Skip advert
Advertisement

Mercedes S-Class Coupe - MPG, running costs & CO2 (2014-2020)

No diesel or hybrid model means the S-Class coupe has big fuel bills

Carbuyer Rating

3.7 out of 5

Owners Rating

5.0 out of 5

Read owner reviews
MPG, running costs & CO2 Rating

1.5 out of 5

General running costs of any car as powerful and sophisticated as the S-Class Coupe can be expected to be sky-high, but for once we can say that fuel consumption is unlikely to be the most off-putting aspect of running one on a daily basis.

Mercedes S-Class Coupe MPG & running costs

Clever cylinder-deactivation technology means the 'entry-level' S560 is claimed to achieve 34mpg, which is a remarkable figure for a 463bhp car. Its 188g/km CO2 emissions are less impressive – and if you can claim an S Coupe as a company car, you'll be liable to pay the top 37% Benefit-in-Kind (BiK) tax band.

Move up to the even more powerful Mercedes-AMG S 63 and fuel consumption only increases to 31.7mpg, with CO2 emissions rising to 203g/km. The V12-engined S 65 flagship uses rather more old-school technology and its 23.7mpg fuel consumption and 279g/km CO2 output expose this fact.

Advertisement - Article continues below

Every S-Class Coupe will be liable for £450-a-year road tax, falling to £140 after the car's sixth birthday.

Insurance

Car insurance will also be costly. Expect a group 50 rating across the range and costs likely to vary hugely between drivers. It's always best to obtain an insurance cover quote before you make a buying decision.

Servicing

Expect routine maintenance to be similarly wallet-draining. While the basic annual (yearly or 15,000-mile) oil change might not break the bank, other scheduled operations such as transmission and brake fluid changes, spark plug renewal and air filter replacement will rapidly build up.

Mercedes offers service plans that can take the edge off routine service costs, but wear and tear items won't be included – and the enormous tyres and brake discs that the S-Class coupe needs won't come cheap when replacement is necessary.

Warranty

Every Mercedes sold in the UK is supplied with a three-year/unlimited-mileage warranty, which can be optionally extended. Where an extended warranty is added, though, be aware that it does impose certain limitations, which will be outlined in detail if you decide to buy.

Skip advert
Advertisement

Richard is a former editor of Carbuyer, as well as sister site DrivingElectric.com, and he's now Deputy Editor at Auto Express. Having spent a decade working in the automotive industry, he understands exactly what makes new car buyers tick.

Skip advert
Advertisement

Most Popular

Ford EcoBoost engines: reliability, problems and should you buy one?
Ford Puma EcoBoost front
Tips and advice
5 Nov 2024

Ford EcoBoost engines: reliability, problems and should you buy one?

BMW M5 review – the most capable M5 ever is now a PHEV
BMW M5 Touring rear quarter cruising
In-depth reviews
5 Nov 2024

BMW M5 review – the most capable M5 ever is now a PHEV

Car tax: VED rates and increases explained 2024/25
Car tax
Tips and advice
4 Nov 2024

Car tax: VED rates and increases explained 2024/25

Tips & advice

View All
Car dashboard warning lights: what does each symbol mean?
Car dashboard symbols and meanings
Tips and advice
21 Oct 2024

Car dashboard warning lights: what does each symbol mean?

Electric car charging stations: public networks, charger types, apps and maps
Charging station
Tips and advice
23 Jul 2024

Electric car charging stations: public networks, charger types, apps and maps

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Tips and advice
17 May 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
21 Mar 2024

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors

Top 10 best electric cars 2024
Best electric cars
Best cars
16 May 2024

Top 10 best electric cars 2024

Top 10 best cheap-to-run cars 2024
The best cheap-to-run cars 2023
Best cars
2 Jan 2024

Top 10 best cheap-to-run cars 2024

The UK's top 10 fastest hot hatchbacks 2024
Fastest hot hatchbacks hero
Best cars
2 Jan 2024

The UK's top 10 fastest hot hatchbacks 2024