2021 · Compact Car · Hybrid

2021 Mercedes-Benz CLS-Class Hybrid MPG & fuel economy

The 2021 Mercedes-Benz CLS-Class Hybrid is a compact car offered in 3 EPA-rated configurations. The most efficient version returns 26 MPG combined (23 city / 30 highway) on premium gasoline. Across the lineup, combined ratings range from 23 to 26 MPG. Efficiency is unchanged from the 2020 model. Among 37 compact cars rated for 2021, it ranks 28th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel.

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Combined 26 MPG 23 MPG city · 30 MPG hwy

Driving range — not published for this model

Your fuel cost $2,279 15,000 mi/yr · $15.19 per 100 mi

Class rank, 2021 #28 of 37 Compact Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Premium gas $/gal

Fuel average

The 2021 Mercedes-Benz CLS-Class Hybrid's fuel average is 11.1 km/L (9.0 L/100 km), or 26 MPG combined: 9.8 km/L in the city and 12.8 km/L on the highway.

	MPG	km/L	L/100 km
City	23	9.8	10.2
Highway	30	12.8	7.8
Combined	26	11.1	9.0

How it ranks among 2021 Compact Cars

Full class ranking →

1Kandi K27114 MPGe $796
2Toyota Corolla Hybrid52 MPG $894
3Honda Insight52 MPG $894
4Lexus UX Hybrid42 MPG $1,107
5Mitsubishi Mirage39 MPG $1,192
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28Mercedes-Benz CLS-Class Hybrid26 MPG $2,279
···
37Toyota Mirai74 MPGe $7,297

2021 CLS-Class HybridOther compact carsClass median: $1,826/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

CLS-Class Hybrid MPG across model years

Full history →

3 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 3.0L 6-cyl turbo · 9-speed automatic CLS450	Hybrid	23 MPG	30 MPG	26 MPG	—	$2,279
4WD · 3.0L 6-cyl turbo · 9-speed automatic CLS450 4matic	Hybrid	22 MPG	29 MPG	25 MPG	—	$2,370
4WD · 3.0L 6-cyl · 9-speed automatic AMG CLS53 4matic Plus	Hybrid	21 MPG	26 MPG	23 MPG	—	$2,576

Specs (most efficient configuration)

Fuel: Premium gasoline
Engine / motor: 3.0L 6-cyl turbo
Transmission: 9-speed automatic
Drivetrain: RWD
Passenger volume: 93 cu ft
Cargo volume: 12 cu ft
Tailpipe CO₂: 347 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2021 Mercedes-Benz CLS-Class Hybrid vs. rivals

vs BMW M Hybrid 26 MPG · $2,279/yr Same fuel cost vs Volvo S60 27 MPG · $2,194/yr S60 saves $84/yr vs Acura TLX 25 MPG · $2,370/yr CLS-Class Hybrid saves $91/yr vs Genesis G70 25 MPG · $2,370/yr CLS-Class Hybrid saves $91/yr vs Audi A4 Hybrid 28 MPG · $2,116/yr A4 Hybrid saves $163/yr vs Cadillac CT4 27 MPG · $2,194/yr CT4 saves $84/yr vs Lexus IS 25 MPG · $2,370/yr CLS-Class Hybrid saves $91/yr vs Jaguar XE 28 MPG · $2,116/yr XE saves $163/yr vs Audi S4 23 MPG · $2,576/yr CLS-Class Hybrid saves $297/yr vs BMW 3 Series 30 MPG · $1,975/yr 3 Series saves $304/yr vs BMW 3 Series Plug-in Hybrid 75 MPGe + 28 MPG · $1,666/yr 3 Series Plug-in Hybrid saves $613/yr vs BMW 5 Series Plug-in Hybrid 64 MPGe + 26 MPG · $1,826/yr 5 Series Plug-in Hybrid saves $453/yr

Compare the 2021 CLS-Class Hybrid

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Frequently asked questions

What is the gas mileage of the 2021 Mercedes-Benz CLS-Class Hybrid?

Up to 26 MPG combined (23 city / 30 highway); ratings range from 23 to 26 MPG depending on configuration.

What fuel does the 2021 Mercedes-Benz CLS-Class Hybrid use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2021 Mercedes-Benz CLS-Class Hybrid?