shifting at high RPMs - PeachParts Mercedes-Benz Forum

whunter · #1 12-01-2013, 06:03 PM

Quote:

Originally Posted by RML

I just had this problem today. After flooring it to pass a car, the transmission would not shift back into a higher gear. Then I had problems getting out of first and second all the way home. Engine was running at about 4500 RPMs and it was still reluctant to shift. I had a hunch it had something to do with the kick down switch because it happened just after I floored it.

So, I just pulled the kick down switch and found it stuck in the down position. It is very tight to move it out of that position. I sprayed some silicone in it but it still does not return to the up position without me pulling on it. Is there some way to take it apart without breaking it, so I can clean and lubricate it? I am wondering if there is a rusty spring inside. I am guessing it has not been engaged for quite some time.

It is not cost effective to repair a $13.00 USD part...

Kick-Down Switch - on Accelerator Pedal
MB# 0015456314
Pelican Parts - Automotive Parts and Accessories - Porsche & BMW

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RML · #2 12-01-2013, 08:09 PM

Quote:

Originally Posted by whunter

It is not cost effective to repair a $13.00 USD part...

Kick-Down Switch - on Accelerator Pedal
MB# 0015456314
Pelican Parts - Automotive Parts and Accessories - Porsche & BMW

.

You are correct. I looked up the part and saw how inexpensive it is, and thought, "Why am I messing around with this?" In the meantime, I put some lithium grease where I could, chased it in with some silicone spray, worked it a bunch of times and it seems to be OK for the time being. But it is not 100%. I'll add one to my next parts order and will avoid flooring it until I get the new switch.

I did discover on putting the switch back in that you do not need to remove the whole carpet to get to it. It is right there under the accelerator pedal.