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Replacing Your Kick Down Switch
 
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Pelican Technical Article:

Replacing Your Kick Down Switch

Steve Vernon

Time:

30 minutes30 mins

Tab:

$30

Talent:

*

Tools:

Hands

Applicable Models:

Mercedes-Benz W124 (1986-95)

Parts Required:

Kick down switch

Hot Tip:

Use care with the plastic clips

Performance Gain:

Proper acceleration

Complementary Modification:

Detail the interior

If you are having problems when you accelerate with the transmission not "kicking down" into a passing gear there is a good chance your kick down switch has gone bad. There is no way to test the switch by pressing it to see if it moves because it does not. Replacement is quick and easy though.

The kick down switch is located below the accelerator pedal (red arrow).
Figure 1

The kick down switch is located below the accelerator pedal (red arrow). You will need to first remove the carpet to change out the switch.

The switch sits in a metal bracket attached to the chassis.
Figure 2

The switch sits in a metal bracket attached to the chassis. It will only fit into this bracket in one way so you do not need to worry about installing it incorrectly. Leave the wiring attached as it much easier to remove with the switch out of the bracket. Squeeze in the two plastic clips (red arrows) on each side of the switch and pull it straight out of the bracket.

There is a long cable on the switch so pull it forward.
Figure 3

There is a long cable on the switch so pull it forward. Remove the wiring connection (red arrow). When installing the new switch make sure that the plastic clips (yellow arrows) click into place on the bracket and that you route the wiring cable back to its original position so it does not interfere with the accelerator pedal or arm. Reinstall the carpet and you are done.


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Comments and Suggestions:
Jspazz Comments: I have a 1987 Mercedes Benz 300e non diesel straight 6. It reveals but won't. Shift in drive only reverse I've tried everything this car is well taken care of. And I'm the 3rd owner over 300k miles idk if it needs a transmission filter change or oil. Any help? No check engine lights are on.
October 29, 2016
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked by a transmission specialist before it gets much worse.
- Nick at Pelican Parts
 

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