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Changes in MPG

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Old Jan 13, 2016 | 08:03 AM
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Mercedes E350 CD Iridium silver convertible 2010
Changes in MPG

Since I had my last service with my Mercedes dealer my MPG has dropped by about 5mpg. My driving style and the roads I travel on have not changed.

I do have a 3.0ltr diesel engine and am wondering if following the emissions scandal with Volkswagen, are Mercedes quietly making changes without telling customers what they are doing???
I am aware that nearly all agree that to pass the emissions tests the changes that MPG will have to reduce, but that this only applied to VAG cars.

The whole point of buying a diesel is better MPG, as the costs of owning one are significantly higher than the petrol equivalent!!!!
Anyone else have any experience????
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Old Jan 13, 2016 | 12:09 PM
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Aw man I hope that's not the case. I recently received a tune from OE Tuning on my 550, and my MPG actually improved by about 3-4 MPG!
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Old Jan 13, 2016 | 12:20 PM
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My MPG also improved after an OE Tuning ECU Tune!


Originally Posted by SnakeDoctor
Aw man I hope that's not the case. I recently received a tune from OE Tuning on my 550, and my MPG actually improved by about 3-4 MPG!
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Old Jan 13, 2016 | 12:49 PM
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I think it only affects diesel models !!!!
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Old Jan 13, 2016 | 04:15 PM
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Originally Posted by theraven333
I think it only affects diesel models !!!!
Yes, it is ONLY diesel models. Also VW and MB use completely different technology to achieve their EPA compliant solutions for their respective diesel vehicles. No one with a gasoline engine should be concerned by what is going at VW.

What I would be concerned with, if I was a owner of any diesel vehicle in general as a result of the VW scandal, is the EPA or some other U.S. or E.U. agency deciding to slap more stringent pollution control requirements on future diesel vehicles. That's about it.

To OP, what service did you have performed and did you go back to MB to report the noticeable change in MPG?
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Old Jul 24, 2021 | 06:59 AM
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Originally Posted by PaulE550
Yes, it is ONLY diesel models. Also VW and MB use completely different technology to achieve their EPA compliant solutions for their respective diesel vehicles. No one with a gasoline engine should be concerned by what is going at VW.

What I would be concerned with, if I was a owner of any diesel vehicle in general as a result of the VW scandal, is the EPA or some other U.S. or E.U. agency deciding to slap more stringent pollution control requirements on future diesel vehicles. That's about it.

To OP, what service did you have performed and did you go back to MB to report the noticeable change in MPG?
They replaced many sensors and reflash the PCM
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Old Jul 24, 2021 | 10:02 AM
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Thanks for the reply, but the post you are replying to is 5 1/2 years old.
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