2015 Mercedes-Benz C300 Visibility (wipers, defrost, mirrors) Problems
- Complaints
- 16about this part
- Share
- 4%of 381 total for the year
- Median mileage
- 59,900miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 16 complaints about the visibility of the 2015 Mercedes-Benz C300, 4% of the 381 complaints for this model year. Where a mileage was given, the median is 59,900 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“On May 27th, 2025, during highway driving suddenly the sunroof got open by itself for like 3 inches upwards from the front and after exiting the highway i stopped and push the sunroof downwards by applying the force and apply duct tape all around the sunroof to keep it protect from sun and rain so i am not driving anymore before getting it resolved.”
NHTSA complaint #11664393, filed 2025-06“I have a fuel smell in the cabin of my car which started about 3 weeks ago. I have drove the car a couple of times and it was pretty bad, also my sunroof almost blew off the car while driving to dry the car after removing the salt from the streets after the snow. I have since parked it in the garage to avoid any further damage. I will submit pictures so you can see the sunroof.”
NHTSA complaint #11566872, filed 2024-01“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. …”
NHTSA complaint #11482118, filed 2022-08“During a drive, I had the sunroof opened and then it suddenly started raining. When I tried to close the sunroof using the button, it wouldn't budge. I had to continue driving on the highway with rain pouring inside the vehicle. When I finally found a place to stop and check the sunroof, I saw that the roof on one side was popped off. After a few minutes of trying to close it, it finally popped back into place on its own. However, now there is a rattling sound coming from the sunroof when driving, and the car is no longer quiet. I can hear outside noise as if a window is cracked opened. …”
NHTSA complaint #11528604, filed 2023-06“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”
NHTSA complaint #11665351, filed 2025-06Related service bulletins
- 11034064Jun 19, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11032875May 19, 2026Complaint There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is…
- 11027751Jan 16, 2026Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy *Note - This Li does not apply if there…
- 11027682Jan 15, 2026Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps…
- 11027566Jan 7, 2026Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps…
- 11010494Nov 13, 2024Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to…
- 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…
- 11031594Oct 29, 2020This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be…
- 10167084Apr 10, 2014Passenger side outside mirror glass adjusts itself at random at ignition on/off
- 10205215Jul 30, 2013Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.
Visibility (wipers, defrost, mirrors): other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 5% |
| 2021 | 1 | 7% |
| 2020 | 3 | 9% |
| 2019 | 1 | 1% |
| 2018 | 3 | 3% |
| 2017 | 9 | 4% |
| 2016 | 21 | 7% |
| 2015 | 16 | 4% |
| 2014 | 1 | 1% |
| 2013 | 2 | 1% |
| 2012 | 3 | 1% |
| 2011 | 1 | 0% |
| 2010 | 4 | 1% |
| 2008 | 2 | 0% |
Other parts of the 2015 Mercedes-Benz C300
127 complaintsFuel system
70 complaintsOther or unknown
63 complaintsBody and structure
60 complaintsElectrical system
50 complaintsSteering
23 complaintsSuspension
22 complaintsTransmission and drivetrain
20 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