Body problems of the 2017 Mercedes Benz C300

While driving home from work, without any warning or blunt force the sunroof exploded and shattered glass was everywhere.

I am reporting a serious vehicle safety hazard caused by improper and unsafe repair work performed by USA platinum motor, located at 1221 California lane #126b, arlington, TX. I brought my 2017 mercedes-benz C300 in for a cold start rattle with no warning lights or prior issues. The shop diagnosed a loose timing chain and I authorized the repair. After the repairs, the vehicle was returned with critical safety defects, including a loose fuel pump, unsecured fuel line, missing bolts, and improperly reassembled engine components. Shortly after pickup, the car experienced loss of acceleration on the interstate, a strong odor of fuel, and a sudden loss of power, creating a dangerous and life-threatening situation. The vehicle had to be towed back to the shop. The manager, who is not a certified mechanic, admitted he personally “fixed” the issue by tightening the fuel pump himself. A mercedes-benz diagnostic inspection later confirmed multiple severe assembly errors, including missing fasteners, unsecured oil cooler, disconnected vent lines, and other safety-related defects in the fuel and cooling systems. These unsafe and negligent repairs created an extreme fire hazard, engine instability, and risk of sudden failure while driving. I am requesting a formal NHTSA investigation into this matter to ensure vehicle safety compliance and to prevent similar incidents affecting other consumers.

This is the same as recall for NHTSA 21v-197. The panel flew off my 2017 mercedes C300 w205. My VIN number is not included in the recall. This is a safety issue and will need to be replaced.

Sunroof detachment sunroof fell off while driving.

The sunroof exploded spontaneously while driving to a destination. When the incident happened, I was stopped at a red light. I panicked as it sounded like gunshots hitting my car. I pulled over to the nearest safest destination to inspect the car. This put the safety of myself at risk and others at risk who were driving along the sides and/or behind me. This incident was confirmed by a dealer, as I went to Mercedes Benz sugar land on the following day of the incident and was quoted around $3,700 to have it repaired. The vehicle not been inspected by police and/or insurance. There were no warning signs that this could have happened besides the fact that Mercedes Benz USA is currently under an active lawsuit for this happening to several other drivers. I do believe that this is a manufacturing defect affecting safety, as similar incidents involving mercedes-benz panoramic sunroofs, which may indicate a wider defect trend.

When I scan my vehicle there are Mercedes Benz fault codes pertaining to the electrical system but also recalls that haven’t been done but when looking Mercedes Benz web site and NHTSA website these are aren’t showing up as my particular chassis being included as part of the campaign.

I currently have a 2017 mercedes C300. The panel between the windshield and main panel of the panoramic roof (above the driver) is deteriorating and doesn’t not seem to be fully attached anymore. I had the exact same model but a year older in the past and this same part deteriorated and was subject to recall. I believe there is not only an issue with the part itself, but how mercedes has bonded these parts to the roof.

Panel between front windshield and sun/moon roof was vibrating loose as well as the clear coat completely peeling off the piece. The car is only at 57k miles so this should not be occurring. That piece felt like it will fly off while driving. Unsafe.

The glass panel between the top of the windshield and the front of the glass sunroof suddenly detached from the car. I was driving on the I-5 freeway at 70mph when the panel detached without warning. By the time I had safely pulled over I could not safely walk back to see if I could find the panel. The freeway was busy, I do not know if the panel struck another vehicle. It looks like the adhesive that holds the panel on has failed.

The vehicles panoramic sunroof does not close fully. There is a recall for certain mercedes-benz 2015 - 2020 C300 vehicles, my car is a 2017 C300, but for some reason my vehicle is not part of the recall. The recall number is 21v197000.

My gas door has fell off 3 times exposing my gas cap. I got it replaced twice. It fell off on the highway and the other times I was just doing gas and it fell off into my hand. No excessive force. I didn’t want to pay again to repair it so I just taped it.

Repeated panoramic sunroof failure: sun roof rails are have been reported by the dealer to fail / crack and allow panoramic sun roof to dislodge from tracks securing this structure to the vehicle. Note this is not related to/addressed by the previous recall loud cracking noises heard and the sunroof stuck in an open position and appeared at risk of departing the vehicle on initial occurrence 2019/2020 dealer attempts to repair resulted in replacement of the rails which are reportedly "made of plastic and do not hold up well in southwestern us temperatures/climate" repairs/rigging the system appears to "load the rails" and dealer reported life limits can be as low as 10 cycles / 30 months this issue has occurred three times in the past 4 years 92k miles improper closure/ cracked tracks could result in incomplete cabin security during a roll over and/or potential for the panoramic sunroof to depart the vehicle to become a threat to other traffic.

Collision assyt not operating, e brake engaged damage rear brakes and rotors.

Front panel glass of panoramic sunroof flew off the car as I was driving on the highway.

Sudden acceleration after pulling very slowly into parking space. Almost stopped. Car suddenly accelerated, jumped a curb from, went up an embankment and hit a tree. Was able to reverse and back down. It will take a month for body work. Notified mercedes dealer. They will run diagnostics on Jan. 7.

I hit a bear in montana in my 2017 mercedes C300 at 86mph and destroyed the front of my car. The seatbelts deployed and wrenched us into our seats and smoke came out of the front air vents but the airbags did not go off. On the dash the vehicles stated that the airbags in all 4 zones in the car malfunctioned and service is required. Mercedes is stating that the light is from a seatbelt error code but the dash did not say anything about srs or seatbelts. I do not want to put my family back in the car and do not feel it should be repaired. Please see attached photos of the error messages on the dash. I do not know how I can hit something that hard and not have them deploy. Mercedes is doing an internal investigation but they have not given me the results of that and it has been over 3 weeks. Vehicle was in for a airbag recall not takata related on January of 2018 and this was supposed to have been repaired.