only 20 mpg?
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Joined: Jun 2010
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From: Cali
01' c320 (sold) / 03' Ford Focus(sold) :( / 98' C230 / 00' SL500 / 11' C300 Sport RWD w204
only 20 mpg?
Whats everyone's experience on their MPG? My daily commute to work is around 20 miles with around 15 miles being freeway. I've done 80 miles so far and I'm below my first notch already. My first 2 fill ups were avg 19-20mpg. I only have 600 miles on my car. Is it because its still in break in period? I've been reading a bunch of mixed ideas about how to break in the car. I baby'd it for the first 300 and then people were saying to vary the rpm a lot so since then I've been just driving the car and sometimes pushing it making sure not to hit 5k rpms. This kinda sucks cus the mpg is pretty much the same as my old C320.
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Joined: Nov 2009
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From: Irvine, CA
2009 C350
Consider 20MPG to be a blessing man. I average 16-17MPG city and only about 23-24 highway. I don't think it's the break in period either. I had about the same during my break in period and since during the break in most people keep the revs pretty low, you should be getting better fuel economy.
Thread Starter
Senior Member
Joined: Jun 2010
Posts: 277
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From: Cali
01' c320 (sold) / 03' Ford Focus(sold) :( / 98' C230 / 00' SL500 / 11' C300 Sport RWD w204
7 years of engineering and this is what we still get... makes me wonder why i didn't just buy a new camaro >.>
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From: Irvine, CA
2009 C350
I feel you man. This is why I'm leaning towards trading in for a GTI or something. 21/31 and it gets BETTER with ECU tuning. In addition to the increased hp/tq from tuning I'd say that's a double whammy there.
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
When are you all going to convince MB USA to bring in diesels ?
I average 6 litres /100 km & 5.3 l/100 km highway, hot day ,A/C on at 115km hr.
I average 6 litres /100 km & 5.3 l/100 km highway, hot day ,A/C on at 115km hr.
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MBWorld Fanatic!
Joined: Nov 2009
Posts: 1,348
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From: Irvine, CA
2009 C350
Mmm maybe. If I find a well equipped 08 or 09. But oddly enough I'm someone who likes/wants 4 doors and honestly I find the e90 to be below average in the looks department. Then again people have their dislikes about hatchbacks too >_>
Member
Joined: Jun 2009
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From: NJ/PA
'09 C300 Sport 4Matic Arctic White
I'm averaging about 23mpg in mixed daily driving. I regularly make 2-4hr trips on the weekends and get up to 31mpg (according to the gauge). That's not bad considering it's AWD and heavy. I can't imagine that the 335xi gets any better gas mileage, the 335i probably does though ...
Senior Member
Joined: Jan 2007
Posts: 353
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From: Wilmington,NC
E63
Those are low numbers
I let one of the trip odometers just run without resetting for the whole time I had my 2008 C350. When it got traded with ~36k miles it said 24.x avg miles per gallon. One time on I-40 in NC between Chappel Hill and Raliegh it said current mileage as high as 34. We were on the interstate at normal speed.
That was a great car- wht, pano, 18" AMG rims, PP2.
That was a great car- wht, pano, 18" AMG rims, PP2.
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Joined: Jan 2009
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From: Southwest USA
Another round of ICE
Mileage varies from automatic trans 4MATICS at the low end to rwd sticks at the high, plus driving style and conditions. I routinely get 21-22 around town and 30 on the highway.
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Joined: Jun 2010
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From: Central Florida
2009 C300 Sport, ex 2007 C230 Sport
Mine gives me around 18-19 city, 20-23 mixed (most of my driving falls in this range; including a daily 12 mile each way drive to work; 8 highway, 4 city), and usually 23-26 highway. Average tank fill gets me 350+, but I'm babying this tank and I might hit close to the 400 mile mark. Last fill took 16+ gallons. So far, I've filled the tank 3 or 4 times since purchase.
Mileage appears to be a wee bit better than my W203, and the tank seems to be bigger as well. The W203 would give me 280-300 miles per tank on average, 320 if I babied it, and close to 350 if I went all highway on a long drive (I only got that much two or three times).
Also, the W204 has cost about 7-10 bucks more per fill compared to the W203. It appears the W204 is marginally better on fuel economy (mpg) than the W203.
For what it's worth: Upon filling the tank on my W203, the range normally displayed was 350 miles; on my W204, the range reads around 420 or 430 (can't remember for sure). I often wonder if that's meant to be MB's expected average from a full tank, or their perceived max.
Hope this was helpful.
Mileage appears to be a wee bit better than my W203, and the tank seems to be bigger as well. The W203 would give me 280-300 miles per tank on average, 320 if I babied it, and close to 350 if I went all highway on a long drive (I only got that much two or three times).
Also, the W204 has cost about 7-10 bucks more per fill compared to the W203. It appears the W204 is marginally better on fuel economy (mpg) than the W203.
For what it's worth: Upon filling the tank on my W203, the range normally displayed was 350 miles; on my W204, the range reads around 420 or 430 (can't remember for sure). I often wonder if that's meant to be MB's expected average from a full tank, or their perceived max.
Hope this was helpful.
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From: Southwest USA
Another round of ICE
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From: Acapulco Mexico
2010 C300 Sport
Here we have the FOOT effect - as there is a great variation in how spiritedly W204 owners drive. MB engines will see an increase in MPG after around 8000 miles of break-in. Have gotten as much as 28 MPG (8.3 L/100 km) on long trips through mountains at high speed (over 90 MPH), so consider this excellent mileage for a C300. From purchase, for 10,000 miles driven (mosty "hard"), the total average is 21 MPG (11.2 L/100 km), although after 8000 miles there has been an increase in efficiency. Before the average was right around 20 MPG. For the last 2000 miles the average has be around 24 MPG.
As for the claims about 3-series efficiency, with two in the family the MPG is no better or worse than the C300. It all depends on your FOOT. Unless I am changing tunes on the iPod, I always leave the display on the fuel computer "from start", as you can monitor the average fuel consumption depending on your driving and the conditions.
As for the claims about 3-series efficiency, with two in the family the MPG is no better or worse than the C300. It all depends on your FOOT. Unless I am changing tunes on the iPod, I always leave the display on the fuel computer "from start", as you can monitor the average fuel consumption depending on your driving and the conditions.
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From: Dix Hills, New York
2012 C250 Coupe
I don't know why you guys are getting such poor mpg (perhaps you are driving very aggressively). But I will say that within the first like 2,000 my mpg's were very low. I now average about 24mpg (20 or so city, 28hwy). I found the best way to get good fuel economy is to use cruise control. Even though I use a light foot and barely ever use the brakes on the highway (even in traffic) I still can't manage to get as good fuel economy as I do when I use cruise control. If I set it to 60mph I average about 32mpg on the highway.
As far as the break in procedure. Mercedes recommends to keep it under 5k rpm for the first 1,000 miles and to be driving at varying RPM's (as in not at a constant RPM for the whole 1,000 miles like highway).
However, there is a big following of people who argue the opposite, and that in order to get proper seal of piston rings and valve-train components, an engine should be put under loads (perhaps not as extreme as WOT, but over 5,000rpm) a few times towards the end of the break in period (750-1000 miles). But who really knows what is right or wrong, there are always two sides to every story.
As far as the break in procedure. Mercedes recommends to keep it under 5k rpm for the first 1,000 miles and to be driving at varying RPM's (as in not at a constant RPM for the whole 1,000 miles like highway).
However, there is a big following of people who argue the opposite, and that in order to get proper seal of piston rings and valve-train components, an engine should be put under loads (perhaps not as extreme as WOT, but over 5,000rpm) a few times towards the end of the break in period (750-1000 miles). But who really knows what is right or wrong, there are always two sides to every story.
