Mercedes GLE — MPG & Fuel Costs 2025
Mercedes' luxury mid-size SUV, offering supreme ride comfort, massive space, and a choice of efficient diesel engines.
TL;DR
25 MPG
Real-world petrol
33 MPG
Real-world diesel
85L
Tank capacity
£116.28
Full tank (petrol)
24.9p
Per mile (petrol)
Real-World Fuel Economy: The Mercedes GLE achieves an estimated 25 MPG (petrol) and 33 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 85-litre tank completely costs approximately £116.28 (petrol) or £120.78 (diesel) at average UK fuel price rates.
Fuel economy at a glance
25
Real-world MPG
Petrol
29.4
Official WLTP
Petrol
33
Real-world MPG
Diesel
39.2
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £1244 | £979 |
| 7,400 miles/yr(UK average) | £1841 | £1449 |
| 10,000 miles/yr | £2488 | £1958 |
| 15,000 miles/yr | £3731 | £2936 |
| 20,000 miles/yr | £4975 | £3915 |
| Full tank (85L) | £116.28 | £120.78 |
| Cost per mile | 24.9p | 19.6p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the GLE compare?
Tips to get better MPG from your GLE
The GLE is a heavy premium SUV; maintain a steady speed and avoid jackrabbit starts.
Set suspension to lower height on motorway stretches to optimize aerodynamics.
Maintain tyre pressures at recommended settings.
Is the cheaper petrol station worth it?
In a Mercedes GLE achieving ~25 MPG real-world, if you fill 68 litres and the alternative station is 10p/litre cheaper:
£6.80
Gross saving on fuel
£0.75
Cost of 3-mile detour
£6.05
Net saving ✓
You could drive up to 27 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 GLE?
The Mercedes GLE achieves approximately 25 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 29.4 MPG due to real driving conditions. Diesel variants achieve around 33 MPG real-world.
How much does it cost to fill a Mercedes GLE?
The Mercedes GLE has a fuel tank of 85 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £116.28. Diesel costs approximately £120.78 for a full tank.
What is the annual fuel cost for a Mercedes GLE?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Mercedes GLE costs approximately £1841 per year in fuel. At 10,000 miles/year the cost rises to £2488. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Mercedes GLE?
In a Mercedes GLE doing ~25 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 68-litre fill nets approximately £6.05 after the extra fuel cost. You could drive up to 27 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Mercedes GLE cost per mile in fuel?
The Mercedes GLE costs approximately 24.9p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £7.47 per day in fuel.
What is the WLTP MPG figure for the Mercedes GLE?
The official WLTP fuel economy figure for the Mercedes GLE is 29.4 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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