How is your C300 4MATIC's gas milage??
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C300
How is your C300 4MATIC's gas milage??
I have C300 4Matic. After I read a thread saying that C350 made max 30+MPG on flat highway with constant speed of 70mph, I had to test my car. I set cruse control at 70mph on flat highway for 20 mins. Of course, I reset my mpg trip computer as soon as I set the cruse at 70mph.
The result? dissapointment.
24mpg at avg speed 70mph for distance 20 mils.
What's up with that???
My C300 4Matic has not done with break in yet. Still 200 more miles to go.
But, still it's close to break-in and should have decent mpg.
Prior to the test, my avg mpg was reporting at about 18mpg. I guess I cannot complain since MB advertised mpg as 17/23 for C300. But, still I would expect more when C350 has max 30+mpg for same test. Maybe it is because of 4Mactic? (heavier, bigger rear differential gear ratio than rear wheel drive C300 and C350)
Will it differ after 1000miles? At 1000mil dealer check up, will they adjust something that helps better gas milage?
How is your 4Matic's gas milage?
The result? dissapointment.
24mpg at avg speed 70mph for distance 20 mils.
What's up with that???
My C300 4Matic has not done with break in yet. Still 200 more miles to go.
But, still it's close to break-in and should have decent mpg.
Prior to the test, my avg mpg was reporting at about 18mpg. I guess I cannot complain since MB advertised mpg as 17/23 for C300. But, still I would expect more when C350 has max 30+mpg for same test. Maybe it is because of 4Mactic? (heavier, bigger rear differential gear ratio than rear wheel drive C300 and C350)
Will it differ after 1000miles? At 1000mil dealer check up, will they adjust something that helps better gas milage?
How is your 4Matic's gas milage?
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From: Northern NJ
C3004Matic Sport, Blk on Blk, Pano, P1, MMC, Ipod
poor
Mine is down near 16, but I've had too few miles on it, only around 400, to say with any certainty. Plus, a lot of my avg. gas mileage was due to idling while reading the manual or flirting with the controls as I'm learning the car. Still, in anye vent, the 4matic will be worse than non-4matic due to its portly weight (~3800 pounds) and 4 matic tranny. AWD vehciles have the worst loss of power between the crank and the wheels than of either a fwd or rwd vehicle. Still, if the c350 is getting 30 mpg on the highway, I'd think we should get 27 or 28, and at least above 25!
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From: Kirkland, WA
c300
Not 4matic, but I've only seen 28mpg max in level cruising with my 300.
There are times when a bigger motor is more efficient. It's got more torque lower in the rpm range so it can sit in a higher gear under low rpm/load at freeway cruise speeds.
I had an 01 Audi A8L with a 4.2 V8. At 70-75mph, level or not, I averaged over 32mpg freeway. But it was barely ticking over idle in top gear. Plus I don't think it weighted a whole lot more than the C believe it or not. Cars are getting piggy piggy oink fat.
PS. If I hit any hills I'm right down into 26-27mpg range with the 300.
There are times when a bigger motor is more efficient. It's got more torque lower in the rpm range so it can sit in a higher gear under low rpm/load at freeway cruise speeds.
I had an 01 Audi A8L with a 4.2 V8. At 70-75mph, level or not, I averaged over 32mpg freeway. But it was barely ticking over idle in top gear. Plus I don't think it weighted a whole lot more than the C believe it or not. Cars are getting piggy piggy oink fat.
PS. If I hit any hills I'm right down into 26-27mpg range with the 300.
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C300
I guess bigger engine and a difference of rear Axle ratio makes the C350 the winner for the gas mileage.
According to the MB C class spec.
Rear Axle Ratio
C300 Luxury and Sport = 3.07:1
C300 4MATIC Luxury and Sport = 3.27:1
C350 Sport = 2.82:1
Well, the mpg of my C300 4Matic is not much better than my 4800 pound 2006 Pacifica All wheel drive. I get 15-16 mpg average driving around the town with that car. and I thought it was bad..
Wire thing is that my Pacifica has 3.5L engine that produce excatly same hp and torque as C350 engine does. Maybe they are the same engine?? 
I remember that the 3.5L pacifica engine was the most powerful V6 engine that Chrysler ever made for production car in 2005 or 2004... hmm.. I'm not sure exactly when though...
According to the MB C class spec.
Rear Axle Ratio
C300 Luxury and Sport = 3.07:1
C300 4MATIC Luxury and Sport = 3.27:1
C350 Sport = 2.82:1
Well, the mpg of my C300 4Matic is not much better than my 4800 pound 2006 Pacifica All wheel drive. I get 15-16 mpg average driving around the town with that car. and I thought it was bad..
Wire thing is that my Pacifica has 3.5L engine that produce excatly same hp and torque as C350 engine does. Maybe they are the same engine?? I remember that the 3.5L pacifica engine was the most powerful V6 engine that Chrysler ever made for production car in 2005 or 2004... hmm.. I'm not sure exactly when though...
Last edited by kimyoung_k; Dec 5, 2007 at 10:49 PM.
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From: Northern NJ
C3004Matic Sport, Blk on Blk, Pano, P1, MMC, Ipod
now that's a freightening thought!
The pacifica is the unholy mother of the c350? Wow, Daimler won't live down this chrysler thing for a long, long time.
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C300
My guess is since Diamler engineer designed pacifica, not by Chrysler engineer, they might have given to Chrylser the same blue print of Mercedes 3.5L engine and have them to build with cheaper parts at chrysler plan in US or Canada. Actually, besides the engine, Pacifica shares a few of same designs that were done for Mercedes.
P.S.
Chrylser dropped the 3.5L engine for all 2007 Pacifica and I believe entire line of Pacifica model has been dropped since the seperation from Diamler.
But I believe Chrysler 300M still uses the same 3.5L engine
Last edited by kimyoung_k; Dec 5, 2007 at 11:03 PM.
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The Chrysler and MB V6s are not at all related. I'm pretty sure the Chrysler is a 60-degree V, and the MB is a 90-degree V. Also, the Chrysler is SOHC, the MB is DOHC.
My site has a real-world fuel economy survey that is more sophisticated than most. I don't know if I have any results for the 2008 C-Class yet. But feel free to join and post some:
Real-world fuel economy survey
My site has a real-world fuel economy survey that is more sophisticated than most. I don't know if I have any results for the 2008 C-Class yet. But feel free to join and post some:
Real-world fuel economy survey
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From: Hawaii
2005 Volvo S40 T5 AWD, 2004.5 C230 Sport Sedan, 2005 E320 CDI, 2008 C300 4-Matic Luxury
just got through the 1st tank today. ended up with ~17.8 mpg average...
i expect mpg numbers to go up once winter passes, snow always kills fuel economy.
i expect mpg numbers to go up once winter passes, snow always kills fuel economy.
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Thread Starter
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C300
The Chrysler and MB V6s are not at all related. I'm pretty sure the Chrysler is a 60-degree V, and the MB is a 90-degree V. Also, the Chrysler is SOHC, the MB is DOHC.
My site has a real-world fuel economy survey that is more sophisticated than most. I don't know if I have any results for the 2008 C-Class yet. But feel free to join and post some:
Real-world fuel economy survey
My site has a real-world fuel economy survey that is more sophisticated than most. I don't know if I have any results for the 2008 C-Class yet. But feel free to join and post some:
Real-world fuel economy survey
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C300 4Matic
Yes, thats is true. Cars tend to get better mileage in the summer compared to winter season.
I'm not quite sure what is the effect, maybe because of the lower temperature (more oxygen packed together) result in a better combustion?
Just thought of it from what i've learned in chemistry class long time ago. 
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From: North Jerzeee
Lexus IS 350 F Sport
5200 miles here and im in the high teens with MPG. I dont have a heavy foot and im about 50/50 on city/hwy miles as well. I would think during the winter mpg goes down since im always heating up the car before driving away but then again during the summer we got the a/c on so i would think its a tradeoff ?? Anyways im not too upset about the MPG since i didnt purchase the car for its high mpg
?? Anyways im not too upset about the MPG since i didnt purchase the car for its high mpg
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From: Nebraska
C300 4Matic Sport, P1, iPod
I've got about 300 miles on my C300 4Matic and have averaged about 18.5 with mostly city driving. We keep it on comfort mode 95% of the time and have not been letting it idle at all.
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C230 K coupe Orion blue, Evo, prem leather roof, premium sound and cd changer, auto.
Why doesn't MB offer a Bluetec® engine for the C's in Canada and USA? I would rather have one of those than a gas guzzling 3 L or 3.5 L V6 gas engine in the 4Matic.
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From: Colorado
05 E500 4matic, 08 ML320CDI
to reduce smog. It negatively effects gas mileage and performance to some extent. Summer blended fuels here don't have Ethanol and thus MPG's are a little better... You may have a similar situation where you live if they have Winter and Summer blends of fuel.... The Ethanol content of your gasoline should be clearly marked somewhere on the gas pumps if your fuel has it...
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2011 E350 Sport 4matic
In Colorado, and most of the Rockies, Winter blend gasoline has 10% Ethanol
to reduce smog. It negatively effects gas mileage and performance to some extent. Summer blended fuels here don't have Ethanol and thus MPG's are a little better... You may have a similar situation where you live if they have Winter and Summer blends of fuel.... The Ethanol content of your gasoline should be clearly marked somewhere on the gas pumps if your fuel has it...
to reduce smog. It negatively effects gas mileage and performance to some extent. Summer blended fuels here don't have Ethanol and thus MPG's are a little better... You may have a similar situation where you live if they have Winter and Summer blends of fuel.... The Ethanol content of your gasoline should be clearly marked somewhere on the gas pumps if your fuel has it...
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From: Northern NJ
C3004Matic Sport, Blk on Blk, Pano, P1, MMC, Ipod
update....
my mileage still sucks. 18.4 mpg for avg spd of 31 mph, pretty much tank after tank, or at least the past 4 I've monitored. I'm up just past 2000 miles now.
Seeing the discrepency b/w 4matics and rwd on this baord, it would appear Merc has a lot, I mean a lot, of learning on a proper awd system that doesn't waste like 70% or 80% of the power. I'm exaggerating of course, but the loss of power through their 4matic system is the only explanation b/w the two (okay, that and the extra weight, but I lump that in with the inefficiency of the 4matic system).
Curtiss
Seeing the discrepency b/w 4matics and rwd on this baord, it would appear Merc has a lot, I mean a lot, of learning on a proper awd system that doesn't waste like 70% or 80% of the power. I'm exaggerating of course, but the loss of power through their 4matic system is the only explanation b/w the two (okay, that and the extra weight, but I lump that in with the inefficiency of the 4matic system).
Curtiss
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Joined: Jan 2008
Posts: 221
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2011 E350 Sport 4matic
my mileage still sucks. 18.4 mpg for avg spd of 31 mph, pretty much tank after tank, or at least the past 4 I've monitored. I'm up just past 2000 miles now.
Seeing the discrepency b/w 4matics and rwd on this baord, it would appear Merc has a lot, I mean a lot, of learning on a proper awd system that doesn't waste like 70% or 80% of the power. I'm exaggerating of course, but the loss of power through their 4matic system is the only explanation b/w the two (okay, that and the extra weight, but I lump that in with the inefficiency of the 4matic system).
Curtiss
Seeing the discrepency b/w 4matics and rwd on this baord, it would appear Merc has a lot, I mean a lot, of learning on a proper awd system that doesn't waste like 70% or 80% of the power. I'm exaggerating of course, but the loss of power through their 4matic system is the only explanation b/w the two (okay, that and the extra weight, but I lump that in with the inefficiency of the 4matic system).
Curtiss
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Posts: 221
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2011 E350 Sport 4matic
FYI. Our new C300 Sport 4matic is still in Germany awaiting shipment our way. But our dealer was so kind as to loan us a 2007 C280 4matic to use until our new car arrives. Everything I have heard suggests the new model should get slightly better MPG than the 2007. Today we drove about 160 miles round trip from our home. Mostly interstate miles cruising at 75-80, but also some slow going side trips between stores and restaurants. Total average for the day turned out to be 29.8 MPG. I don't consider that too bad. And I expect our 2008 to do about one MPG better. (Altitude does help. We live at 8500ft, but our trip took us "down" to Denver (5280ft elevation) and back.
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From: Richmond Hill, Ontario, Canada
MB 2008 C300 sport, 2008 Rally blue Subaru Impreza 2.5 SI 1995 MB C280 W202
I wondered why since VW have Jetta or Golf (Rabbit in Canada next year ) with diesel engine.
So...MB Canada told me..most luxury buyer tend to avoid Diesel. I love diesel especially bluetech engine given that one of my neighbour have one in E class.
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From: NY
88 560sl, 08 c350
just let the car break in. if your only at lets say 1500 miles, dont expect a great mpg. once my car hit 2500 miles, i saw the mpg odometer significantly increase. and i only expect it to get better unless of course, a few bimmers there and there pull up next to me....
