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Mercedes-Benz AMG GLC43Model year report

2020 Mercedes-Benz AMG GLC43 Problems

Complaints
5filed with NHTSA
Median mileage
15,400miles, 2 complaints with mileage
Recalls
7campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
21 mpgcombined, 3.0L 6-cyl 4WD · 18 city / 24 hwy

Sources: NHTSA records for the 2020 Mercedes-Benz AMG GLC43 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 5 consumer complaints for the 2020 Mercedes-Benz AMG GLC43. The part named most often is engine, with 3 complaints (60% of the total), followed by electrical system (2) and back-over prevention (1). 2 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 15,400 miles. NHTSA lists 7 recall campaigns and 194 technical service bulletins for this model year. Engine complaints overlap with 8 technical service bulletins filed under the same part. Electrical system complaints overlap with 2 recall campaigns and 81 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

Engine: “2020 AMG GLC 43 coupe here in Harrison, NJ. My driving style with this vehicle isn't different in any relevant way versus with past vehicles. There is an acceleration dead spot which is the default occurrence when I am coasting at a low speed and then go to accelerate. Common scenarios are driving toward an intersection and rolling forward as you determine if you are clear to go and then accelerating, or slowing down to let a car in the lane next to you go by so you can then switch lanes and accelerate. …”

NHTSA complaint #11560051, filed 2023-12

Electrical system: “At around 11pm on Monday, Sept 20, 2021 I was driving approximately 65 mph on the highway when the vehicle began to abruptly decelerate for no apparent reason, even when I was pushing on the accelerator pedal. When I would push on the accelerator I could hear the engine revving, I confirmed the car was in the Drive gear but the vehicle began to lose speed rapidly and no matter what action I took the car was only slowing down and had to quickly find an emergency area to pull over. My vehicle is available for inspection. …”

NHTSA complaint #11433783, filed 2021-09

Back-over prevention (rear camera): “The contact owns a 2020 Mercedes-Benz AMG GLC43. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while reversing, the rearview camera failed to operate as needed. There was no warning light illuminated. The manufacturer was notified of the failure but provided no assistance. The vehicle was not repaired. …”

NHTSA complaint #11471894, filed 2022-06, 30,000 miles

Mileage when problems were reported

100% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 800 and 30,000 miles.

50%0–100%10–2550%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (2 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 15,400 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

2021202232023
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 2020 Mercedes-Benz AMG GLC43 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
AMG GLC43 4matic 4WD3.0L 6-cyl9-speed automatic182421$3,900
AMG GLC43 4matic Coupe 4WD3.0L 6-cyl9-speed automatic182421$3,900

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

See all 7 recalls for the 2020 Mercedes-Benz AMG GLC43 → · 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. 194 on record; the latest 10 are shown.

See all 194 bulletins →

Other model years of the Mercedes-Benz AMG GLC43

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2021610,0007—20—Not enough data
2020515,4007—21—Not enough data
201962478—21—Not enough data
201865,00010—20—Not enough data

All Mercedes-Benz AMG GLC43 model years

Frequently asked questions

How many NHTSA complaints does the 2020 Mercedes-Benz AMG GLC43 have?

NHTSA recorded 5 consumer complaints for the 2020 Mercedes-Benz AMG GLC43 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2020 Mercedes-Benz AMG GLC43 is reported most often?

Engine is named most often, in 3 complaints (60% of the total), followed by electrical system with 2.

Has the 2020 Mercedes-Benz AMG GLC43 been recalled?

NHTSA lists 7 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2020 Mercedes-Benz AMG GLC43 get?

The EPA rates the 2020 Mercedes-Benz AMG GLC43 (AMG GLC43 4matic, 3.0L 6-cyl) at 21 mpg combined, 18 city and 24 highway, with an estimated annual fuel cost of $3,900 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2020 Mercedes-Benz AMG GLC43 reported?

Among the 2 complaints that include a mileage, the median is 15,400 miles and the middle half falls between 800 and 30,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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.