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2021 Mercedes-benz Glc-class
Solid pick. The public record on this car is clean for its age. Inspect it, then negotiate with confidence.
61 owner complaints · 0 recalls · data verified July 14, 2026 · source: NHTSA
Why buy?
Engine problems dominate (48% of complaints, typically reported near 42k miles).
Zero recalls, rare for a car this age.
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
How it crashes
NHTSA’s own crash tests, separate from the reliability score above.
5/5 overall
NHTSA 5-Star Safety Rating · 2021 Mercedes-Benz GLC SUV RWD
Rollover risk in a single-vehicle crash: 19%
No open NHTSA defect investigations on file.
Source: nhtsa.gov/ratings. Star ratings compare vehicles within the same class and size, not across every car on the road.
The road ahead
What breaks on a 2021 Mercedes-benz Glc-class, plotted where owners report it happening.
Also reported (mileage varies): Fuel system (11) · Lights (10) · Electrical system (7)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Engine
48%29 complaints · typically near 42k mi · 21 in the last 2 years
“Getting P06DA trouble code meaning that there is something wrong with the oil pressure solenoid in the oil sump. this is a known issue where the wiring of the solenoid…”
Fuel system
18%11 complaints · 4 in the last 2 years
“The vehicle lost power and will not operate over 40 mph/2000 rpms”
Lights
16%10 complaints · 9 in the last 2 years
“The headlights stopped working due to water entering the assembly unit. First one side went out and then eventually the other side went out. The car was brought in to …”
Electrical system
11%7 complaints · 5 in the last 2 years
“I seen a recall for certain 2021 GLC 300 vehicles for moisture in right side headlamp, causing headlamp to blow (go out). This happened on my 2021 GLC 300. Same moistu…”
Recalls (0)
No recall campaigns on file for this model year.
Before you hand over money
Check the VIN for open recalls
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150 to $250 independent inspection of this exact 2021 Mercedes-benz GLC-CLASS beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every Glc-class model year scores →
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What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.