M-Class (W166) Produced 2012-2015

Low mpg ML350 2013

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Old May 6, 2017 | 03:05 AM
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Codeblack's Avatar
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2013 W166 ML350 4Matic V6 Gas
Exclamation Low mpg ML350 2013

Hey guys. I am having trouble with my 2013 ML. I just got her a few months ago so I don't know how she was driving beforehand. For the few months I got her I've notice I am only getting around 11-12 mpg in the city! So ****ty. I'm taking her to the dealer for diagnostics.

Anybody have any expiernce with such low MPG?

Oh btw I recently reset the ECU using the key method, didn't much of a difference.
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Old May 6, 2017 | 12:38 PM
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Depending on driving style, temperature and frequency of stops, 11-12 mpg isn't that unusual. Here in Ann Arbor, lights are timed so that you hit many reds even on the major roads with light traffic. Frequent starts and stops absolutely hammer your fuel efficiency. I've taken to switching my engine off in lieu of having start-stop, which saves quite a bit of gas because the reds are also quite long in duration. Adds about 3mpg and this isn't 1995, so your starter will be fine.
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Old May 6, 2017 | 12:53 PM
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2013 W166 ML350 4Matic V6 Gas
Going in for Fuel injection service.... let's see if it helps.

Last edited by Codeblack; May 6, 2017 at 12:57 PM. Reason: Forgot to quote
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Old May 6, 2017 | 12:55 PM
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2013 W166 ML350 4Matic V6 Gas
Originally Posted by sadpanda
Depending on driving style, temperature and frequency of stops, 11-12 mpg isn't that unusual. Here in Ann Arbor, lights are timed so that you hit many reds even on the major roads with light traffic. Frequent starts and stops absolutely hammer your fuel efficiency. I've taken to switching my engine off in lieu of having start-stop, which saves quite a bit of gas because the reds are also quite long in duration. Adds about 3mpg and this isn't 1995, so your starter will be fine.
Thanks for the reassurance. I just spoke with an amazing service rep from the Helms Brothers Mercedes and he told me the same thing. I'm skipping the overnight diagnostics and opting in for a fuel injection service $220 to see how that goes. I don't know how the previous owner took care of the car so let's see if it helps.
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