2020 Mercedes-Benz GLC 300 Visibility (wipers, defrost, mirrors) Problems
- Complaints
- 2about this part
- Share
- 3%of 70 total for the year
- Median mileage
- 53,035miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the visibility of the 2020 Mercedes-Benz GLC 300, 3% of the 70 complaints for this model year. Where a mileage was given, the median is 53,035 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“On Saturday October 5th at roughly 8:30 p.m. heading West on I-94 near battle creek, MI, the glass sunroof on our Mercedes suddenly exploded out and shattered. We were traveling at 75 mph with little surrounding traffic and no over-head obstructions. It took a second to re-gain control of the situation and slow down to a stop. We had the sun-shade closed, saving us from glass shards raining down from the exploded sunroof. The following Monday morning, Oct 7th around 9:00 a.m., we called Mercedes about the issue. They were indifferent and offered no assistance. …”
NHTSA complaint #11619687, filed 2024-10“The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the panoramic roof unexpectedly shattered. There was no warning light illuminated. The vehicle was taken to the dealer, where it was determined that the panoramic sunroof and the sunroof protector needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 53,035.”
NHTSA complaint #11715247, filed 2026-02, 53,035 milesRelated 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…
- 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…
- 11013336Jan 23, 2025Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position…
- 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…
- 10244745Oct 2, 2023Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process without entrapment event. Sensitive parameterization of the…
- 10238437Jun 15, 2023Mercedes-Benz AG (âMBAGâ), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (âMYâ) 2016 â 2021 C-Class (205 platform), E-Class (213…
- 10199660Jul 8, 2021Coolant warning in instrument cluster - Leak in coolant line
Visibility (wipers, defrost, mirrors): other model years
Other parts of the 2020 Mercedes-Benz GLC 300
22 complaintsOther or unknown
15 complaintsBack-over prevention (rear camera)
7 complaintsElectrical system
6 complaintsForward collision avoidance
6 complaintsExterior lighting
5 complaintsSteering
5 complaintsFuel system
4 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsBody and structure
3 complaintsAir bags
2 complaints
← All problems reported for the 2020 Mercedes-Benz GLC 300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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