Well my worst fear has finally come true... my kickdown has broken. For the past week or so it has not been clicking properly or at all, but still shifting atleast. Today I went to floor it and it would not shift down! Once I got to my destination, I noticed the black plastic peice had fallen off.... so I put it back on, but it would not stay. That is why it is temporarily Scotch taped on (desperate, I know). Is working ok for the time being though, albeit lack of resistance/pressure at kickdown.
Anyway, I have the part number for a new kickdown switch ($28), does anyone know how easy it is to change?
Thanks.

(I don't think it broke because of real over use, but because sometimes I just jam on it with all my force!)

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

I am not sure about your kickdown, but mine has a cable that runs from the transmission to the throttle linkage at the rear of the intake manifold. It connects with a socket that is on an adjustable arm for adjusting the setting. ('81 380SL)

Yes, I have a wire that runs to the trans also (I don't know about any adjustments though...).
But that is not the proble, the problem is with the physical plastic switch on the floor just behind the pedal.
Thanks anyway.

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

Make sure your throttle cable is properly adjusted/tightened. My old C200 would not kick down (i have posted about this about 6 months ago) and I thought maybe the switch was broken. Turns out the throttle cable was loose and so even with the accelerator fully depressed I was not getting a wide open throttle.

__________________
JJ Rodger
2013 G350 Bluetec
1999 SL 500
1993 E300 diesel T
1990 190

JJRodger,
I remember your problem with kick-down! But I know that it's the switch, it will stick kickdown but there is not resistance, and the physical kickdown mechanism has actually broken off, thus i know it's the kickdown switch.

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

David: I can't help you, I'm afraid.

No kickdown... bummer.

__________________
JJ Rodger
2013 G350 Bluetec
1999 SL 500
1993 E300 diesel T
1990 190

I changed the kickdown switch on my car before, it was a peice of cake, you just have to remove the carpet/foam peice or at least peal it back some to get some room to be back there. I dont know about your model MB but on mine it wasnt hard.

Ok... so what was involved? What else had to be done? Screws... clamps, what?
Atleast it's easy... doesn't seem like much room to pull the carpet back or away though.

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

No screwdrivers, clamps, pliers, or tools were needed. If i rmember correctly the old one pulls out/snaps out, and the new one snapes in place. Its been a while so I honestly do not remember. Just buy the part at the parts dept and when you get it examine it. On my car the floor mat moves out, there is two snaps on the back of it and you can pull the whole thing out, but all i did was pull it back in the front so i can get my hands down in there. I cannot say for certain because we do have diff model cars.