View Poll Results: how much do you spend on gas for your car per month?
less than $25
1
1.61%
$25 to $50
16
25.81%
$51 to $75
9
14.52%
$76 to $100
20
32.26%
more than $100
16
25.81%
Voters: 62. You may not vote on this poll
The C-Class GAS MILEAGE thread
Member
Joined: Sep 2004
Posts: 172
Likes: 0
From: Orlando, Fl
My gas sipping C-Class
I try to always use my cruise control, but I-95 always has some jack-*** doing 70 in the fast lane.....Once I hit the 520, off of 95, I set my cruise at 65mph.....It's usually set at 75mph on I-95
Member
Joined: Feb 2007
Posts: 180
Likes: 0
From: Long Beach, CA
'02 C230K Coupe
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MBWorld Fanatic!
Joined: Mar 2006
Posts: 2,090
Likes: 11
From: SF Bay Area, CA
2006 E55 and 2002 E320
I've seen mine hit over 40 mpg. Have pics on the cell phone, but not clever enough to transfer them over to the computer.
From Pleasanton, CA to Newport Beach, CA.
387 mi
6:41 h
58 Mph
37.4 mpg
Another case
April 1, 2007 (April Fool's Day)
92 mi
1:33 h
59 Mph
42.6 mpg
Once again, I must stress, these computers aren't very accurate and usually overestimate the fuel economy.
If you'd like to continue seeing such superlative fuel economy, please write MBUSA letters stating you hope they continue to import the four cylinder models to the United States.
From Pleasanton, CA to Newport Beach, CA.
387 mi
6:41 h
58 Mph
37.4 mpg
Another case
April 1, 2007 (April Fool's Day)
92 mi
1:33 h
59 Mph
42.6 mpg
Once again, I must stress, these computers aren't very accurate and usually overestimate the fuel economy.
If you'd like to continue seeing such superlative fuel economy, please write MBUSA letters stating you hope they continue to import the four cylinder models to the United States.
MBWorld Fanatic!
Joined: Oct 2004
Posts: 1,238
Likes: 0
From: Long Island, New York
'05 C230SS 6MT, 1966 Triumph TR4a IRS, Shelby Cobra 427 Supercharged
Woah! There are other people that live near the hell hole I call Melboring! I thought I was the only jackass who lives here...
PS... that took a little longer to type, just got back from a party in Palm Bay! Just a whole lot of
and 
, 
, 
, 
and then the 
lol! Last time I let my friends convince me to go there!
But anyways, back to the topic... Thats pretty good, the best I've gotten was around 35 hwy. But then again whenever I'm on the highway for long enough I usually have the car loaded with people or all my stuff... One night I got 29 city with extremely conservative driving and luckily no traffic.
PS... that took a little longer to type, just got back from a party in Palm Bay! Just a whole lot of
and , , , and then the lol! Last time I let my friends convince me to go there!But anyways, back to the topic... Thats pretty good, the best I've gotten was around 35 hwy. But then again whenever I'm on the highway for long enough I usually have the car loaded with people or all my stuff... One night I got 29 city with extremely conservative driving and luckily no traffic.
Last edited by Capt Nemo o2; Sep 23, 2007 at 10:57 AM.
Banned
Joined: Sep 2007
Posts: 503
Likes: 1
From: Bay Area
'05 c230 Kompressor Sport Sedan
Madmax32, I get about the same as you.
Some of you guys are getting highway miles of 27mpg or so. So you thnk it could be the mods that make it a bit slower? I was thinking of putting on spoiler (front and back), but now i'm concerned about gas mileage change.
My friend's civic loses 2mpg after installing a roof rack. I believe my hood wind deflector makes my Rav4 lose a few mpg too. Am I crazy, or do you guys think that could actually effect it too?
SCOTTISHA: Nope, can't beat that. that's crazy. I'm at 32.5 or so at most. Wow, you must have had a lot of tail wind.
Some of you guys are getting highway miles of 27mpg or so. So you thnk it could be the mods that make it a bit slower? I was thinking of putting on spoiler (front and back), but now i'm concerned about gas mileage change.
My friend's civic loses 2mpg after installing a roof rack. I believe my hood wind deflector makes my Rav4 lose a few mpg too. Am I crazy, or do you guys think that could actually effect it too?
SCOTTISHA: Nope, can't beat that. that's crazy. I'm at 32.5 or so at most. Wow, you must have had a lot of tail wind.
Senior Member
Joined: Sep 2007
Posts: 399
Likes: 0
From: NorCal
'02 CL203 M111
that's huge !! is my car too bad or what? Mine never went over 32MG 
so sad ... poor girl....who got recently
by behind by the way(so sad... but yayyhh time to get an OEM rear bumper )
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,265
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
I'm getting occasional misfires, sputtering and almost what seems like the occasional backfire. Generally not enough to set a CEL but it did once.
This after replacing the Cat, which was clogged.
I'm at 113K now, with original 02 sensors,
but everything else is good. (As in plugs, fuel filter, coil packs, cat, and MAF have all been replaced fairly recently, which leaves 02 sensor,
and possibly clogged injectors.)
MB doesn't seem to like people putting injector cleaner in the
car, but at some point, you kinda have to.
Is there certain types of cleaner that are ok, and others that are not?
Why slick 50? I saw a post with and MB "approved" additive, but
it was like 15 bucks...and likely it's just Kerosene or Alchohol, no?
Whats so special that you can't use additives in a benz?
Whats hose under the intake are you referring to McKay?
Are you on M111? I think I know the piece you're referring to, but
a pic would be great.
I had all of that apart when I did the header, so I might have mucked things up a bit.
I'm going to hook up my OBD live data scanner, check my fuel trim, and
leave it running....see if it detects any misfire that might not be enough to trigger a CEL.
This after replacing the Cat, which was clogged.
I'm at 113K now, with original 02 sensors,
but everything else is good. (As in plugs, fuel filter, coil packs, cat, and MAF have all been replaced fairly recently, which leaves 02 sensor,
and possibly clogged injectors.)
MB doesn't seem to like people putting injector cleaner in the
car, but at some point, you kinda have to.
Is there certain types of cleaner that are ok, and others that are not?
Why slick 50? I saw a post with and MB "approved" additive, but
it was like 15 bucks...and likely it's just Kerosene or Alchohol, no?
Whats so special that you can't use additives in a benz?
Whats hose under the intake are you referring to McKay?
Are you on M111? I think I know the piece you're referring to, but
a pic would be great.
I had all of that apart when I did the header, so I might have mucked things up a bit.
I'm going to hook up my OBD live data scanner, check my fuel trim, and
leave it running....see if it detects any misfire that might not be enough to trigger a CEL.
Member
Joined: Sep 2004
Posts: 172
Likes: 0
From: Orlando, Fl
My gas sipping C-Class
That mileage was achieved with clever placement of my vehicle behind others, as to take advantage of their draft... I was not "tailgating", just staying close enough to reduce the drag on my car....
If I have little wind and no help from other cars, I can still average 35.5 to 36 mpg.......It's just hard to get that kind of mileage out of the whole tank of gas....
Maybe we should have a mileage challenge.
Who can get the best mpg, per class (C230, C320, C32, etc..) after going 400 miles
Have a deadline of October 15th and see who can submit the best mileage (with picture) .
It can be a 2 part competition:
1....best MPG
2....most miles per tank, with no cheating....
I know it seems impossible not to win one, if you win the other, but it may also depend on when you fill up.....
If I have little wind and no help from other cars, I can still average 35.5 to 36 mpg.......It's just hard to get that kind of mileage out of the whole tank of gas....
Maybe we should have a mileage challenge.
Who can get the best mpg, per class (C230, C320, C32, etc..) after going 400 miles
Have a deadline of October 15th and see who can submit the best mileage (with picture) .
It can be a 2 part competition:
1....best MPG
2....most miles per tank, with no cheating....
I know it seems impossible not to win one, if you win the other, but it may also depend on when you fill up.....
Member
Joined: Aug 2004
Posts: 223
Likes: 0
From: little ferry nj
08 Silver Lexus IS250 (manual),73 air cooled super beetle-- black 2004 230 ss is gone
Going the speed limit on Route 80 in Joisey,from exit 19 to 66, the readout on my 04 SS,6 speed, read 39.9. But everybody knows driving that slow on route 80 is taking your life in your hands. I was following my nephew who was towing his race car.
MBWorld Fanatic!
Joined: Dec 2005
Posts: 1,055
Likes: 50
From: SoCal. Desert
'16 E350, gone: '03 c230k
Ogpogo, I'm guessing you're driving in 'C' mode? I've found that 'S' mode gets better gas mileage in town (you can coast to stop signs, etc.). I rarely get to take mine on the highway, but the best I've got is ~32-33 mpg. Now I'm wondering if 'C' mode does better on the highway ... ?
I have an '03 C230k sport sedan w/automatic. I'm getting a solid 23-24mpg during small town driving (i.e. lots of stop signs/lights), calculated with miles driven/gallons filled, not by the computer. The computer says I get ~1.5mpg higher than I calculate.
Also, for those getting poorer gas mileage, check you tire pressure. makes a difference for sure. Also, roof racks/wind deflectors make a difference too. On my truck, I went from the stock Goodyear dual-purpose tires to BFG all-terrains and propmtly lost 2mpg (but I needed better off-road tires for what I use the truck for). My wife driving the 230 also drops mileage down to ~21mpg .
I have an '03 C230k sport sedan w/automatic. I'm getting a solid 23-24mpg during small town driving (i.e. lots of stop signs/lights), calculated with miles driven/gallons filled, not by the computer. The computer says I get ~1.5mpg higher than I calculate.
Also, for those getting poorer gas mileage, check you tire pressure. makes a difference for sure. Also, roof racks/wind deflectors make a difference too. On my truck, I went from the stock Goodyear dual-purpose tires to BFG all-terrains and propmtly lost 2mpg (but I needed better off-road tires for what I use the truck for). My wife driving the 230 also drops mileage down to ~21mpg
.
Super Member
Joined: May 2006
Posts: 546
Likes: 10
From: Cumberland, RI U.S.A.
2005 C230WZ SS Capri Blue/Ash
I was just thinking about starting a thread like this. I even took some pics of my center display (but haven't d'loaded them to the computer yet). I ended up going to the somewhat OK Mercedes C-Drive event in NJ a few weeks ago. Also gave me an opportunity to visit a best friend of mine who also came to the event. And it also gave an opportunity to see how well my fuel economy was coming back to RI at night.
Truthfully....I kinda drove like a grandma, but did keep it around 70-75mph all the way. Solo, no one else in the car. No stops. 270 miles, driving from about 8:00pm until about 12:30 am. Took the Garden State Parkway from exit 91 thru the Tappan Zee Bridge, to 287, to the Merritt Parkway (which is pretty uphill going back East), to 95 into RI.
The best I could muster was 34.4 mpg. But.....on a drive I took from RI to NYC to see the NY Auto Show back in April, I got 36.7mpg, with 2 of us in the car (each about 150 lbs). But it was raining really hard, so I was going less than 65 most of the way.
My car: 2005 C230 WZ Sedan with 5-speed auto, about 23K on the odo, wearing summer Michelin Pilot Primacy rubber, and tire pressure bumped up about 4psi higher than recommended on the placard.
Cintoman
Truthfully....I kinda drove like a grandma, but did keep it around 70-75mph all the way. Solo, no one else in the car. No stops. 270 miles, driving from about 8:00pm until about 12:30 am. Took the Garden State Parkway from exit 91 thru the Tappan Zee Bridge, to 287, to the Merritt Parkway (which is pretty uphill going back East), to 95 into RI.
The best I could muster was 34.4 mpg. But.....on a drive I took from RI to NYC to see the NY Auto Show back in April, I got 36.7mpg, with 2 of us in the car (each about 150 lbs). But it was raining really hard, so I was going less than 65 most of the way.
My car: 2005 C230 WZ Sedan with 5-speed auto, about 23K on the odo, wearing summer Michelin Pilot Primacy rubber, and tire pressure bumped up about 4psi higher than recommended on the placard.
Cintoman
Super Member
Joined: Jul 2002
Posts: 679
Likes: 0
From: McLean, VA
scottisha-
Forgive me if you already noted this, is this MPG actual or just what the computer shows? Meaning did you take miles per tank and divide by # of gallons put in at fill-up?
I find my computer gives totally inaccurate #'s, the best I've truly gotten (by using the above method) was 32.x on the highway.
On a side note, with over 100K on your C230 what problems have you encountered? I'm just about to hit 50K and am debating about an extended warranty. Any feedback you have is appreciated.
Thanks.
Forgive me if you already noted this, is this MPG actual or just what the computer shows? Meaning did you take miles per tank and divide by # of gallons put in at fill-up?
I find my computer gives totally inaccurate #'s, the best I've truly gotten (by using the above method) was 32.x on the highway.
On a side note, with over 100K on your C230 what problems have you encountered? I'm just about to hit 50K and am debating about an extended warranty. Any feedback you have is appreciated.
Thanks.
Member
Joined: Sep 2004
Posts: 172
Likes: 0
From: Orlando, Fl
My gas sipping C-Class
scottisha-
Forgive me if you already noted this, is this MPG actual or just what the computer shows? Meaning did you take miles per tank and divide by # of gallons put in at fill-up?
I find my computer gives totally inaccurate #'s, the best I've truly gotten (by using the above method) was 32.x on the highway.
On a side note, with over 100K on your C230 what problems have you encountered? I'm just about to hit 50K and am debating about an extended warranty. Any feedback you have is appreciated.
Thanks.
Forgive me if you already noted this, is this MPG actual or just what the computer shows? Meaning did you take miles per tank and divide by # of gallons put in at fill-up?
I find my computer gives totally inaccurate #'s, the best I've truly gotten (by using the above method) was 32.x on the highway.
On a side note, with over 100K on your C230 what problems have you encountered? I'm just about to hit 50K and am debating about an extended warranty. Any feedback you have is appreciated.
Thanks.
Well, he thinks this jumping around or jerking is what has been causing the sprocket to break on the compressor.......He's a great tech, as he's warrantied the compressor (parts and labor) each time......Other than that....just typical service for the past 110k miles....
I'm having him change my spark plugs and throw on my third set of wipers too.
I don't want to jinx myself, but the car has been super reliable and never left me stranded. (I'm knocking on wood)
I would buy this car again in a heart-beat.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 2,140
Likes: 1
From: Long Island, NY
C3Twon AWD Jumpofffff
and barelly 17ish around town/city
same here, my car has like 61K replaced spark plugs with new NGK's begining of the summer. I actually just bout a bottle of fuel additives today STP i think w/e it was on sale... so hopefully that will help. I have service B coming up soon i'm sure the air filter is probably filthy so hopefully that will make my mpg go up.
same here, my car has like 61K replaced spark plugs with new NGK's begining of the summer. I actually just bout a bottle of fuel additives today STP i think w/e it was on sale... so hopefully that will help. I have service B coming up soon i'm sure the air filter is probably filthy so hopefully that will make my mpg go up.
