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Mercedes GLE (2015-2019) review - MPG, CO2 and Running Costs

GLE is relatively thirsty, but plug-in hybrid model helps cut costs

Compared to the entry-level BMW X5, the GLE 250d is just as efficient, returning 47.9mpg combined with 155g/km CO2, but it’s down on power significantly as the BMW boasts a 258bhp 3.0-litre diesel. The 350d isn’t as frugal as its X5 equivalent, the xDrive 30d, with on-paper fuel economy of 42.8mpg combined and 174g/km CO2. 

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The hybrid GLE 500e’s 78g/km CO2 total (84g/km on the smaller wheels) is impressive, but you’ll unlikely to hit the 76.4mpg quoted figure under real-world driving conditions unless you religiousl plug it in to charge it up.

We’d also recommend taking the AMG 63 model’s 23.9mpg predicted economy with a pinch of salt – weighing 2,345kg there’s a lot of mass the V8 has to move, so high teens would be a fair assessment. The 276g/km CO2 output means it’ll cost a lot for company car users to run.

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