A button under the gas pedal....wut is it for?
Super Member
Joined: Dec 2003
Posts: 613
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From: Newport Coast, CA
makes your daughter horny
Originally Posted by wingless
The WOT, wide open throttle, switch. When actuated, the engine ECU uses a different map, with greater emissions, to motivate at a greater rate.
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Joined: Aug 2002
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From: York, PA
2003 C230K Sport Coupe, 1986 190E 2.3
Originally Posted by W Cole
Really? The button actually changes the fuel maps? Do the MBZ manuals have this button? I know the BMW autos have it, but BMW manuals do not, so in BMWs case I doubt this button changes the fuel maps, because for this to be the case it would have to be present in both types.
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From: Connecticut
excites your girlfriend
i've heard someone say "kickdown" but didn't know what it was and i've noticed the button under my throttle pedal but didn't know what it was for and now i know! i did some expirimenting with the button and i'm guessing it's only for auto transmission. pressing it on my 6 speed makes no difference in acceleration. i was hoping it would instantly increase supercharger boost or something haha.
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From: York, PA
2003 C230K Sport Coupe, 1986 190E 2.3
Originally Posted by ctC230K
i've heard someone say "kickdown" but didn't know what it was and i've noticed the button under my throttle pedal but didn't know what it was for and now i know! i did some expirimenting with the button and i'm guessing it's only for auto transmission. pressing it on my 6 speed makes no difference in acceleration. i was hoping it would instantly increase supercharger boost or something haha.
Super Member
Joined: Aug 2004
Posts: 810
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From: Illinois, Indiana
2005 C230 Sedan 6spd
I don't do WOT anymore, since the gas here is like $2.49 for premium. But I also felt the button too while I was testing the car with a dop in K&N filter. I hit the redline much faster now~ 
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Senior Member
Joined: Jan 2006
Posts: 491
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From: Redding, California
AMG GTS
so if i were to hold that button down say from a stand still till i hit 135....there will be no problems for my auto tranny to shift? ...it wouldn't redline for too long or anything will it?
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Joined: Feb 2006
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From: Mullica Hill, NJ
2002 MB C230 Kompressor
man, i hate to be a ***** here but you'd think with someone buying a higher end car like this (even if it is the baseline MB), it'd attract two main types of people: driving/automobile enthusiasts, and rich people without a clue. i can see that the latter is the majority here.
even a 50's chevy did have a type of kickdown setup, linked to the throttle/vacumm (just so's ya'll know- throttle position and vaccum pressure are directly related in naturally aspirated cars, and even in super/turbo-charged vehicles, but the forced inducion adds another factor i'm not even going to touch on here.)
i thought that a WOT/kickdown setup was common knowledge.....even my mother knows what it is, and where it is, and shes not car savvy at all!
even a 50's chevy did have a type of kickdown setup, linked to the throttle/vacumm (just so's ya'll know- throttle position and vaccum pressure are directly related in naturally aspirated cars, and even in super/turbo-charged vehicles, but the forced inducion adds another factor i'm not even going to touch on here.)
i thought that a WOT/kickdown setup was common knowledge.....even my mother knows what it is, and where it is, and shes not car savvy at all!
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Joined: Aug 2005
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Originally Posted by mctwin2kman
It is to tell the ECU that the Drive By Wire Throttle is at Wide Open Throttle on all models. Also is the kickdown for the auto tranny. The tranny by design will only drop one gear lower unless you hit that switch. So if you are going 40 MPH in 5th and floor it but do not engage the kickdown switch you will only drop to 4th gear. The switch tells the tranny controller to drop to the absolute lowest gear that can be used so at 40 it would drop to at least 3rd. I even have this on my 190E, it uses a standard bowden cable for downshifting but at say 25 I am in 4th if just cruising, so it will only drop to 3rd. Well I want 2nd so I push hard enough to engage the switch and then my transmission drops to 2nd for me. Also in that car it forces a 1st gear start as opposed to 2nd gear which is normal. Its main purpose though is WOT!
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From: York, PA
2003 C230K Sport Coupe, 1986 190E 2.3
Originally Posted by eddie081
That is correct, wow some of you guys really drive your cars pretty hard
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From: Pasadena, CA
2002 C230K, 2013 BMW 328, 2015 BMW X5
Originally Posted by Josh K
Uh, no it doesn't. I've had my pedal to the floor and still been shut down at 135.
Hmm, 135, I thought I touched 139, perhaps even 140. I "WUZ" driven up DA 5 on the way TA Napa. I'll admit that at those speeds I "WUZNT" paying 2 much attention to the speedo though.
Rick, WHO CARES HOW PEOPLE SPELL & PUNCTUATE?
MBWorld Fanatic!
Joined: Jul 2005
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From: Sydney, Australia
W203 slightly modified
The foot is nearest the switch when tempomat (speed limit mode) is engaged - you can be driving at 18mph and have your foot all the way down and it doesnt go much faster all (unless dowhill). A press of the switch and it all switches off.
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Joined: Sep 2005
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From: Dubai, United Arab Emirates
'03 E 240 'Elegance'
Originally Posted by gaiex
I had a 98' automatic CLK200K and it had the switch and it was great 
One question, I have my coupe, a diesel one, with 6 manual gears and it have the switch too!!!
Does it do anything, I didn't noticed yet???
One question, I have my coupe, a diesel one, with 6 manual gears and it have the switch too!!!
Does it do anything, I didn't noticed yet???
The switch is also present in the diesel cars (CDI's to be precise) to enable the turbocharger to spool up earlier...I have driven an E 270 CDI 6-speed, u dont need to let go off the accelerator pedal when changin gears as long as u have ur foot all the way down n have the button pressed.
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Joined: Mar 2005
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From: New Jersey, USA
Black 04 C230 Kompressor SS
Originally Posted by PsssTkiD
i was waiting in the car....and the car engine was off....i was playing with the gas and pressing it all the way, then theres a button!.. wut is that for?
