2015 Mercedes-Benz C300 Body and structure Problems
- Complaints
- 60about this part
- Share
- 16%of 381 total for the year
- Median mileage
- 62,612miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 60 complaints about the body and structure of the 2015 Mercedes-Benz C300, 16% of the 381 complaints for this model year. Where a mileage was given, the median is 62,612 miles. 1 of these say a crash was involved, according to the filers. 2 recall campaigns on record are filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“At highway driving speeds in excess of 50 MPH, the glass trim panel of the panoramic sunroof vibrates and flaps wildly. It is not securely attached to the roof of the car. I took it to the dealer to have it replaced. It will fly off and hit the vehicle behind me. If the vehicle behind me were a motorcycle, the results would be disastrous.”
NHTSA complaint #11222127, filed 2019-06, 37,000 miles“I was driving on 02/13/2020, about to cross the arkansas/tennessee bridge when my sunroof exploded without an explanation. The entire panoramic sunroof shattered. It was the most frightening thing I have ever experience. If my sunroof screen had been open, all of the glass would have fallen on my head and in my eyes. Called the mb dealer for help, they weren't willing to help and suggested that I file it with my own insurance company. This is a defect of mb!!”
NHTSA complaint #11310988, filed 2020-02, 53,000 miles“My sunroof exploded/shattered while I was driving today, traveling at a speed of 45mph on city road after turning a corner. Outside temp was around 85 and inside car was 75. Car has around 6800 miles, and there was nothing that hit the sunroof. Scary situation for the driver! Car is currently under warranty and at the dealer for repair, but they want my insurance to pay. I insist this be investigated because I believe it to be a manufacture defect”
NHTSA complaint #10970347, filed 2017-04, 6,800 miles“I was driving at approx. 20-25 MPH during day light and all of a sudden there was light blinked on my dashboard for applying the brakes because of another vehicle ahead of me. I applied the brakes as well as brake assist plus system got activated as well. But still my vehicle end up hitting the vehicle ahead of me. The brake assist plus system which is claimed by mercedez to take brake automatically to bring the system to halt in case of emergency did not work and it end up hitting another vehicle in front of my vehicle”
NHTSA complaint #11074407, filed 2018-02, 32,000 miles“I was driving 580-e and merging onto I-5 s when I hit a humongous pot hole with my left font tire causing it to immediately blow out. That in-turn caused my stability tracking to engage, which caused me to slow down drastically. That caused another vehicle to near miss ramming me in the back and me side swiping another vehicle. I was driving approximately 70 MPH and almost lost control of the vehicle and had to immediately pull over to a very narrow shoulder of the road with my emergency flashers blinking. …”
NHTSA complaint #10958331, filed 2017-03, 21,000 milesRelated recalls
- 23V854000Dec 15, 2023Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for…Covers: Mercedes-Benz C300 2015–2020, CLA250 2014–2019, AMG C63 2015–2020 +19 more
- 21V197000Mar 19, 2021Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG…Covers: Mercedes-Benz C300 2015–2020, AMG S63 2014–2020, CLA250 2014–2019 +19 more
Related service bulletins
- 11038217Sep 14, 2026Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise…
- 11036511Aug 24, 2026Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket…
- 11036101Aug 6, 2026Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise…
- 11013192Jan 24, 2025Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap…
- 11013185Jan 24, 2025Complaint Paint damage on door paneling in area of door handle (see picture 1). Cause Alignment of door handle bearing bracket is not correct. Remedy 1. Paint the affected area…
- 11013184Jan 24, 2025Complaint Noise from area of instrument panel Noise might occur in the following conditions: - At engine speeds of 1500 rpm to 2000 rpm. - In the speed range up to 45mph - Type…
- 11013347Jan 23, 2025Complaint Wind or airflow noises in the area of the doors Cause Airflow noises or tire noise. The noises entering the interior may be perceived as too loud. Remedy MODEL…
- 11009122Oct 23, 2024Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump…
- 10252770Mar 12, 2024As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA)…
- 10232321Feb 10, 2023Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000…
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 5% |
| 2022 | 1 | 4% |
| 2020 | 4 | 12% |
| 2019 | 7 | 10% |
| 2018 | 14 | 14% |
| 2017 | 24 | 11% |
| 2016 | 28 | 10% |
| 2015 | 60 | 16% |
| 2014 | 9 | 10% |
| 2013 | 58 | 22% |
| 2012 | 55 | 21% |
| 2011 | 49 | 10% |
| 2010 | 34 | 8% |
| 2009 | 27 | 5% |
| 2008 | 9 | 1% |
Other parts of the 2015 Mercedes-Benz C300
127 complaintsFuel system
70 complaintsOther or unknown
63 complaintsElectrical system
50 complaintsSteering
23 complaintsSuspension
22 complaintsTransmission and drivetrain
20 complaintsVisibility (wipers, defrost, mirrors)
16 complaintsAir bags
12 complaintsBrakes
9 complaintsForward collision avoidance
8 complaintsWheels
8 complaints
← All problems reported for the 2015 Mercedes-Benz C300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology