Known issue with panoramic sunroof on 2015 Mercedes C300 sunroof. Having to be replaced on -??many-?? vehicles costing over $2500 for repair. Sunroof gets stuck and will not close.

- Rock Hill, SC, USA

The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 35 MPH, the panoramic sunroof detached from the vehicle without warning. The vehicle was driven to the dealer, and she was informed that the vehicle was not under warranty or recall. The contact was provided an estimate for the repair. The manufacturer was notified of the failure and was provided the same information as the dealer. The vehicle was repaired. The failure mileage was 24,000.

- Sunrise, FL, USA

The contact owns a 2015 Mercedes-Benz C300. The contact stated while driving 55 MPH, an abnormal wind sound was coming from the sunroof. The contact then heard a loud banging sound and saw the dethatched sunroof panel in the rear-view mirror. The contact pulled over to assess the damage and then drove the vehicle home. The contact initially called the dealer where he purchased the vehicle and was referred to the local dealer authorized dealer for assistance. The contact was initially given an appointment that exceeded a reasonable amount of time for the repair. Upon investigation, the contact discovered NHTSA Campaign Number: 21V197000 (Structure) which he linked to the failure. The manufacturer was notified about recall and stated that they were unaware of that recall. The vehicle was not repaired. The failure mileage was approximately 96,000.

- Dayton, OH, USA

While driving on the highway, I heard a noise.? While still driving, I quickly looked around which included looking in my rear view mirror.? I saw something in the air and saw it hit the road.? It didn't occur to me that what I saw flying was from my car.? I thought the noise was from some part of the object (maybe a screw) hitting my car.// When I got to where I was going, I walked from my driver's side around the back of the car looking to see if there were any noticeable issues.? When I didn't see any issues, I decided to walk to the front of the car where I noticed the panel missing between the top of the front windshield and the sunroof. // I found the following article: https://www.carcomplaints.com/news/2021/mercedes-benz-sunroof-problems-cause-recall.shtml The scenario described in the article happened to me on Saturday 27Aug2022: "And a 2015 Mercedes C300 driver heard loud wind noise coming from the top of the vehicle near the windshield while driving above 40 mph.... while driving on the freeway the driver heard a loud ripping noise and realized the panel was missing. The sunroof panel that flew away wasn't found."

- Atlanta, GA, USA

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.

- Miami, FL, USA

The contact owns a 2015 Mercedes Benz C300. The contact stated that while driving at 55 mph, the glass in the sunroof collapsed without impact. The vehicle was taken to the dealer where the sunroof was repaired. The manufacturer was notified of the failure. The failure mileage was 21,000.

- Princeton Junction, NJ, USA