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    eta temp sensor question..

    Can anyone run through the functions of the 4 different temp sensors on the '86 eta please? Did they really need four to do the job?

    From some searching I understand one is just for the cluster gauge, one goes to ECU, one goes to cold start switch...?? I may be off already....

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    So, we're talking about items 12, 13, 15, & 16 on the diagram. The description from realOEM says:

    12 - coolant sensor
    13 - temp switch, water
    15 - temp switch
    16 - temperature-time switch (the thermo-time switch, correct?)

    What does each do, does the Bentley list an electrical test for each, and is it worth just changing them all out at 175k? The parts sources sometimes contradict each other, or just list them by color.

    We tested 15 I think, and the numbers seemed in range.

    The noob thanks you!

    #2
    I am A Bit Confused Here

    As Far as I Remember , My Car Has Only 12 and 13 Switches .
    Which are 1 For The Coolant Temp ( Cold Start )
    and The Other one if for the cluster Reads .
    Haven't Seen other models .

    My Engine is a motronic late model .

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      #3
      Sorry, I forgot to say it's an '86 ES. Four senders, and a couple are spendy.

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        #4
        Same setup as what I have,
        16=ecu temp switch
        15=thermo switch (45c I believe, I have to look at mine)
        13=idle control temp sensor
        12=cluster temp Guage.
        sigpic
        85 swartz/metallic 325E
        84 alpine 325E
        85 zinnoberot 318i/R.I.P
        84 Bronzit 318i/sold
        purchase feed back here=http://www.r3vlimited.com/board/show...82#post3535282

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          #5
          101

          The E30 collection:
          1987 325es M52 - Schwarz / Taurus Red Sport (son #2's)
          1987 325is - Delphin / Black Sport (son #3's)
          1987 325i Convertible - Triple Black
          1989 325iX Coupe - Diamondschwarz / Black Comfort
          1990 325iX Coupe - Sterling Silver / Grey Sport

          1981 Fiat 124 Spider 2000 - Green / Tan
          1998 Volvo V70 GLT - White / Tan
          1998 Volvo S70 T5 manual - White / Taupe
          2001 Ford Windstar - Silver / Grey (parts hauler)
          2006 Lexus GX470 - White / Tan (tow rig)

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            #6
            Thanks all -

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