M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

MPG expectations

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Old Aug 9, 2020 | 10:51 AM
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relinuca's Avatar
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2009 E350 4Matic Sport sedan
MPG expectations

I'm considering buying a used M-B SUV, probably a ML 350 or a newer GL 350. I consistently get 26-27 mpg on the hwy when using a steady foot and running 70 mph in my '09 E 350. But what should I expect in mpg with a slightly heavier SUV? under similar driving conditions. (I realize M-Bs are not economy cars, but respectable gas mileage should be attainable.)

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Old Aug 9, 2020 | 11:28 AM
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2017 GLE350 4MATIC
Originally Posted by relinuca
I'm considering buying a used M-B SUV, probably a ML 350 or a newer GL 350. I consistently get 26-27 mpg on the hwy when using a steady foot and running 70 mph in my '09 E 350. But what should I expect in mpg with a slightly heavier SUV? under similar driving conditions. (I realize M-Bs are not economy cars, but respectable gas mileage should be attainable.)

relinuca
@relinuca Gas or diesel? Gasoline MBs do not deliver good fuel economy in my experience. 22.5mpg on the highway is the best I have done with a 3.5L non turbo M276 V6 in a GLE350. The M272 3.5L non turbo gasoline engine will be in the same ballpark.

Last edited by chassis; Aug 10, 2020 at 08:37 AM.
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Old Aug 10, 2020 | 08:21 AM
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Mercedes R320L CDI 4MATIC 2007
My R320cdi diesel 4 matic, on motorway reaches up to 43mpg. In town just somewhere 21-27mpg.
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