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In-depth reviews

Mercedes GLE SUV - MPG, running costs & CO2

The latest GLE is a step forwards in economy over its predecessor, but will still be costly to run

Carbuyer Rating

3.7 out of 5

Owners Rating

5.0 out of 5

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MPG, running costs & CO2 Rating

3.5 out of 5

Charged with representing Mercedes in the large SUV sector until well into this decade, the GLE has to represent a considerable step forward from its predecessor when it comes to economy and emissions. However, while incremental fuel economy improvements have been made, no Mercedes GLE stands out as being particularly inexpensive to run or maintain. The GLE 350 de plug-in hybrid is the exception, with an official figure of 353.1mpg, but this figure is largely academic unless you regularly keep the battery topped up and only drive short distances. Once the battery is depleted, the fuel consumption figure tumbles and you’re likely to see fuel consumption of 35-40mpg.

Mercedes GLE MPG & CO2

Besides the PHEV, the most economical model in the range is the 2.0-litre, four-cylinder diesel GLE 300 d. Mercedes claims it'll return up to 44.8mpg but also emits more than 170g/km of CO2 when 20-inch alloy wheels are fitted, putting it in the highest BiK band. The GLE 400 d uses a 3.0-litre, six-cylinder diesel engine and is capable of 35.8mpg. The lower-powered GLE is slightly more economical, but a little slower, than the entry-level BMW X5 diesel, but the X5 xDrive40d is more frugal than the GLE 400 d.

The powerful GLE 450 petrol may have mild-hybrid assistance, but shouldn't be mistaken for any environmental champion. It manages up to 28mpg and emits 229g/km of CO2, while the high-powered AMG 53 is even more thirsty at 26mpg - although this is competitive with performance SUV rivals. Right at the pinnacle of the range, the more powerful AMG model returns just 22.8mpg.

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Those who can claim a Mercedes GLE as a company car will be best off choosing the GLE 350 de plug-in hybrid. Its P11D value is similar to other models in the line-up and its Benefit-in-Kind (BiK) tax liability is just 8%, compared to the highest 37% band for every other engine.

With prices that start considerably in excess of £40,000, every GLE will cost over £500 per year in road tax until the sixth occasion that your annual road fund licence needs renewing, whereupon it will drop to the standard rate per year.

Insurance

As a big, expensive and relatively powerful SUV, no GLE is likely to have you celebrating cheap insurance quotes. Even the entry-level GLE 300 d diesel has been rated group 44 for insurance by the Association of British Insurers (ABI). The petrol-fuelled GLE 450, meanwhile, is rated in group 47. The six-cylinder diesels occupy groups 47 and 48, but we always recommend you seek a quote before buying a new car.

Servicing

Mercedes maintenance doesn't come cheap, but at least the company's fixed-price system makes it easy to know just how big your next service will set you back. Service contracts are available, which will cover you for two, three or four services; intervals are yearly or at every 15,500 miles, whichever occurs first. It's worth noting that Mercedes' ‘Emergency Service’ recovery is provided for as long as your car is maintained by the Mercedes dealer network.

While a 'minor' oil change service isn't hugely expensive, beware that wear-and-tear items such as tyres and brakes will be very costly on a large SUV like the Mercedes GLE.

Warranty

Every Mercedes sold in the UK comes with a three-year/unlimited mileage warranty. When it expires, you can pay for an extended warranty, but beware that it carries certain exclusions, such as failure of seals or electrical wiring.

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