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Visibility (wipers, defrost, mirrors)Part report

2021 Mercedes-Benz GLC 300 Visibility (wipers, defrost, mirrors) Problems

Complaints
4about this part
Share
6%of 67 total for the year
Median mileage
25,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the visibility of the 2021 Mercedes-Benz GLC 300, 6% of the 67 complaints for this model year. Where a mileage was given, the median is 25,000 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.

“Have been getting condensate inside vehicle headlights inwhich have cause the headlight to completely not work anymore.. There is no damage to headlight which means to be cause due to a problem with the seal. Checked with local and also statewide Mercedes advisors which was told there isn’t a recall for my vehicle inwhich I looked online and found an recall for vehicles just like the one I have.. Recall number 22V261000-Recall Date 04-14-2022. I’m asking for my vehicle to be inspected and repaired free of charge . …”

NHTSA complaint #11674539, filed 2025-07

“On day zero when I bought the car, it was raining. The new car wiper was shattering or making bumpy movements. It was not cleaning the heavy rain water or it was spotty. The Mercedes mechanic told it is a known issue and there is no permanent fix. They just changed the wiper blade and put solvent on windshield which may be good for few days/weeks and need to take the car everytime, I have this issue till I have warrantee. This is very annoying and safety issue in Houston rainy season. It can happen anytime in the middle of busy road and under rain.”

NHTSA complaint #11424110, filed 2021-07

“The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that while his spouse was driving approximately 35 MPH, the passenger’s side side-view mirror fractured without impact. The dealer was contacted to schedule an appointment; however, the vehicle had not been taken to the dealer to be diagnosed or repaired. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 25,000.”

NHTSA complaint #11592811, filed 2024-06, 25,000 miles

“Sunroof glass panel exploded outward. Fabric retractable interior sunroof liner did contain all of the fragmented safety glass. No prior impact on or to the sunroof. If the interior fabric sunroof liner had been retracted, the interior of the vehicle would have been showered with the glass shards impacting the driver and all passengers. There was no warning. A loud sound similar to gunshot occurred as the sunroof failed. The vehicle was driven to a local windshield repair facility for examination. I contacted and notified Mercedes Benz USA of the incident. …”

NHTSA complaint #11466660, filed 2022-05

Related service bulletins

Visibility (wipers, defrost, mirrors): other model years

YearComplaintsShare of year
202415%
202312%
202235%
202146%
202023%
201949%
201833%
201788%
201654%

Other parts of the 2021 Mercedes-Benz GLC 300

Engine
30 complaintsExterior lighting
13 complaintsFuel system
12 complaintsElectrical system
8 complaintsOther or unknown
7 complaintsTransmission and drivetrain
4 complaintsBack-over prevention (rear camera)
3 complaintsForward collision avoidance
3 complaintsBody and structure
3 complaintsLane departure
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaints

← All problems reported for the 2021 Mercedes-Benz GLC 300

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