C230/C250 owners question!
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Junior Member
Joined: Mar 2010
Posts: 40
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C250 4M Sport
C230/C250 owners question!
Vehicle: C250 4-matic Sport 7G (M272 2.5L V6 201hp)
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
Last edited by Carzzz; Jun 27, 2010 at 06:15 PM.
MBWorld Fanatic!
Joined: Sep 2009
Posts: 2,108
Likes: 7
From: Dix Hills, New York
2012 C250 Coupe
I can't explain as to why. But I can confirm that my c300 has been doing something similar. At first I felt my c300 was faster than what MB claims, but as of late I have been less than impressed. In fact, the difference between how my vehicle used to be, versus how it is now, is like night and day.
A while back I remember someone explaining a phenomenon where over time the vehicle's performance degrades and something must be done to fix it. Spark plugs possibly?
A while back I remember someone explaining a phenomenon where over time the vehicle's performance degrades and something must be done to fix it. Spark plugs possibly?
Super Member
Joined: Apr 2010
Posts: 667
Likes: 8
From: Boston 'burbs
2018 E300 Lux, 2006 Corvette Z51, 2015 Mercedes ML350 (wife's)
Vehicle: C250 4-matic Sport 7G (M272 2.5L V6 201hp)
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
Senior Member
Joined: Jul 2008
Posts: 385
Likes: 0
W204, W220, S15 Silvia
its normal to be slower than it claimed, but full 2 second seems odd
i have c230 RWD and i feed it with 97 every time but never timed it, but it seems pretty fast to me
the 2.5 litre is actually very similar to the c300 ones hence the similarity in performance, the cylinder dimensions r the same, its just the travel that makes the displacement less, so essentially if we replace the crank we will get the same 3 litre v6, but its not like the performance of c300 really makes that much different to be worth the change, i suspect it is slightly torquier
i have c230 RWD and i feed it with 97 every time but never timed it, but it seems pretty fast to me
the 2.5 litre is actually very similar to the c300 ones hence the similarity in performance, the cylinder dimensions r the same, its just the travel that makes the displacement less, so essentially if we replace the crank we will get the same 3 litre v6, but its not like the performance of c300 really makes that much different to be worth the change, i suspect it is slightly torquier
Last edited by zankok; Jun 28, 2010 at 08:11 AM.
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Joined: Mar 2008
Posts: 3,714
Likes: 56
From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
91 Is not Premium fuel.
Vehicle: C250 4-matic Sport 7G (M272 2.5L V6 201hp)
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
Condition: well past Break-in period, feed only with Premium Fuel (91 Octane).
I know this car never feel fast, but adequate for my day-to-day drive.
Recently give a run from 0-100km/hr on a vitually unnoticable incline.
"Sport" Mode, vehicle warmed up, and shifts @ 6500rpm; temperature around 20C; I was the only person in the car (weight less than 150lb), and with only half tank of gas
It tooks 10.2 sec!
MB Canada rate it as 8.4 sec from 0-100km/hr
Is there something wrong with my vehicle? It is like 2 sec slower than mb stated
An ever so slight upgrade will make a lot of difference to your time. Try the timed run on a perfectly flat stretch of road.
Super Member
Joined: Apr 2010
Posts: 667
Likes: 8
From: Boston 'burbs
2018 E300 Lux, 2006 Corvette Z51, 2015 Mercedes ML350 (wife's)
I also think that your method of timing may be part of the problem. See if you can borrow someone's G-Tech if you don't have one. They're not the be all end all, but they are pretty accurate. I think there's an iPhone app that will give you 0-60 times as well.
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Senior Member
Joined: Feb 2008
Posts: 300
Likes: 2
From: Toronto
2008 c300
In Australia 91 is not Premium fuel , 92 is our regular then 95 mid range & 98 premium.I did not think your US engines would run at optimum specs on that 91 fuel .
An ever so slight upgrade will make a lot of difference to your time. Try the timed run on a perfectly flat stretch of road.
An ever so slight upgrade will make a lot of difference to your time. Try the timed run on a perfectly flat stretch of road.
As to the speed, MB may hit 0-60 in a little more brutal fashion than owners would care to use?
Cheers
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Thread Starter
Junior Member
Joined: Mar 2010
Posts: 40
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C250 4M Sport
Tested a few W204 with 2.5L V6 never pulls hard... I have a van, rated about 9 sec from 0-100km/hr, that pulls noticeable harder than the benz (2.5L V6 of course)
I guess my feeling is right!
I hope my car has no mechanical issue that causes almost 2 seconds slower than what mb rated...
Something interesting is that MB rated 2.5L V6 with or without 4-matic from 0-100km/hr in 8.4 sec
I guess my feeling is right!
I hope my car has no mechanical issue that causes almost 2 seconds slower than what mb rated...
Something interesting is that MB rated 2.5L V6 with or without 4-matic from 0-100km/hr in 8.4 sec
Member
Joined: Sep 2010
Posts: 171
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GLK 250
Hey bro .. i have the same car as you
Shifting the gear at 6500 rpm does not give the best performance in acceleration. From what i remember, try shift ur gear one at 4500, gear two at 5000.... you might see difference in acceleration from 0-100. RMB shift your car at 6500 rpm will not get u the max HP, but it will get u the max torque! That why plp will down shift before they enter to the corner or turn, so their car can keep in very high RPM. Once they exit the corner, they will up shift to make the short boost in order to maintain the car at the high speed. By the way, you might want to switch from 91 to 94 performance fuel, which offer in Sunoco and most of the petro Canada.
Shifting the gear at 6500 rpm does not give the best performance in acceleration. From what i remember, try shift ur gear one at 4500, gear two at 5000.... you might see difference in acceleration from 0-100. RMB shift your car at 6500 rpm will not get u the max HP, but it will get u the max torque! That why plp will down shift before they enter to the corner or turn, so their car can keep in very high RPM. Once they exit the corner, they will up shift to make the short boost in order to maintain the car at the high speed. By the way, you might want to switch from 91 to 94 performance fuel, which offer in Sunoco and most of the petro Canada.
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From: Midwest, US
'17 GTR, '17 GLC43, '14 Panigale 899, '20 V4
You were already out of the power band at 6.5K Since you have the 7G, I can guarantee you that the fastest 0-60 time will come when you leave it in auto mode and put it in sport mode.
Thread Starter
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C250 4M Sport
Just uploaded...
http://www.youtube.com/watch?v=QH5JxG9nMYg
I forgot to set a higher resolution on my last attempt
It was in both "S" mode and auto mode!
http://www.youtube.com/watch?v=QH5JxG9nMYg
I forgot to set a higher resolution on my last attempt
It was in both "S" mode and auto mode!
Member
Joined: Sep 2010
Posts: 171
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GLK 250
After watched ur video, i got few questions to ask u...
1) Did u kick down? In the video, it seems u have a weak start
2) Did u check ur tire pressure? Make sure it 30 in the front and 35 in the bak. Trust me, tire pressure do make the difference!
3) Did ur car equip with performance tire or just normal tire? This makes the difference TOO!
4) Did you turn off the heat and air condition?
1) Did u kick down? In the video, it seems u have a weak start
2) Did u check ur tire pressure? Make sure it 30 in the front and 35 in the bak. Trust me, tire pressure do make the difference!
3) Did ur car equip with performance tire or just normal tire? This makes the difference TOO!
4) Did you turn off the heat and air condition?
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 40
Likes: 1
C250 4M Sport
After watched ur video, i got few questions to ask u...
1) Did u kick down? In the video, it seems u have a weak start
2) Did u check ur tire pressure? Make sure it 30 in the front and 35 in the bak. Trust me, tire pressure do make the difference!
3) Did ur car equip with performance tire or just normal tire? This makes the difference TOO!
4) Did you turn off the heat and air condition?
1) Did u kick down? In the video, it seems u have a weak start
2) Did u check ur tire pressure? Make sure it 30 in the front and 35 in the bak. Trust me, tire pressure do make the difference!
3) Did ur car equip with performance tire or just normal tire? This makes the difference TOO!
4) Did you turn off the heat and air condition?
2) Tires pressures were right (at spec)
3) Stock wheels and Conti tires: 225/45R17 front and 245/40R17 rear
4) No a/c, no heat, or not even fan
