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2020 Mercedes-benz GLB
Solid pick. The public record on this car is clean for its age. Inspect it, then negotiate with confidence.
56 owner complaints · 0 recalls · data verified July 18, 2026 · source: NHTSA
Why buy?
Body & structure problems dominate (25% of complaints).
Zero recalls, rare for a car this age.
Score breakdown, by factor
Full methodology →#138 of 389Among the 2020 models with a matured record, the 2020 Mercedes-benz GLB ranks #138, scoring higher than 62% of them. See the 2020 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.
NHTSA crash-tested this model year but didn’t publish an overall star rating for it.
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 2020 Mercedes-benz GLB, plotted where owners report it happening.
Also reported (mileage varies): Body & structure (14) · Electrical system (9) · Engine (8) · Fuel system (7)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Body & structure
25%14 complaints · 3 in the last 2 years
“The contact owns a 2020 Mercedes-Benz GLB250. The contact stated while driving 45 MPH, the rear spoiler detached from the vehicle. There were no warning lights illumin…”
Electrical system
16%9 complaints
“My GLB250 does not fall under recall 2020070009 however after taking it through the car wash the entire display instrument went out and car will not turn on and off. T…”
Engine
14%8 complaints · 4 in the last 2 years
“I have a passenger malfunction with airbags warning coming. I also just experienced getting gas. My milage counted down to zero which it never has before and my engine…”
Fuel system
13%7 complaints · 3 in the last 2 years
“I have a passenger malfunction with airbags warning coming. I also just experienced getting gas. My milage counted down to zero which it never has before and my engine…”
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.
Too few owners named a mileage on this model to place issues against an odometer yet.
Read all 56 owner complaints in their own words → · just the 4 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 body & structure problems more than anything else. Has this car shown any body & structure symptoms, and are there repair records for it?
- Owners of this model report electrical system problems more than anything else. Has this car shown any electrical 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 2020 Mercedes-benz GLB beats every score on the internet, including ours.
What to ask forNot set on the 2020? See how every GLB model year scores →
Cross-shopping? Compare the 2020 Mercedes-benz GLB 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.