2018 Mercedes-Benz GLC-Class problems and recalls

Owners filed 57 complaints on the 2018 Mercedes-Benz GLC-Class in the last three full years, out of 99 on record. The most cited component is the Engine.

99
Complaints
0
Recalls
5
Crash reports
1
Fire reports
4
Injuries
59.8
Severity index

Severity index 59.8 Medium. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 59.8p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Ranked 50 of 122 by severity index among 2018 vehicles with at least 40 complaints, highest first. 59% of those vehicles scored lower. Full 2018 ranking.

Components cited in complaints

EngineEngine: 32 complaints (32.3%)32 32%Unknown Or OtherUnknown Or Other: 22 complaints (22.2%)22 22%Electrical SystemElectrical System: 15 complaints (15.2%)15 15%StructureStructure: 11 complaints (11.1%)11 11%Power TrainPower Train: 10 complaints (10.1%)10 10%Fuel/Propulsion SystemFuel/Propulsion System: 8 complaints (8.1%)8 8%Seat BeltsSeat Belts: 8 complaints (8.1%)8 8%Air BagsAir Bags: 7 complaints (7.1%)7 7%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
ENGINE3232.3%
UNKNOWN OR OTHER2222.2%
ELECTRICAL SYSTEM1515.2%
STRUCTURE1111.1%
POWER TRAIN1010.1%
FUEL/PROPULSION SYSTEM88.1%
SEAT BELTS88.1%
AIR BAGS77.1%

Complaints filed per year

015302018: 132019: 72020: 62021: 22022: 102023: 302024: 172025: 102026: 4 (partial year)18192021222330242526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
201813
20197
20206
20212
202210
202330
202417
202510
2026 (year to date)4
Filings in 2023 to 2025 ran 3.2x those in 2020 to 2022 (57 against 18).

Other Mercedes-Benz GLC-Class model years

Severity index for every other model year on file. Compare all 7 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-08-07. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.