C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

C versus S mode question

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Old Dec 1, 2005 | 03:39 PM
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i drive them all, fast and hard
C versus S mode question

well as many of u guys know, its started to snow here in chicago, and as this being the first time i ve driven in snow (being from California), i am wondering is it necessary to use C mode. I understadn that it starts the car in second gear, but what difference does that really make. ??? thanks


also, i have the stock tires, contnetals sport tires, with only 11000 miles, will these be a major problem in the snow. thanks
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Old Dec 1, 2005 | 06:22 PM
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2004.5 C 230
I understadn that it starts the car in second gear, but what difference does that really make
.
Less tire spin,

Chicago gets a lot of snow, get yourself some winter tires.
https://mbworld.org/forums/wheels-tires-suspension-brakes-forum/126777-stock-vs-winter.html
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Old Dec 1, 2005 | 07:12 PM
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Originally Posted by vdubpower
also, i have the stock tires, contnetals sport tires, with only 11000 miles, will these be a major problem in the snow. thanks
Well I can't comment on the stock because I run on Goodyear Eagle F1's for the summer but in the winter I grabbed some Blizzaks on the AMG replicas from Tire Rack and I couldn't be happier. I don't remember having the ABS kick in much last winter....they really work well.

For the 800 or so it will cost for wheels and tires its worth it.....and if you have someone with a better jack then what mercedes gives you it'll only take 45 min or so to install in the fickin cold like I had to do last night.

Where in Chicago are you?
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Old Dec 1, 2005 | 07:54 PM
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C55 ///AMG, 535xi
Originally Posted by vdubpower
well as many of u guys know, its started to snow here in chicago, and as this being the first time i ve driven in snow (being from California), i am wondering is it necessary to use C mode. I understadn that it starts the car in second gear, but what difference does that really make. ??? thanks


also, i have the stock tires, contnetals sport tires, with only 11000 miles, will these be a major problem in the snow. thanks
I usually leave it on C when im driving IN snow, because it limits the pickup speed, so like said before, less tire spin....

but usually when I'm stuck in snow, i put it on S and have the ESP off, kuz the ESP locks u from moving...and u wanna move out so ESP OFF!
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Old Dec 1, 2005 | 09:18 PM
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The purpose of the "C" position that used to be called "W" for winter is to limit the torque by starting in second and up-shifitng sooner than in "S". This is also true in reverse where you start in a higher gear. Lower torque really helps you get away on slippery streets.
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Old Dec 1, 2005 | 09:43 PM
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i drive them all, fast and hard
so if i start the car and press it in to C that means im in second, and when im driving around and come to a stop will it only downshift to 2 or 1. basically, will i never see 1 in C mode????
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Old Dec 1, 2005 | 09:54 PM
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Originally Posted by vdubpower
so if i start the car and press it in to C that means im in second, and when im driving around and come to a stop will it only downshift to 2 or 1. basically, will i never see 1 in C mode????
I'm not sure it won't downshift into 1st, but I know in winter mode it will not start out in 1st.

I think MB-JIM gives the best explanation on how this works and why. I've always viewed it as a need when conditions were very slippery, and there is a risk of spinning my tires. Mainly for getting the car to move from a stand still (parked, or at a stop on an icy road). However, I don't think it will do much (or anything) in helping you actually drive around in the snow, or in icy situations.
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Old Dec 1, 2005 | 10:16 PM
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i drive them all, fast and hard
so which tires was it you guys recomend for snow.

this will be my only winter in chicago ( tinley park area), because i am moving to miami next yr. so i have this hope i can just make do with what i have enless you all really think that would be stupid

with my 85 500sel, i have spin the rear end with the slightest rain. i havent driven it yet in the snow but im sure i will have trouble. heck and that car has all season good yrs on it now. go figure?
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Old Dec 1, 2005 | 10:23 PM
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Originally Posted by vdubpower
this will be my only winter in chicago ( tinley park area), because i am moving to miami next yr. so i have this hope i can just make do with what i have enless you all really think that would be stupid
Since you are in the city and will probably stay in the city or stick to the toll/free ways you should be ok with the all-seasons. If you plan on getting off the beaten path in Chi then you'll need some snows.

The city and state do a REALLY good job usually of clearing snow during the downfall.
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Old Dec 1, 2005 | 10:28 PM
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C is more fuel efficent and better gear shifting..on S it burns more fuel and it takes longer 2 change gears
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Old Dec 1, 2005 | 10:34 PM
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Originally Posted by vdubpower
so if i start the car and press it in to C that means im in second, and when im driving around and come to a stop will it only downshift to 2 or 1. basically, will i never see 1 in C mode????
I believe if you floor it on takeoff while in "C" you will start in second and the transmission will immediately drop to first which may make you think your transmission isn't shifting smoothly. I haven't tried this procedure since I'm still breaking in the car. Maybe someone can give it a try.
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Old Dec 4, 2005 | 08:03 PM
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Originally Posted by MBUSA503
C is more fuel efficent and better gear shifting..on S it burns more fuel and it takes longer 2 change gears
what? this doesnt make sense to me. it sould take about the same amount of time to shift in either mode. what it does in C is limits the amount of torque so it shifts sooner than S. that doesn't mean the shifts are faster, it just means it shifts before the engine gets to higher RPM's than S. Also, it would seem to the that S would be more efficient being that it makes better use of the engines output when accelerating by running it where you get more torque. C shifts sooner so you arent getting as much torue at the wheels, thus making the engine have to rev higher to put down the same amount of power to the pavement.

or am i totally misunderstanding something here
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Old Dec 4, 2005 | 08:08 PM
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Originally Posted by MB-JIM
I believe if you floor it on takeoff while in "C" you will start in second and the transmission will immediately drop to first which may make you think your transmission isn't shifting smoothly. I haven't tried this procedure since I'm still breaking in the car. Maybe someone can give it a try.
I would try it but my car got into an argument with a concrete stopper in a parking lot... the conflict turned violent and my car is currently in a recouperation clinic. But, since she had to go in we thought that she could have a few other things done as well being that the clinic offers a wide range of services and we had been putting off a few things for quite some time (her tail got cought by some hail quite some time ago and she's been driving around with the scars ever since, as well as her front suspension seemed to be acting up a bit and we wanted to get that checked out before it became serious). But, she should be back sometime the middle or end of this week, I'm very excited as I haven't seen her since last weekend! We're going to have to engage in some hot and heavy activity soon as she gets home!
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Old Dec 4, 2005 | 08:40 PM
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Originally Posted by MB-JIM
I believe if you floor it on takeoff while in "C" you will start in second and the transmission will immediately drop to first which may make you think your transmission isn't shifting smoothly. I haven't tried this procedure since I'm still breaking in the car. Maybe someone can give it a try.
Yeah, it will downshift to 1st when you floor it from a start. However, I can't really recall a jerking motion because it went from 2 to 1 while accelerating.

It's just a bit scary when you're trying to overtake and you basically just dragged your car onto the way of another car.
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Old Dec 4, 2005 | 09:20 PM
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Originally Posted by b3d_sage
what? this doesnt make sense to me. it sould take about the same amount of time to shift in either mode. what it does in C is limits the amount of torque so it shifts sooner than S. that doesn't mean the shifts are faster, it just means it shifts before the engine gets to higher RPM's than S. Also, it would seem to the that S would be more efficient being that it makes better use of the engines output when accelerating by running it where you get more torque. C shifts sooner so you arent getting as much torue at the wheels, thus making the engine have to rev higher to put down the same amount of power to the pavement.

or am i totally misunderstanding something here
The trans in S mode allows the car to go through the powerband and rev up to 6k rpm before shifting, using the engine's power better. While the C mode will shift u earlier. Thats what was meant to take longer to shift.
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Old Dec 4, 2005 | 09:33 PM
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Anybody else getting about 3mpg better with C on? I was surprised at the difference. Downside: car is even more of a dog.
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Old Dec 4, 2005 | 09:43 PM
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Originally Posted by Young Doc
Anybody else getting about 3mpg better with C on? I was surprised at the difference. Downside: car is even more of a dog.
yeah that would surpise me... but then I often shift manually anyhow (and I wouldnt call my car a dog... maybe you have a slower one?)
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Old Dec 4, 2005 | 10:02 PM
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Originally Posted by b3d_sage
yeah that would surpise me... but then I often shift manually anyhow (and I wouldnt call my car a dog... maybe you have a slower one?)
My other cars are 300-400 HP, so by comparison its a dog to me. However I plan on playing with the forced induction setup when I get some time (which could be a while).

I still see plenty of potential in the little blown four banger. The first time I saw the FMIC and "Kompressor" badge I thought the C230K would be a budget rocket mercedes with a little tweaking.
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