Makes›Mercedes-Benz›S-Class›2018

2018 Mercedes-Benz S-Class

Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2018 models.

Class: Large Cars
Body styles: S 450 4matic 4dr Sedan, S 560 4matic 4dr Sedan Lwb, S 560 4matic 4dr Sedan Swb, S 63 Amg 4matic 4dr Sedan
Engines: 3.0L 6-cyl turbo, 4.0L 8-cyl turbo, 6.0L 12-cyl turbo
Drivetrain: Rear-Wheel Drive, 4-Wheel Drive, Front-Wheel Drive
Fuel: Premium Gasoline
MPG (best): 22 combined · 19 city / 28 hwy
Length: 198–208.3 in
Curb weight: 4,608–4,969 lb
NHTSA rating: Not rated
Recalls: 0 campaigns

Pros & cons

What's good

AWD / 4WD available
No recalls so far

Watch out for

Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.

Calculated from EPA, NHTSA and vPIC data — not a review. How we calculate this →

Overview

The 2018 Mercedes-Benz S-Class is a large car offered with 3 engines (3.0L 6-cyl turbo, 4.0L 8-cyl turbo and 6.0L 12-cyl turbo) and rear-wheel drive, 4-wheel drive and front-wheel drive.

It measures about 202 inches long and 75 inches wide on a 120-inch wheelbase, with a curb weight of roughly 4,619 lb (S 450 4matic 4dr Sedan).

EPA rates its most efficient version at 22 MPG combined (19 city / 28 highway), 5% worse than the 2018 large car average of 23.1 MPG, for an estimated $3,750 a year in fuel.

NHTSA has not published a 5-Star overall rating for this model year.

There are no recalls or owner complaints on file with NHTSA for this model year.

What changed for 2018

No plug-in hybrid version any more
Engine added: 4.0L 8-cyl turbo
Engines dropped: 4.7L 8-cyl turbo and 5.5L 8-cyl turbo
Best combined MPG down from 26 to 22

Compared with 2017; trim, feature and price changes aren't covered. See the 2017 S-Class →

Dimensions & weight

Body	Length	Width	Height	Wheelbase	Track F / R	Curb weight	Weight F/R
S 450 4matic 4dr Sedan	201.6 in	74.8 in	59.1 in	119.7 in	64.6 / 64.2 in	4,619 lb	53/47
S 560 4matic 4dr Sedan Lwb	206.7 in	74.8 in	58.7 in	124.4 in	64.6 / 64.2 in	4,773 lb	53/47
S 560 4matic 4dr Sedan Swb	201.6 in	74.8 in	59.1 in	119.7 in	64.6 / 64.2 in	4,729 lb	53/47
S 63 Amg 4matic 4dr Sedan	208.3 in	74.8 in	59.1 in	124.4 in	64.6 / 64.2 in	4,806 lb	53/47
S 65 Amg 4dr Sedan	208.3 in	74.8 in	59.1 in	124.4 in	64.6 / 64.2 in	4,969 lb	53/47
S550 4matic 2dr Coupe	198 in	74.8 in	55.5 in	116.1 in	64.2 / 65 in	4,608 lb	53/47

Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.

Will it fit your garage? Check with your measurements →

Engines, MPG & running costs

Version	Engine	Transmission	Drive	City / Hwy / Comb	vs. class	Fuel / yr	CO₂ g/mi
S450	3.0L 6-cyl turbo	Automatic 9-spd	Rear-Wheel Drive	19 / 28 / 22	-5%	$3,750	403
S450 4matic	3.0L 6-cyl turbo	Automatic 9-spd	4-Wheel Drive	18 / 28 / 22	-5%	$3,750	408
S560 4matic	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	17 / 27 / 21	-9%	$3,900	426
S560 4matic Coupe	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	17 / 27 / 21	-22%	$3,900	426
S560	4.0L 8-cyl turbo	Automatic 9-spd	Front-Wheel Drive	17 / 27 / 21	-9%	$3,900	426
AMG S63 4matic	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	17 / 26 / 20	-13%	$4,100	443
S560 Convertible	4.0L 8-cyl turbo	Automatic 9-spd	Front-Wheel Drive	17 / 26 / 20	-16%	$4,100	439
AMG S63 4matic Coupe	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	17 / 27 / 20	-26%	$4,100	437
Maybach S560 4matic	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	16 / 25 / 19	-18%	$4,350	455
AMG S63 4matic Convertible	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	15 / 24 / 18	-24%	$4,550	493
Maybach S650	6.0L 12-cyl turbo	Automatic 7-spd	Rear-Wheel Drive	13 / 21 / 16	-31%	$5,150	572
AMG S65	6.0L 12-cyl turbo	Automatic 7-spd	Rear-Wheel Drive	13 / 22 / 16	-31%	$5,150	574
AMG S65 Convertible	6.0L 12-cyl turbo	Automatic 7-spd	Rear-Wheel Drive	14 / 21 / 16	-32%	$5,150	542
AMG S65 Coupe	6.0L 12-cyl turbo	Automatic 7-spd	Rear-Wheel Drive	13 / 21 / 16	-41%	$5,150	553

4/10EPA fuel economy score (best version)

4/10EPA greenhouse gas score

Spend $6,750Fuel over 5 years vs. average new car

23.1 MPG2018 Large Cars average

EPA estimates; "vs. class" is combined MPG against the 2018 EPA class average. How we calculate this →

Safety ratings & technology

NHTSA has not published 5-Star ratings for the 2018 Mercedes-Benz S-Class.

Similar 2018 large cars

Model	Best MPG / range	NHTSA overall	Recalls
2018 Mercedes-Benz S-Class (this car)	22 MPG	Not rated	0
2018 BMW 7 Series	27 MPG	Not rated	0
2018 Tesla Model S	335 mi	Not rated	11

Recalls (0)

No vehicle recalls on file with NHTSA for the 2018 Mercedes-Benz S-Class.

Check your VIN for open recalls at NHTSA ↗

Not every 2018 Mercedes-Benz S-Class is affected — only a VIN check confirms your car.

Owner-reported problems

No owner complaints for the 2018 Mercedes-Benz S-Class in NHTSA's database since 2015.

Used 2018 Mercedes-Benz S-Class buyer's checklist

Run the VIN at nhtsa.gov/recalls. No recalls on file, but check anyway.
Before you pay: service records, a history report and an independent inspection.

Generated by DecodedCars from NHTSA recalls and owner complaints for the 2018 Mercedes-Benz S-Class. Not a substitute for a professional inspection.

Other S-Class years

Compare all years →

Year	MPG (best)	Length	Overall
2027 S-Class	23	–	Not rated
2026 S-Class	23	208.3 in	Not rated
2025 S-Class	24	208.3 in	Not rated
2024 S-Class	24	208.3 in	Not rated
2023 S-Class	23	209.4 in	Not rated
2022 S-Class	24	205.1 in	Not rated
2021 S-Class	24	205.1 in	Not rated
2020 S-Class	23	201.6 in	Not rated
2019 S-Class	23	201.6 in	Not rated
2017 S-Class	26	201.6 in	Not rated
2016 S-Class	26	201.6 in	Not rated
2015 S-Class	26	201.6 in	Not rated

Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Mercedes-Benz. How we calculate this →