Structure Problems of Mercedes Benz C300 - part 1

The contact owns a 2017 mercedes-benz C300. The contact stated while driving 60 mph, the contact became aware that an unknown part had detached from the vehicle. The contact stated that after stopping to refuel the vehicle, it was discovered that the roof panel was missing. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA campaign number: 23v854000 (structure); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 129,000.

See all problems of the 2017 Mercedes Benz C300 🔎.

The contact owns a 2015 mercedes-benz C300. The contact stated that while his wife was driving at an undisclosed speed, the roof panel detached from the vehicle and fractured. The contact stated that the roof panel had previously been replaced, but the failure occurred. The vehicle was taken to the dealer, where it was determined that the front roof panel needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 23v854000 (structure); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

See all problems of the 2015 Mercedes Benz C300 🔎.

The contact owns a 2015 mercedes-benz C300. The contact stated that while driving at 50 mph and attempting to decelerate, the front end of the vehicle began to drift to the right while the rear drifted to the left. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the rear subframe. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was 136,000.

The contact owns a 2015 mercedes-benz C300. The contact stated that while driving approximately 70 mph, there was a loud clicking sound come from the panoramic sunroof. The contact stated that the sunroof then became inoperable. The contact became aware of NHTSA campaign numbers: 23v854000 (structure) and 21v197000 (structure). The dealer was contacted and confirmed that the VIN was not included in the recalls. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed the VIN was not under recall. The manufacturer referred the contact to the NHTSA hotline to report the failure. The failure mileage was 115,000.

The contact owns a 2009 Mercedes Benz C300. The contact stated that while driving at various speeds the rear end of the vehicle would fishtail and become extremely unstable while driving over a bump in the road or while making turns. Upon inspection the contact discovered that the subframe of the vehicle had sustained severe rusting and corrosion. The cause of the failure was not determined and the vehicle was not yet repaired. The local dealer was notified of the failure. The manufacturer was not contacted. The failure mileage was 201,000.

See all problems of the 2009 Mercedes Benz C300 🔎.

The contact owns a 2015 mercedes-benz C300. The contact stated that while washing the vehicle, he observed that the roof panel had become detached. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 21v197000 (structure), but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA hotline for assistance. The failure mileage was 90,000.

The contact owns a 2022 Mercedes Benz C300. The contact stated that while parked they noticed the seal dethatched from the driver door. The contact stated that water reached the driver seat causing a short in the electrical system. The vehicle was taken to a dealer and was diagnosed as a manufacturer defect. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to reach the NHTSA hotline. The vehicle was not repaired. The failure mileage was approximately 6,000.

See all problems of the 2022 Mercedes Benz C300 🔎.

The contact owns a 2018 mercedes-benz C300. The contact stated while driving approximately 65 mph, there was a windy sound coming from the front of the vehicle. The contact then noticed the sound of an impact on the rear driver's side of the vehicle. The contact pulled to the side of the road and noticed that the front roof panel had separated and had struck the rear driver's side of the vehicle above, the wheel. The contact was able to continue driving. The vehicle was taken to an unknown dealer, where it was determined that the failure was related to NHTSA campaign number: 23v854000 (structure) however, the VIN was not included. The dealer informed that the repair would be an out-of-pocket expense. The insurance company towed the vehicle to an independent mechanic for the repair. The vehicle was being repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was unknown.

See all problems of the 2018 Mercedes Benz C300 🔎.

The contact owns a 2015 mercedes-benz C300. The contact received notification of NHTSA campaign number: 23v854000 (structure) 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 while driving 50 mph, the panoramic plastic piece suddenly detached from the vehicle. The location where the piece was attached was fractured allowing wind and water to leak inside the vehicle. The dealer was contacted. The manufacturer was made aware of the issue. The manufacturer referred the contact to the NHTSA hotline to report the failure. The failure mileage was 103,000. VIN tool confirms parts not available.

The contact owns a 2017 mercedes-benz C300. The contact stated that while driving 60-65 mph, the vehicle made an abnormal whistling sound. Additionally, the contact stated that while the vehicle was at the car wash, and she became aware that water was leaking inside the vehicle through the windshield bonded panel. An independent mechanic was contacted and informed the contact that the front windshield bonded panel could have detached; however, the vehicle was not diagnosed nor repaired. The dealer was not notified of the failure. The contact related the failure to NHTSA campaign number: 21v197000 (structure); however, the VIN was not included. The manufacturer was notified of the failure and informed the contact that they could not assist because the VIN was not included in the recall. The failure mileage was unknown.

The contact owns a 2015 mercedes-benz C300. The contact stated that while the vehicle was at the dealer for routine service, a corrosion inspection was performed. The contact was informed of a rust hole in the sub frame. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA hotline. The failure mileage was approximately 76,000.

The contact owns a 2015 mercedes-benz C300. The contact stated while driving approximately 65 mph she heard a "rushing air" sound as if the sun roof was open, it was not. The contact stated that when she reached her destination she noticed a panel was missing from the roof located between the sunroof and where the windshield joined the vehicle roof. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle had not been diagnosed and had not been repaired. The manufacturer had been informed of the failure. The contact had researched online and related the failure to NHTSA campaign number: 21v197000 (structure). The failure mileage was approximately 100,000.

The contact owns a 2015 mercedes-benz C300. The contact stated that while driving at 60 mph, she could hear an abnormal wind noise and rumbling emanating from an unknown source. After a visual inspection, the contact noticed that the windshield was detaching from the panoramic sunroof. The vehicle was towed to the dealer, who determined a failure with the adhesive. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA campaign number 21v197000 (structure), but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA hotline for assistance. The failure mileage was 51,150.

The contact owns a 2017 mercedes-benz C300. The contact stated while driving 75 mph, the front roof panel located between the windshield and the panoramic sunroof detached and flew off the vehicle. The vehicle was taken to the dealer and the contact stated that the vehicle had experienced the failure listed in NHTSA campaign number: 21v197000 (structure) however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 41,700.

The contact owns a 2010 mercedes-benz C300. The contact stated while driving at an undisclosed speed and attempting to make a left turn, the brake pedal was depressed, and the vehicle drifted farther to the left than intended. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who observed abnormal deterioration of the sub frame. The vehicle was later taken to the dealer, but the vehicle was not yet diagnosed. The vehicle was not repaired. The contact investigated and related the failure to manufacturer communication NHTSA id number: 10233780 (structure, equipment). The manufacturer was not notified of the failure. The failure mileage was 75,000.

See all problems of the 2010 Mercedes Benz C300 🔎.

The contact owns a 2018 mercedes-benz C300. The contact stated while attempting to close the sunroof, the sunroof failed to close properly. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 21v197000 (structure) but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 45,000.

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 repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2013 mercedes-benz C300. The contact stated that while his wife was driving approximately 35 mph and attempting to abruptly stop the vehicle to avoid a crash, the vehicle suddenly drifted into the opposite lane while depressing the brake pedal. Upon inspection, it was discovered that the rear control arms had failed. The vehicle was driven to the local mechanic who diagnosed that the failure was due to severe subframe corrosion. The contact was informed that the rear subframe and rear control arms needed to be replaced. The vehicle was not yet repaired. The local dealer and manufacturer were notified of the failure. The failure mileage was 86,000.

See all problems of the 2013 Mercedes Benz C300 🔎.

The contact owns 2017 mercedes-benz C300. The contact stated while driving 45 mph, he heard air coming in through the osi cover. Once the contact arrived at his destination, he noticed that the front sunroof panel had detached from the vehicle. The dealer was contacted and stated that the vehicle was not under warranty and that the vehicle was already repaired under NHTSA campaign number: 21v197000 (structure). The manufacturer was contacted and stated that the vehicle was not under warranty and that the dealer was not obligated to repair the vehicle free of changer. The failure mileage was 40,000.

The contact owns a 2012 mercedes-benz C300. The contact stated that while having an oil change performed on the vehicle by an independent mechanic, he was informed that the cross member was severely corroded. The contact was informed by the mechanic that the vehicle was unsafe to drive. Neither the dealer nor the manufacturer had been notified of the failure. The vehicle was not repaired. The failure mileage was approximately 125,000.

See all problems of the 2012 Mercedes Benz C300 🔎.

The contact owns a 2012 mercedes-benz C300. The contact stated that while her granddaughter was driving the vehicle, there was a rattling sound coming from underneath the vehicle. The vehicle was later inspected by an independent mechanic who diagnosed that the rear passenger’s side wheel well had sustained severe rust and corrosion and informed the contact that the vehicle was unsafe to be driven. The vehicle was not yet repaired. The manufacturer and local dealer were not notified of the failure. The VIN was not available. The failure mileage was 115,000.

The contact owns a 2012 mercedes-benz C300. The contact stated while driving approximately 2 mph over a speed bump, there was a loud cranking sound coming from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer and diagnosed with failure to the rear subframe due to severe rust. The vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 121,218.

The contact owns a 2011 mercedes-benz C300. The contact indicated that while driving at various speeds, a knocking noise was present coming from the rear of the vehicle. Additionally, while abruptly braking the vehicle would pull to the left. The vehicle was taken to the local dealer who diagnosed that the rear subframe was fractured. The cause of the subframe failure was not determined and no further information was available. The vehicle was not yet repaired. The manufacturer was not yet notified of the failure. The approximate failure mileage was 139,000.

See all problems of the 2011 Mercedes Benz C300 🔎.

The contact owns a 2015 mercedes-benz C300. The contact stated that while driving at various speeds, there was a sound of air entering the vehicle from the sunroof. No warning lights were illuminated. The vehicle was taken to a local dealer to be diagnosed. The contact was informed that the entire roof lining needed to be replaced. The vehicle was not repaired. The contact linked the failure to NHTSA campaign numbers: 23v854000 (stucture), and 21v197000 (structure); however, the VIN was not included. The manufacturer was notified of the failure. The approximate failure mileage was 50,000.

The contact owned a 2011 mercedes-benz C300. The contact stated that upon entering the vehicle, he noticed that the inside of the vehicle was flooded with water. The contact then state that he noticed that water had leaked from the sunroof and entered the vehicle. All the warning lights intermittently illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the wiring harness was damaged beyond repair. The dealer was not notified of the failure. The vehicle was not repaired. The vehicle was deemed a total loss by the insurance company. The manufacturer was notified of the failure and the contact was provided a case number. The failure 82,242.

The contact owns a 2015 mercedes-benz C300. The contact’s wife stated while driving 70 mph, the roof panel separated and detached from the vehicle. The vehicle was diagnosed but not repaired. Upon investigation, the contact associated the failure with NHTSA campaign number: 21v197000 (structure) however, the part to do the recall repair was not yet available. The manufacturer was informed of the failure but offered no assistance. The failure mileage was approximately 57,000.

The contact owns a 2015 mercedes-benz C300. The contact stated while driving 45 mph, the roof carriage started shuddering. The contact veered to the side of the road. Upon inspecting the vehicle, the contact noticed that the roof panel was loose. The contact stated that as he continued driving, the roof panel fractured and partially separated from the vehicle. The vehicle was taken to an auto glass repair shop, where the roof panel was replaced; however, the failure reoccurred. The vehicle was taken back to the same auto grass repair shop. The contact then became aware of NHTSA campaign number: 21v197000 (structure) that he related to the failure. The dealer and the manufacturer were notified of the failure and informed the contact that the VIN was not included in the recall. The vehicle was not repaired. The failure mileage was approximately 85,000.

The contact owns a 2009 mercedes-benz C300. The contact stated while driving at various speeds, the driver’s side rear tire inverted into the wheel well due to excessive corrosion. The contact had taken the vehicle to an independent mechanic where he confirmed the failure and informed him that the subframe needed to be replaced. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 130,000.

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.

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.

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.

The contact owns a 2011 Mercedes Benz C300. The contact stated that while driving a clunking noise was present coming from the rear of the vehicle. The vehicle was examined by an independent mechanic who discovered the rear passenger side subframe had cracked and separated. The cause of the failure was not determined. The vehicle was not yet repaired. The local dealer Mercedes Benz of hagerstown located at 1955 dual hwy, hagerstown, MD 21740 was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 138,000.

The contact owns a 2015 mercedes-benz C300. The contact stated that there was a crack on the front panel of 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.

The contact owns a 2017 mercedes-benz C300. The contact received notification of NHTSA campaign number: 21v197000 (structure) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated while driving approximately 60 mph, the sunroof panel detached from the vehicle. The approximate failure mileage was 39,000. Parts distribution disconnect.

The contact owns a 2016 mercedes-benz C300. The contact stated while driving approximately 50 mph, an abnormal sound was heard as a section of the glass roof panel detached from the roof of the vehicle. The vehicle was taken to an independent mechanic who replaced the missing panel. The cause of the failure was not determined. The contact later received notification of NHTSA campaign number 21v197000 (structure) however, the part to do the recall repair was not available. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was 31,000. VIN tool confirms parts not available.

See all problems of the 2016 Mercedes Benz C300 🔎.