Mercedes-Benz M-Class AMG (2012-2015) running costs and reliability

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Running costs rating: 2 out of 52.0

Written by Gareth Evans Published: 6 June 2019

Miles per pound (mpp)

Reliable fuel consumption data for comparison purposes is not available for this model.

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Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 23 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

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Mercedes-Benz ML63 AMG running costs are substantial. The phrase “If you have to ask, you probably can’t afford it” is a bit clichéd but apt all the same. This isn’t an economical car and it certainly isn’t aimed at saving pandas or rainforests. CO2 emissions are 276g/km so road tax is going to be high and so is company car tax. The fuel economy is a claimed 24mpg on the combined cycle, which represents a 40% improvement over the previous car, but it’s still a galaxy away from what you could call frugal.

On the road we saw closer to 15mpg, but that’s largely due to the addictive exhaust note.

Emitting 276g/km of carbon dioxide, Mercedes-Benz ML63 AMG emissions are pretty high. Not that buyers of such cars are going to care all that much. You don’t go out and buy a car with a stonking great V8 engine and expect the carbon footprint of a honey bee.

Mercedes-Benz ML63 AMG reliability has been fairly impressive over recent years. There were a few niggles with the first version but they were ironed out for the previous model so this latest car should be good.