2021 Mercedes-Benz S-Class
The 2021 Mercedes-Benz S-Class is sold in the U.S. as a hybrid and gas large car with 7 EPA-rated configurations. The most efficient version, the S500 4matic, is EPA-rated at 24 mpg combined. NHTSA lists 17 recall campaigns for this model year, 1 rated critical, which gives it a Safety Signal grade of F. Owners have filed 34 complaints, most often about the electrical system.
Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| S500 4matic | Hybrid | 4WD | 3.0L 6-cyl + 48V Li-Ion | 20 | 29 | 24 | $3,250 |
| S580 4matic | Hybrid | 4WD | 4.0L 8-cyl turbo + 48V Li-Ion | 17 | 25 | 20 | $3,900 |
| S580 4matic Maybach | Hybrid | 4WD | 4.0L 8-cyl turbo + 48V Li-Ion | 16 | 24 | 19 | $4,100 |
| S560 4matic Coupe | Gas | 4WD | 4.0L 8-cyl turbo | 16 | 26 | 20 | $3,900 |
| S560 Convertible | Gas | RWD | 4.0L 8-cyl turbo | 16 | 26 | 20 | $3,900 |
| AMG S63 4matic Plus Coupe | Gas | 4WD | 4.0L 8-cyl turbo | 16 | 26 | 19 | $4,100 |
| AMG S63 4matic Plus Convertible | Gas | 4WD | 4.0L 8-cyl turbo | 14 | 24 | 17 | $4,550 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 44090, 44163, 44162, 43533, 43529, 43534, 43530.
Factory warranty running out?
The 2021 Mercedes-Benz S-Class is in the years where transmission, electronics and drivetrain repairs land on the owner. Compare extended-coverage quotes in about two minutes.
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Recalls (17)
Source: NHTSA recall databaseElectrical System
2024110002Engine And Engine Cooling
2024100007Fuel System, Gasoline
2023070012Electrical System
2023040009Visibility
2023020008Back Over Prevention
2022080002Electrical System
See Recall ScheduleSteering
2022040006Steering
2022040010Exterior Lighting
2022040013Air Bags
2022030024Electrical System
2022010003Engine And Engine Cooling
2022010002Air Bags
2021100010Fuel System, Gasoline
2021090012Electrical System
2021020025Owner complaints
Source: NHTSA complaint database2 involved a crash · 0 a fire · 3 injuries · 1 deaths reported
Filed per year: 2021: 6 · 2022: 7 · 2023: 5 · 2024: 5 · 2025: 7 · 2026: 4
Most-cited components
What owners describe
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Crash ratings
Source: NHTSA NCAPNHTSA has not published 5-Star crash ratings for this model year.
Other S-Class model years
2027 Mercedes-Benz S-Class
0 recalls · 0 complaints
A2026 Mercedes-Benz S-Class
0 recalls · 0 complaints
A2025 Mercedes-Benz S-Class
1 recalls · 2 complaints
C2024 Mercedes-Benz S-Class
2 recalls · 3 complaints
F2023 Mercedes-Benz S-Class
8 recalls · 10 complaints
F2022 Mercedes-Benz S-Class
9 recalls · 44 complaints
F2020 Mercedes-Benz S-Class
6 recalls · 8 complaints
F2019 Mercedes-Benz S-Class
13 recalls · 17 complaints
F2018 Mercedes-Benz S-Class
14 recalls · 26 complaints
F2017 Mercedes-Benz S-Class
10 recalls · 20 complaints
F2016 Mercedes-Benz S-Class
7 recalls · 29 complaints
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.