[racerboy9]

I was replacing my rebuilt cruise control amplifier when I found this 0085452028 pin bushing hanging down. I found it is to keep the blower motor from running till the water temperature is warm but I can't find where to plug it in. Any help appreciated.

 

[plinker17722]

May fit on a temperature sensor on the right side of the engine rail you will see other sensors along the side . Look in here Model 124 Maintenance Manual Index

 

[racerboy9]

This is under the dash on the drivers side.

 

[plinker17722]

I did find a picture of a oblong unit that looked like a radio amplifier with air vents in it but only 6 inches square where the plug fits in can you see anything like this? .Ony a guess .

 

[plinker17722]

And this .

part 26 i dont know what that is it plugs in to . Would put up the link but its to long .

 

[plinker17722]

Ican see that part 32 is the hadlight switch .

 

[4Matic 300TE]

Nope.That looks like it is from the Hall sensor (speed) multi connector above the steering column in the under dash area. They are single pole and supply speed signals to the climate control and radio. Easily dislodged.
The other place that connector is used is on the wiper/indicator stalk switch on a wagon. It turns the rear wiper on, if your front wipers are on, when you select reverse, (if you don't have a wagon) maybe someone used a wagon stalk on your car, which would work fine.

 

[khomer2]

I did find a picture of a oblong unit that looked like a radio amplifier with air vents in it but only 6 inches square where the plug fits in can you see anything like this? .Ony a guess . View attachment 2803669

This is a latter model w124 blower resistor.

 

[plinker17722]

Right may be it is, but the plug is like it that goes inside
Still it is a bit of a hard task to find where parts go when the part number was given as 0085452028 and thats it in the list above .

 

[racerboy9]

I talked to my ex-Mercedes mechanic guru and I think 4Matic 300TE is correct in post #7 that it is from the speedometer. My mechanic said that it may be the connector that adjusts the radio volume according to the road speed. So say you come off the freeway into town and your speed reduces and your road noise is less it reduces the radio volume. Not a big deal if it is not connected but I will try and reconnect it to the back of the speedometer and see what happens.

 

[4Matic 300TE]

It goes onto this hall multi connector up above the steering column under the instrument cluster. Here

 

[racerboy9]

Great! I will check it out today.

 

[khomer2]

Right may be it is, but the plug is like it that goes inside
Still it is a bit of a hard task to find where parts go when the part number was given as 0085452028 and thats it in the list above .

As a reference /clarification
The only 'plug / pin connectors on the resistor (post #4) located under the the blower motor (at the firewall under the hood: