Makes Mercedes-BenzS-Class

Mercedes-Benz S-Class MPG

Its best-rated version reaches 26 MPG combined in 2015–2017, the plug-in hybrid S550e. Its weakest year peaked at 16 MPG (2008).

lowest to best versionbest versionbest version is a hybridmedian of its classengine list turned over

652.2 gal

a year at 15,000 miles for the best 2026 version, the S500 4matic. Put it next to its 1994 predecessor, at your own mileage.

Compare in gallons

The Mercedes-Benz S-Class has EPA ratings for 33 model years, 1994–2026, every one of them among large cars. Its best version had the highest combined rating among large cars in 1994–1995, and it placed in its class top five in three model years. In 1995 it shared first place among 34 large cars with the Chrysler Concorde and the Dodge Intrepid.

In 2000 even the most efficient version of the S-Class shared the lowest rating of 18 large cars; it sat in its class's bottom five in 17 model years. Its first diesel version arrived in 1994, when 1 of 153 cars offered one.

Among 16 large cars, 2026

The S-Class placed eighth (tied). The class leader was the Hyundai Sonata at 51 MPG. The next higher rating, 28 MPG, belongs to the BMW 7 Series.

The S-Class, five years at a time

Average rating of its best version per span, placed among large cars.

1994–9811th of 21

1999–0313th of 19

2004–0822nd of 34

2009–1313th of 30

2014–1812th of 29

2019–2311th of 20

2024–26eighth of 14

Where the engine list turned over

2000
New: 4.3-liter 8-cylinder. Best rating 18 → 18 MPG.
2007
New: 5.5-liter 8-cylinder. Best rating 19 → 17 MPG.
2018
New: 3.0-liter 6-cylinder, 4.0-liter 8-cylinder. Best rating 26 → 22 MPG.
2021
New: 3.0-liter 6-cylinder hybrid, 4.0-liter 8-cylinder hybrid. Best rating 23 → 24 MPG.

Powertrains under the name

Diesel
Rated in 1994–1995.
Gasoline
Rated in 1994–2026.
Hybrid
Rated in 2010–2013 and 2021–2026.
Plug-in hybrid
Rated in 2015–2017, 2019–2020, 2023 and 2025.

All 33 model years, best and lowest version

Model years	Best version	Combined	City / hwy	Lowest version	Versions
2026	S500 4matic hybrid	23	20 / 29	15	4
2025	S500 4matic hybrid	24	21 / 31	15	6
2024	S500 4matic hybrid	24	21 / 31	15	4
2023	S500 4matic hybrid	23	20 / 29	14	5
2022	S500 4matic hybrid	24	21 / 30	15	4
2021	S500 4matic hybrid	24	20 / 29	17	7
2020	S560e plug-in hybrid	23	21 / 28	16	13
2019	S560e plug-in hybrid	23	21 / 28	16	15
2018	S450	22	19 / 28	16	14
2017	S550e plug-in hybrid	26	24 / 30	16	12
2015–2016	S550e plug-in hybrid	26	24 / 30	15	9
2014	S550	20	17 / 26	18	3
2011–2013	S400 Hybrid hybrid	21	19 / 25	14	6
2010	S400 Hybrid hybrid	21	19 / 25	13	6
2009	S550	17	14 / 22	13	5
2008	S550	16	14 / 21	13	5
2007	S550	17	14 / 22	13	4
2006	S430	19	16 / 24	13	8
2004–2005	S430	19	16 / 24	13	6
2003	S430	18	15 / 22	14	6
2002	S430	18	15 / 22	16	4
2001	S430	18	16 / 23	16	4
2000	S430	18	15 / 22	17	2
1999	S320	18	15 / 22	13	4
1998	S320	18	15 / 22	13	5
1996–1997	S320	18	15 / 22	14	6
1995	S350 diesel	21	19 / 26	13	7
1994	S350D diesel	21	19 / 26	13	7

Version names in the EPA list: AMG S63 4matic, AMG S63 4matic Convertible, AMG S63 4matic Coupe, AMG S63 4matic Plus, AMG S63 4matic Plus Convertible, AMG S63 4matic Plus Coupe, AMG S63 E Performance, AMG S65, AMG S65 Convertible, AMG S65 Coupe, Maybach S560 4matic, Maybach S650, Maybach S680 4matic, S320, S350, S350D, S400 Hybrid, S420, S430, S430 4matic, S450, S450 4matic, S500, S500 4matic, S500 Coupe, S500 Sedan, S55 AMG, S550, S550 4matic, S550 4matic Coupe, S550 Convertible, S550e, S560, S560 4matic, S560 4matic Coupe, S560 4matic Maybach, S560 Convertible, S560e, S580 4matic, S580 4matic Maybach.

Same class, 2026

Hyundai Sonata51 MPG Genesis G8023 MPG Audi A822 MPG Rolls-Royce Phantom14 MPG