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-   -   Where does this Aux Coolant sensor go? (http://www.peachparts.com/shopforum/showthread.php?t=246930)

taylorsyn 03-07-2009 06:46 PM
Where does this Aux Coolant sensor go?
 
1 Attachment(s)
Hello,

I have attached an image of the item.

Looked on the forum and the service manual, but I could not find a definite answer. What I gathered is that this sensor is located on IP side of the engine closest to the vacuum pump can someone verify this for me? The sensor(s) currently on the engine look nothing like this new part.

Thanks,
Taylor

ForcedInduction 03-08-2009 06:18 AM
On the thermostat housing next to the EGR's vacuum tubes.

my123ca 03-08-2009 05:20 PM
The one between glowplug #2 and #3 and the the one on top of the thermostat housing looks the same on my car but looks different with the picture you provided.

pawoSD 03-08-2009 05:30 PM
On a 617 diesel the coolant gauge sender (for on the dash) is on the side of the engine between the #2 and #3 glow plugs.

The blower-cut-out sensor switch for the klima is on the thermostat/egr housing area on the front passenger side of the engine.

taylorsyn 03-08-2009 07:02 PM
To be more specific this sensor is the "Cooling Fan Sensor; Auxiliary Fan Switch; 212 Degree F"

One person says it goes on the water pump another says between #2/3 GP

ForcedInduction 03-08-2009 07:04 PM
Quote:
Originally Posted by taylorsyn (Post 2133357)
To be more specific this sensor is the "Cooling Fan Sensor; Auxiliary Fan Switch; 212 Degree F"
Only the W116 300SD (79-81) had that switch. W123 and W126 models don't have one.

taylorsyn 03-08-2009 09:47 PM
Quote:
Originally Posted by ForcedInduction (Post 2133358)
Only the W116 300SD (79-81) had that switch. W123 and W126 models don't have one.
Well it's in the parts catalog that it goes with my car which is a W126

78240D 03-08-2009 09:54 PM
My vote is right on the thermostat housing!

nickofoxford 03-08-2009 11:23 PM
Sorry about the huge picture, but here it is circled:

http://i106.photobucket.com/albums/m...k01/thermo.jpg

ForcedInduction 03-08-2009 11:59 PM
2 Attachment(s)
Quote:
Originally Posted by taylorsyn (Post 2133477)
Well it's in the parts catalog that it goes with my car which is a W126
It covers lots of models and shows many part options not available.

Quote:
Sorry about the huge picture, but here it is circled:
Nope, wrong sensor. That is the heater lockout switch.

The switch is used only on W116 models, is outside the thermostat housing and is circled in the first picture attached. The second picture is of an 84 300SD like the OP, note the lack of switch.

taylorsyn 03-13-2009 02:02 PM
See for yourself its in the parts catalog for this vehicle.. Now If I can just figure out where the Aux Coolant sensor switch goes.....

http://catalog.peachparts.com/ShopByVehicle.epc?q=&yearid=1984%40%401984&makeid=63%40%40MERCEDES-BENZ%40%4063%40%40MERCEDES-BENZ%40%40X&modelid=6208%3AMBC|1510%3AED|10000134%40%40300SD&keyword=switch&subcatid=P:241005@@Auxil iary+Fan+Switch&mode=PA

ForcedInduction 03-14-2009 05:45 AM
Quote:
Originally Posted by taylorsyn (Post 2138430)
Now If I can just figure out where the Aux Coolant sensor switch goes.....
You. Don't. Have. One.


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