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2021 Mercedes-benz S-class Hybrid
Solid pick. The public record on this car is clean for its age. Inspect it, then negotiate with confidence.
33 owner complaints · 0 recalls · data verified July 14, 2026 · source: NHTSA
Why buy?
Electrical system problems dominate (30% of complaints).
Very few owner complaints for its age and sales volume.
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.
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 2021 Mercedes-benz S-class Hybrid, plotted where owners report it happening.
Also reported (mileage varies): Electrical system (10) · Wheels (6) · Driver assistance (5) · Engine & cooling (5)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Electrical system
30%10 complaints · 1 in the last 2 years
“False warning message for right taillights/brake lights/signal light in rear lamp.”
Wheels
18%6 complaints · 4 in the last 2 years
“Excessive Tire failure on "AMG" 21 inch wheel and tires. Pirelli tires have replaced 4 tires in four months. cracks in side wall bubbling.”
Driver assistance
15%5 complaints · 1 in the last 2 years
“While on the freeway, going approximately 70 mph, the vehicles onboard cameras all failed and I got a warning that said “camera dirty/unavailable/traffic sign assist c…”
Engine & cooling
15%5 complaints · 3 in the last 2 years
“The contact owns a 2021 Mercedes-Benz S580. The contact received notification of NHTSA Campaign Number: 24V704000 (ENGINE AND ENGINE COOLING); however, the part to do …”
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 S-CLASS HYBRID beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every S-class Hybrid model year scores →
Cross-shopping? Compare the 2021 Mercedes-benz S-class Hybrid 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.