Mercedes E-Class Coupe — MPG & Fuel Costs 2025
Mercedes' premium executive coupe, providing elegant styling, pillared-free side profiles, and refined highway cruising.
TL;DR
33 MPG
Real-world petrol
45 MPG
Real-world diesel
66L
Tank capacity
£90.29
Full tank (petrol)
18.8p
Per mile (petrol)
Real-World Fuel Economy: The Mercedes E-Class Coupe achieves an estimated 33 MPG (petrol) and 45 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 66-litre tank completely costs approximately £90.29 (petrol) or £93.79 (diesel) at average UK fuel price rates.
Fuel economy at a glance
33
Real-world MPG
Petrol
39.2
Official WLTP
Petrol
45
Real-world MPG
Diesel
53.3
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £942 | £718 |
| 7,400 miles/yr(UK average) | £1395 | £1062 |
| 10,000 miles/yr | £1885 | £1436 |
| 15,000 miles/yr | £2827 | £2153 |
| 20,000 miles/yr | £3769 | £2871 |
| Full tank (66L) | £90.29 | £93.79 |
| Cost per mile | 18.8p | 14.4p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the E-Class Coupe compare?
Tips to get better MPG from your E-Class Coupe
The low-slung, pillarless coupe shape has low drag; maintain constant speeds for good highway runs.
Use Eco settings to smooth throttle responses.
Maintain tyre pressures at recommended settings.
Is the cheaper petrol station worth it?
In a Mercedes E-Class Coupe achieving ~33 MPG real-world, if you fill 53 litres and the alternative station is 10p/litre cheaper:
£5.30
Gross saving on fuel
£0.57
Cost of 3-mile detour
£4.73
Net saving ✓
You could drive up to 28 miles round-trip before the saving disappears entirely.
Calculate for your exact situationPopular variants
Frequently asked questions
What is the real-world MPG of the Mercedes E-Class Coupe?
The Mercedes E-Class Coupe achieves approximately 33 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 39.2 MPG due to real driving conditions. Diesel variants achieve around 45 MPG real-world.
How much does it cost to fill a Mercedes E-Class Coupe?
The Mercedes E-Class Coupe has a fuel tank of 66 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £90.29. Diesel costs approximately £93.79 for a full tank.
What is the annual fuel cost for a Mercedes E-Class Coupe?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Mercedes E-Class Coupe costs approximately £1395 per year in fuel. At 10,000 miles/year the cost rises to £1885. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Mercedes E-Class Coupe?
In a Mercedes E-Class Coupe doing ~33 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 53-litre fill nets approximately £4.73 after the extra fuel cost. You could drive up to 28 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Mercedes E-Class Coupe cost per mile in fuel?
The Mercedes E-Class Coupe costs approximately 18.8p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £5.64 per day in fuel.
What is the WLTP MPG figure for the Mercedes E-Class Coupe?
The official WLTP fuel economy figure for the Mercedes E-Class Coupe is 39.2 MPG. However, real-world MPG is typically 10–15% lower than WLTP due to cold starts, air conditioning, motorway speeds, and varying loads. WorthThePump uses a 12% real-world penalty to give a more accurate estimate.
Related guides
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