and found that the roof panel was included in NHTSA Campaign Number: 21V197000 (Structure). The manufacturer had been informed of the failure and the contact was informed that the VIN was not included. The failure mileage was approximately 50,000.

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.

GAS LEAK/ SMELL IN CABIN AT IDLE

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

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.

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER MERCEDES-BENZ OF LOS ANGELES (1801 S FIGUEROA ST, LOS ANGELES, CA 90015, (213)425-3100) AND THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 78,000.

THERE IS A MAJOR ISSUE WITH THE 2015 M274 MERCEDES ENGINE REGARDING THE WRIST PINS. MERCEDES HAS ISSUED NUMEROUS INTERNAL SERVICE BULLETINS ABOUT THE ISSUE. THE ENGINES WERE MANUFACTURED WITH WRIST PINS WITH TOO MUCH TOLERANCE THAT SLAP AGAINST THE PISTON WHEN OPERATING THAT COULD LEAD TO PREMATURE ENGINE FAILURES. THERE ARE HUNDREDS OF COMPLAINTS ON ONLINE FORUMS OF PREMATURE ENGINE FAILURES (PRE 100K MILES). I CONTACTED MERCEDES AND THEY REFUSE TO DO ANYTHING TO FIX THIS PROBLEM THE REPAIR IS WELL OVER $8,000 AND THE AVERAGE PERSON JUST CAN NOT AFFORD IT. YOU DIAGNOSE THE PROBLEM BASED ON CHATTER DURING DECELERATION. PLEASE MAKE MERCEDES MAKE THIS RIGHT AND FIX THE AFFECTED CARS THE RIGHT WAY. I JUST BOUGHT THIS CAR AND I AM NOW IN THE HOLE OVER $20,000

WHILE DRIVING ON THE HIGHWAY MY MY MERCEDES BENZ C300 2015 WITH 37000 MILES ,ENGINE BROKE, AND YOU ARE NOT EXPECTING THAT WHEN YOU ARE DRIVING AT 65 MPH. THE MECHANIC IS SAYING IT IS A WRIST PIN AND A CRACKED #1 PISTON AND IT IS A VERY COMMON ISSUE ON THAT CAR AND MERCEDES REFUSES TO RECALL OR FIX THE PROBLEM IM GOING TO LEAVE A LINK WITH ONE OF THE MANY WEBPAGES WITH AL LOT OF PEOPLE COMPLAINING ABOUT THAT PROBLEM. THANK YOU. HTTPS://MBWORLD.ORG/FORUMS/C-CLASS-W205/731642-W205-C300-STAY-AWAY-PISTON-CRACKED-65-K-MILES.HTML

I HAVE THE SAME PROBLEM ABOUT STEERING HARDER WHEN ON LOWER SPEED, EVERY OIL LEVEL LOOKS TO BE PERFECT.

GAS LEAK IN FUEL LINE, WHILE RECEIVING AN OIL CHANGE FROM A LICENSED MECHANIC, HE BROUGHT TO MY ATTENTION THAT, THERE WAS FUEL LEAKING FROM THE FUEL LINE AND SHOWED (FUEL LINE SOAKED WITH GASOLINE DIRECTLY UNDER THE ENGINE), I ALSO NOTICED THAT WHEN USING THE AC THE STRONG SMELL OF GASOLINE COMES THROUGH THE VENTS.

My boyfriend and I were driving my 2015 MB C400 down the road in November 2020 and it was a beautiful day out so we decided we would open the sunroof to get some fresh air. I was driving so my boyfriend pressed the button for the sunroof to open. As the sunroof was opening, there was a cracking and popping sound coming from above us. We immediately pulled over at a gas station to see what was happening. Upon getting out of the car and looking closer at the sunroof, we noticed many cheap plastic components that were just broken and crumbled laying inside the sunroof tract. We removed the broken pieces and then tried to close the sunroof several times. T Each time, the sunroof went into the closed position BUT immediately went straight back to the popped up position and would not completely close again. I took my car to the MB dealership in Athens, Ga where they told me it would be almost $2500 to repair which I did not feel as if I should be held responsible for as I had just purchased the car in January 2020 only 11 months earlier. I was in fear that the sunroof would detach from the car and cause serious injury to any motorist behind me. I also have a [XXX] son who is now scared to ride in my car!! After doing much research on this issue, I have found that this is truly a common problem with this MB model. I have reached out to the corporate office a few times and they only tell me that there is no active recalls with my cars VIN. It is completely unacceptable that MB is fully aware of this issue yet they continue to disregard the potential harm to other motorists. Please help!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

EVERY TIME I START MY CAR IT SMELLS LIKE GAS AND IT'S SO STRONG TO THE POINT WHERE IT GIVES ME HEADACHES. ALSO I WAS ON THE FREEWAY AND THE ROADS WERE WET FROM PREVIOUS RAIN AND I ALMOST DIED AND HYDROPLANED ON THE FREEWAY. EVEN IF IT'S A SMALL BIT OF RAIN MY CAR STARTS SHAKING AS IF I DON'T HAVE CONTROL. I DO NOT FEEL SAFE IN THIS CAR AND I JUST GOT THE CAR A MONTH AGO.

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

The car suddenly glitched and locked itself—with my dog, my purse, my phone, everything—inside on an extremely hot day. There was no one around, and it was terrifying. I had opened the passenger door for my dog to climb in, and as I walked around to the driver’s side, the doors somehow locked on their own. Panic set in immediately. My dog, my phone, and my purse were all inside, and I had no way to call for help. We had just finished a walk, and then this happened out of nowhere. I had to run around searching for someone who could help. Eventually, I found a stranger who called the police, and they had to break the door open because it was over 100 degrees outside. I was terrified my dog would pass out from the heat. There were no warnings, no alerts, no messages. If it weren’t for that random stranger who happened to be there and willing to help, I don’t know how I would have gotten my dog out. It’s a reminder of the kindness of strangers, but the glitching car was truly terrifying and not ok.

WHILE DRIVING MY 2015 C250 COUPE, I HAD TO BRAKE HARD AS I WAS TRYING TO AVERT STOPPED HEAVY TRAFFIC. WHEN I SLAMMED ON THE BREAKS, THE STEERING WHEEL, COLUMN AND ENTIRE VEHICLE LOCKED UP. I WAS UNABLE TO TURN THE WHEEL ENTIRELY. AS A RESULT, MY VEHICLE SLIDE INTO ANOTHER VEHICLE FROM BEHIND. BECAUSE BOTH THE STEERING AND BRAKES LOCKING, I WAS UNABLE TO MANEUVER THE VEHICLE TO AVOID THE STOPPED TRAFFIC. THE AIRBAGS ALSO DID NOT DEPLOY AS THEY SHOULD HAVE.

I 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.

SUNROOF NO LONGER CLOSED SHAKES AND RATTLES, SEEMS LIKE A SAFETY ISSUE DURING A POSSIBLE ROLLOVER

WHEN DRIVING ON THE BRIDGE THE PIECE OF MY SUNROOF FLEW OFF I PULLED OVER IT WAS RAINING AND THE INSIDE OF MY CAR GOT WET THE MOTOR ON MY SUNROOF NO LONGER WORKS AS THE WATER LEAKED THROUGH. I PICKED UP AS MUCH OF THE PIECES AS I COULD BUT THE PART WAS RUN OVER.

THERE ARE NO OPEN OR PENDING RECALLS ON THIS VIN. FOR CONSIDERATION OF ANY PART THAT IS OUT OF MANUFACTURER WARRANTY, IT WILL FIRST NEED TO BE ASSESSED AT THE DEALERSHIP LEVEL. IF FURTHER ASSISTANCE MAY BE REQUIRED, YOU CAN THEN CONTACT THE CUSTOMER ASSISTANCE CENTER FOR FURTHER REVIEW BY AN EXECUTIVE REFERRAL MANAGER. THERE ARE MANY FACTORS IN DETERMINING ANY CONSIDERATION WHICH INCLUDE BUT ARE NOT LIMITED TO THE VEHICLE HISTORY, MILES, TIME OUT OF WARRANTY, CUSTOMER PAY, ETC. PLEASE BE ADVISED THAT THERE IS NO GUARANTEE THAT ASSISTANCE WILL BE PROVIDED, BUT YOU WOULD RECEIVE A CALL WITHIN ONE BUSINESS DAY AT THE NUMBER YOU PROVIDE. 2015 C300 4MATIC PANORAMIC SUNROOF FRONT PANEL DETACHMENT WHILE DRIVING. THE GLASS FLEW OFF AND INTO TRAFFIC WHILE I WAS DRIVING ON INTERSTATE HIGHWAY I-25. I LIVE IN COLORADO SPRINGS CO. USA. AND MAINTENANCE AT THE LOCAL MERCEDES BENZ THERE. QUESTION IS IF THERE IS ANY VISIBILITY TO THIS ISSUE VIA MERCEDES BENZ CORPORATE, AND IF ASSISTANCE ON REPAIRS ARE A REALISTIC EXPECTATION. FAILURE DATE: 08/25/2020 THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT WHILE DRIVING AT THE SPEED LIMIT ON I-25, THE FRONT GLASS PANEL DETACHED FROM THE VEHICLE. THE CONTACT STATED A TRUE REALIZATION OF THE ISSUE WAS NOT FULLY COMPREHENDED WHEN IT HAPPENED OUTSIDE OF THE NOISE IT MADE AT THE TIME OF FAILURE, UNTIL THE CONTACT PULLED OVER ONCE OFF THE HIGHWAY, AND CONFIRMED THAT THE GLASS PANEL HAD DETACHED FROM THE VEHICLE. THE GLASS PANEL WAS NOT RETRIEVED. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBER: 19V918000 (VISIBILITY) AS A POSSIBLE SOLUTION FOR THE FAILURE, THE FAILURE MILEAGE WAS APPROXIMATELY 70123. IS ASSISTANCE FOR THE MONETARY COST OF REPAIR AN OPTION. QUESTION REFERENCE # 200826-000024 DATE CREATED: 08/26/2020 09:41 AM DATE LAST UPDATED: 08/27/2020 08:56 AM*DT CONSUMER STATED IN THE LATEST FINDINGS DURING INSPECTION THAT THEY WAS A MANUFACTURER ERROR AND REFUND WOULD BE APPLICABLE.*JB*DT *TR

2015 MERCEDES BENZ C300. CONSUMER WRITES IN REGARDS TO DELETED SAFETY FEATURES AFTER SAFETY RECALL WAS PERFORMED. *LD THE CONSUMER STATED DURING AN UPDATE THE VOICE RECOGNITION FEATURE WAS UNINSTALLED. THE MANUFACTURER WAS CONTACTED AND STATED THE FEATURE WOULD ONLY OPERATE IF THE VEHICLE HAD AN ACTIVE GPS SYSTEM. THE CONSUMER STATED THE VEHICLE WAS PURCHASE WITH THE USE OF THE VOICE COMMAND AND IT SHOULD REMAIN. *JS

I STARTED EXPERIENCING LOUD WIND NOISE COMING FROM THE TOP OF MY CAR NEAR MY WINDSHIELD WHEN DRIVING OVER 40MPH. I PULLED OVER AND EXAMINED THE AREA AND FOUND THAT THE TOP LEFT GLASS PANEL IN FRONT OF THE SUNROOF ON MY 2015 MERCEDES BENZ C300 WAS SLIGHTLY PROPPED UP. IT SEEMED TO BE A POSSIBLE SEAL OR GLUE ISSUE CAUSING THE GLASS PANEL TO BE SLIGHTLY LOOSE AND ALLOWING AIR IN. I CALLED MERCEDES AND MADE THE NEXT AVAILABLE APPOINTMENT FOR SERVICE A FEW DAYS OUT. WHILE DRIVING ON THE FREEWAY, I BEGUN TO HEAR THE WIND NOISE AGAIN BUT FOLLOWED BY A LOUD RIP FROM THE ROOF OF MY CAR THIS TIME BUT DID NOT SEE ANYTHING IN SIGHT. WHEN I PULLED OVER, THE GLASS PANEL WAS COMPLETELY MISSING AND WENT FLYING SOMEWHERE ON THE HIGHWAY, CAUSING A ROAD HAZARD. IT WAS TORN OFF THE CAR AND THE ROOF OF THE CAR IS NOW EXPOSED.

THE VEHICLE WAS THANKFULLY NOY IN MPTION WHEN MY PANARAMA SUNROOF AND THE SHADES FAILED. THE SHADES I UNDERSTAND ITS NOT A SAFETY PROBLEM, BUT THE SUNROOF NOT BEING ABLE TO HOLD IN PLACE AS IT OPENS IS DIFFERENT. WHEN THE SUNROOF OPENED, THE REAR OF THE ROOF WAS NOT IN PLACE AND SHAKY. WHEN I TRIED TO CLOSE, IT HAD NOT LOCKED ITSELF RIGHT BACK IN PLACE, WHERE I HAD TO TAKE IT TO A MECHANIC JUST TO HAVE IT SHUT TO AVOID THE RAINSTORM YESTERDAY. I RECENTLY DID SOME RESEARCH AND READ THROUGH SOME ARTICLES, HAD A FRIEND OF MINE TAKE A LOOK AT IT AND IT SEEMS TO BE VERY SIMILAR, ALMOST THE SAME AS THE RECALL THEY HAVE DONE ON OTHER YEAR MAKE FOR THE PANARAMA ROOF.

THIS CAR LEFT ME STRANDED ON THE SIDE OF THE ROAD. THE CAR WAS ON WORKING FINE DRIVING ALONG THEN ALL OF A SUDDEN PUSHING THE GAS PEDAL DID NOTHING AND THE CAR WOULD NOT MOVE. THE ENGINE SHUT OFF COMPLETELY. THE ENGINE WAS NOT GETTING GAS. THE ELECTRICAL AND EVERYTHING ELSE WAS ON IN THE CAR EXCEPT THE ENGINE. THE SYSTEM IN THIS CAR HAS A DOUBLE FUEL TANK THAT ONLY WORKS ON ONE SIDE. THE ENTIRE FUEL SYSTEM IS FAULTY. THE MANAGER AT MERCEDES TOLD ME HIMSELF THAT THIS IS A DESIGN FLAW IN THIS CAR. THERE IS NO REASON WHY A CAR WITH 24,000 MILES SHOULD HAVE BROKEN DOWN ON THE SIDE OF THE ROAD BECAUSE THE ENTIRE FUEL SYSTEM DOES NOT WORK. FAULTY AND HORRIBLE WORKMANSHIP ON A SUPPOSED LUXURY VEHICLE.

FRONT OF GLASS SUNROOF FLEW OFF WHILE DRIVING ON FREEWAY - RECALL EXISTS FOR OLDER VERSIONS OF MY CAR. MINE IS A 2015

ON JULY 19, 2020, I WAS DRIVING MY MB C300, ON HIGHWAY 301 IN BRADENTON FLORIDA. SUDDENLY, I HEARD WHAT SOUNDED LIKE A GUNSHOT. I WAS TERRIFIED. ONCE, I CALMED DOWN AND WAS ABLE TO GET TO A SAFE LOCATION, UPON EXAMINATION, I DISCOVERED THAT MY SUNROOF HAD SPONTANEOUSLY SHATTERED. THERE WAS ABSOLUTELY NO EVIDENCE OF ANY TYPE OF FOREIGN OBJECT CAUSING THE SUNROOM TO SHATTER. FORTUNATELY, WHEN THE LOUD BANG OCCURRED, I HAD THE PRESENCE OF MIND TO NOT LOSE CONTROL OF MY CAR IN WHAT COULD HAVE CAUSED AN ACCIDENT. ALSO, IF THE SUNROOF HAD BEEN PARTIALLY OPENED THE GLASS CHARDS COULD HAVE CAUSED SIGNIFICANT INJURY. THIS IS COMPLETELY AND UTTERLY UNACCEPTABLE. MERCEDES BENZ IS A LUXURY CAR MANUFACTURER, KNOWN FOR SUPERIOR ENGINEERING. THIS SHOULD NOT HAVE HAPPENED, UNDER ANY CIRCUMSTANCES.

ENGINE LIGHT FAULT PO52E CRANKCASE VENTILATION VALVE FAULT MECHANIC DECLINE REPAIRING. SAID ITS A COMMON PROBLEM OR DEFECT IN ALL C300 MERCEDES BENZ

MY PANARAMA SUNROOF JUST FAIL AND ALMOST COLLAPSE ON ME. MY CAR IS 5 YEARS OLD. I WAS DRIVING AND IT APPEAR THE GLASS WAS COMING OUT. THE VEHICLE WAS STATIONARY. I'M AFRAID THAT THE GLASS WILL POP OUT AND FALL ON ME. THIS IS SERIOUS. IT COULD HARM ME IF IT FALLS ON ME.

P052E PCV value problem Google search results show this is a very common problem, and despite being a component of the vehicle emissions system, Mercedes is refusing to repair under the emissions warranty.

CYLINDER ONE CRACKED UNDER NORMAL USE

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.

Panoramic glass sliding plastic brackets broke off while driving at 25-35 mph Lifting up the glass off the vehicle. Quick reaction saved the large detached glass from flying off into the roadway injuring or killing someone. Vehicle was 5 years old and out of warranty. Dealer estimated repair cost at $2500

REGARDLESS OF DRIVING THROUGH CITY STREETS, EXPRESSWAY OR IN PLACE THE SCREEN TO MY VEHICLE DISPLAYS 'STOP VEHICLE SHIFT TO PARK LEAVE ENGINE RUNNING' WITH AN IMAGE OF A BATTERY ABOVE. *TR

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. THE CONTACT STATED THAT WHILE DRIVING AT AN UNKNOWN SPEED, THE GLASS PANEL DETACHED FROM THE VEHICLE. THE CONTACT VEERED TO THE SHOULDER OF THE ROADWAY AND INSPECTED THE VEHICLE AND CONFIRMED THAT THE GLASS PANEL HAD DETACHED FROM THE VEHICLE. THE GLASS PANEL WAS NOT RETRIEVED. ADDITIONALLY, THE CONTACT STATED THAT WHEN IT RAINED, WATER WOULD ENTER THE CABIN OF THE VEHICLE. MERCEDES-BENZ OF CUTLER BAY (10701 SW 211 ST, CUTLER BAY, FL 33189, (305) 251-0345) WAS CONTACTED AND INFORMED OF THE FAILURES. THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NOT SUBJECTED TO A RECALL. THE VEHICLE WAS REPAIRED. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBER: 19V918000 (VISIBILITY) AS A POSSIBLE SOLUTION FOR THE FAILURE HOWEVER, THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS APPROXIMATELY 59,900.*DT*JB

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.

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.

I TOOK MY CAR IN FOR SERVICE B AND WAS TOLD THE LOW PRESSURE FUEL LINES WERE LEAKING. IT IS A FIRE HAZARD, SO IT CANNOT BE IGNORED.THE CAR IS 5 YEARS OLD AND HAS BEEN METICULOUSLY MAINTAINED. IT COST ME $750 TO REPAIR, AND MY VEHICLE WAS OUT OF MANUFACTURER'S WARRANTY. *TR

In March of 2020 I was driving home from work. I stopped at a red light. When it turned green, I proceeded to step on the gas. My car started making noises and shaking as I drove. My check engine light came on. I was able to pull over without incident. My vehicle has under 48k miles on it! I had it towed to a Firestone facility by my house. They replaced spark plugs and ignition coil 1 and 2. They said it was still severely misfiring. Cylinder 1 must have internal damage and should be towed to the dealer. They gave me a spark plug they removed that had significant damage to the top part. They said something must have impacted it with significant force. I then had the vehicle towed to a Mercedes Benz Dealership. They said they inspected with a scope and found piston material missing, can see ring exposed and have damage to cylinder wall. Will need to replace engine, turbo charger, cat converter intake manifold to repair. They wanted $18k to repair. I did some research and found out that the 2015 Mercedes C class was the first year they switched from 6 cylinder to 4 cylinder turbo charge engine. These models have had a significant amount of engine problems and failures, the manufacturer is aware of. Many of these occurred in cylinder 1 along with wrist pins issues and others. I found my situation wasn't unique. I then filed a complaint with The BBB in Georgia. MBUSA offered me $3k towards the repair or purchase of a new vehicle. I declined the offer. I only wanted my vehicle repaired. I wasn't alone in this situation. These issues are easily found online. My vehicle has since been sitting in my driveway for almost a year and a half. I've been making my monthly car and insurance payments on a vehicle I can't drive. I recently went to the Mercedes dealership and they will give me $5k for the vehicle towards a trade, leaving me with $15k negative equity towards the purchase of a vehicle. Mercedes should stand behind their products and do the right thing