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2021 Mercedes-benz GLC Coupe
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 20, 2026 · source: NHTSA
Why buy?
Engine problems dominate (48% of complaints, typically reported near 42k miles).
Zero recalls, rare for a car this age.
Score breakdown, by factor
Full methodology →#195 of 456Among the 2021 models with a matured record, the 2021 Mercedes-benz GLC Coupe ranks #195, scoring higher than 54% of them. See the 2021 ranking →
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 Coupe, 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…”
Check it against this car’s mileage
Type the odometer reading on the actual car you’re looking at to see which of these problem areas owners tend to report before it, around it, or after it.
We can place 1 of this model's commonly reported problem areas against a mileage. Nothing is stored.
Read all 61 owner complaints in their own words → · just the 2 crash/fire/injury reports →
Recalls (0)
No recall campaigns on file for this model year.
Questions to ask the seller
Questions worth asking the seller of this Mercedes-benz before you buy, drawn from its public record:
- Owners of this model report engine problems more than anything else (owners tend to report it near 42k miles). Has this car shown any engine symptoms, and are there repair records for it?
- Owners of this model report fuel system problems more than anything else. Has this car shown any fuel system symptoms, and are there repair records for it?
- Has this car been in any accident or had any structural, airbag, or flood-related repair? Do you have a clean title and a recent history report (Carfax / AutoCheck)?
- How many owners has it had, do you have the maintenance records, and why are you selling it?
- Are you open to me having an independent mechanic inspect it before we settle on a price?
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 COUPE beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every GLC Coupe model year scores →
Cross-shopping? Compare the 2021 Mercedes-benz GLC Coupe against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.