Gas Mileage Consumption
I drive the C300 4MATIC, on an average I get about 460km per tank which is roughly equal to 290 miles until the Gas station pump lights up on the dash. So without calculating the reserve that should be 58 Litres or 15.3 gallons.
From the numbers I get around 19 mpg per tank on average for several tanks now. That seems a bit low for my C300 4MATIC.
I'm wondering what everyone else is getting over there.
Oh, and my car mileage is approximately 18xx miles so far.
Sorry for the repost if there is already one covered. I searched and couldn't find one in the w204 forum.
-Ryan
I drive the C300 4MATIC, on an average I get about 460km per tank which is roughly equal to 290 miles until the Gas station pump lights up on the dash. So without calculating the reserve that should be 58 Litres or 15.3 gallons.
From the numbers I get around 19 mpg per tank on average for several tanks now. That seems a bit low for my C300 4MATIC.
I'm wondering what everyone else is getting over there.
Oh, and my car mileage is approximately 18xx miles so far.
Sorry for the repost if there is already one covered. I searched and couldn't find one in the w204 forum.

There was a thread already discussed on this forum about fuel consumption.
my mpg is about 19
My wife's Honda Pilot gets better gas mileage.
It has awd and a 6cyl also, probably weighs about the same (approaching 4000 pounds) but is way bigger and less aerodynamic. So what gives.
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I've seen a low of about 19 mpg, with low temps and mostly city driving.
I've seen a high of 28 mpg, with warm weather and mostly freeway driving.
In the past couple of months, with very spare usage [only a couple of hundred miles a month] doing normal suburban errand-running [average trip length 15-25 miles roundtrip], we've been averaging 20-21 mpg.
All this compares favorably with our '02 C240, which had 60 fewer hp and shorter gearing. More power, same or less fuel consumption....no complaints here.
And FYI, in many areas there are three and only three kinds of gasoline - 87, 89, and 92-93 octane. That help?
On my trip to work I have been trying to see just how good I can get it. My trip is 22 miles and the best I have done so far was 26.7 mpg for the trip. How many times you have to excelerate from a stop seems to be the biggest driver that drives down the mpg.
I don't quite (yet) understand how the trip computer is working. It starts at about 19.7 or so for city driving. Once I reach the freeway, it continues to climb until reaching the max (as above). I haven't yet tried a long trip, so I don't know what 200 miles will do to it. What bothers me is how fast it drops once leaving the freeway. In about 1 mile (hill included and a stop light or two), it can drop from 28.2 down to 27.0. ??
(Weather here is "cold/cool", in the 30s and 40s, and we're using that winter-time gas with fake ingredients ;-)
currently at 1300milesHighest mpg I have ever seen with my car in high way with cruse control at 70mph was 24mpg
Last edited by kimyoung_k; Feb 5, 2008 at 01:09 PM.
My guess is that the MPG figures quoted by MB are based on High Octane fuel. Bearing in mind that lower octane fuel returns lower MPG figures.
I currently use Shell V-Power 99 Ron in the UK. With just over 2K miles on the clock, I get 21.9 in town and 29 on the motorway (freeway)
Last edited by Uga Uga; Feb 5, 2008 at 04:29 PM.
I thought I was the only one getting gas mileage on the low side.
I hope our cars gas consumption improves as the car breaks in more.

Oh yah, my driving style was 70% highway driving with a non heavy foot. My average speed is around 70mph.
and i dont even have a heavy foot ??!! Best ive seen was a drive of about 180 miles going 60 mph in which i got 24 mpg !!
For anyone interested:
( RON Octane Rating x 0.95 = AKI Octane Rating )
98 RON Octane x 0.95 = 93.1 AKI Octane (US measure)
100 RON Octane x 0.95 = 95 AKI Octane (US measure)
the most i've ever gotten is something like 28.7mpg cruising between 70-80mph on the freeway for a good 30 minutes, after resetting the meter once cruising speed was achieved.







A full tank of gas might get us 60 miles total.