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Mercedes-Benz GLC 300 4MATICModel year report

2026 Mercedes-Benz GLC 300 4MATIC Problems

Compared with other Mercedes-Benz GLC 300 4MATIC years

Too new to compare

Based only on NHTSA complaints, recalls and investigations. Not adjusted for how many vehicles were sold, and not a reliability rating. How this is calculated

Complaints
6filed with NHTSA
Median mileage
5,769miles, 1 complaints with mileage
Recalls
3campaigns on record
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA crash rating
—no overall rating published
EPA fuel economy
26 mpgcombined, 2.0L 4-cyl · hybrid AWD · 23 city / 31 hwy

Sources: NHTSA records for the 2026 Mercedes-Benz GLC 300 4MATIC (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 6 consumer complaints for the 2026 Mercedes-Benz GLC 300 4MATIC. The part named most often is electrical system, with 4 complaints (67% of the total), followed by back-over prevention (1) and brakes (1). 1 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 5,769 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 3 recall campaigns and 113 technical service bulletins for this model year. Electrical system complaints overlap with 1 recall campaign and 61 technical service bulletins filed under the same part. Back-over prevention complaints overlap with 3 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “I was parked for a few minutes and I suddenly noticed a strong oder coming into my vehicle. I could not pinpoint what the smell was, but I knew that whatever was coming into the SUV was not safe. My screen started flashing warnings Service Required: Do Not Drive “Do Not Shift Gears”. After the warning, white smoke started to roll out from under the hood and into the vehicle. I immediately ran back to get my baby out of her car seat and to safety. I was at my local YMCA and staff ran out to I assist me and had a fire extinguisher. YMCA called the police and fire department. …”

NHTSA complaint #11743388, filed 2026-06

Back-over prevention (rear camera): “Backup camera keeps opening and closing constantly while driving in slow speeds. While driving, backup camera keeps opening and closing, creating a noise and distraction to the driver and might cause accidents. The issue has been confirmed by the Mercedes Benz dealership service manager, describing as a recurrent in specific models with no current action plan or solution on near future. The car and component has been checked by the manufacturer. There are no warning lamps or symptoms prior to the problem occurrence and appeared at the first couple of days driving the car out of the dealership.”

NHTSA complaint #11710801, filed 2026-01

Brakes: “The breaks on these vehicles are extremely dangerous . Before I leased this vehicle test drove 3 vehicles. The salesman said the breaks will adjust as you drive. They have not. ITS all over the internet that this vehicle has very unresponsive breaks. It takes 75 precent of pressure pushing down on the break pad distance before the car breaks engage. I already almost had an accident as the distance it takes for the car to respond is a significant distance before the car comes to a full stop. …”

NHTSA complaint #11733775, filed 2026-04

Mileage when problems were reported

100% of the 1 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 5,769 and 5,769 miles.

100%0–100%10–250%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (1 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 5,769 miles.

Complaints by year filed

This model year is less than 4 years old, so a trend is not meaningful yet.

20266
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2026 Mercedes-Benz GLC 300 4MATIC version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
GLC300 4matic AWD2.0L 4-cyl · hybrid9-speed automatic233126$3,150
GLC300 4matic (coupe) AWD2.0L 4-cyl · hybrid9-speed automatic233126$3,150

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2026 Mercedes-Benz GLC 300 4MATIC → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 113 on record; the latest 10 are shown.

See all 113 bulletins →

Other model years of the Mercedes-Benz GLC 300 4MATIC

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
202665,7693—26—Too new
202510—3—26—Too new
2024831,1533—27—Too new
2023939,0004—22—Too new

All Mercedes-Benz GLC 300 4MATIC model years

Frequently asked questions

How many NHTSA complaints does the 2026 Mercedes-Benz GLC 300 4MATIC have?

NHTSA recorded 6 consumer complaints for the 2026 Mercedes-Benz GLC 300 4MATIC as of Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2026 Mercedes-Benz GLC 300 4MATIC is reported most often?

Electrical system is named most often, in 4 complaints (67% of the total), followed by back-over prevention with 1.

Has the 2026 Mercedes-Benz GLC 300 4MATIC been recalled?

NHTSA lists 3 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2026 Mercedes-Benz GLC 300 4MATIC get?

The EPA rates the 2026 Mercedes-Benz GLC 300 4MATIC (GLC300 4matic, 2.0L 4-cyl · hybrid) at 26 mpg combined, 23 city and 31 highway, with an estimated annual fuel cost of $3,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2026 Mercedes-Benz GLC 300 4MATIC reported?

Among the 1 complaints that include a mileage, the median is 5,769 miles and the middle half falls between 5,769 and 5,769 miles; 100% were filed for vehicles with under 50,000 miles.

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. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.