Model year guide
2021 Mercedes-benz GLS-Class
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 Mercedes-benz GLS-Class is worth — from official NHTSA and EPA data. 1 on record.
2021 Mercedes-benz GLS-Class at a glance
Owner complaints36
Free: that car's specs and build sheet, model-year recall campaigns and a fair price.
2021 Mercedes-benz GLS-Class common problems
Owners have filed 36 complaints with NHTSA. These are the most-reported areas in a sample of the most recent — and what to check before you buy.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Fuel System
Sniff for fuel odor, check for leaks, hard starts or stalling, and confirm the fuel gauge reads correctly.
Gasoline
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
Seats
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
Wheels
Inspect wheels for bends, cracks and curb rash, and feel for vibration at highway speed.
Suspension
Listen for clunks over bumps, check the car sits level, and look for uneven tire wear and worn shocks or struts.
2021 Mercedes-benz GLS-Class trims & engines on record
Trims
GLS580-4M
Engines
4.0L 8-cyl
2021 Mercedes-benz GLS-Class vehicles on record
Other Mercedes-benz GLS-Class model years
2021 Mercedes-benz GLS-Class — frequently asked questions
What are the most common problems with the 2021 Mercedes-benz GLS-Class?
Owners have filed 36 complaints with NHTSA; in a sample of the most recent, the most-reported problem areas are electrical system, fuel system, gasoline.
Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.