Recommendations for 2 stage temp switch for 2 speed fans ??

Discussion in 'Engine Topic' started by Aceshigh, Sep 29, 2010.

  1. onelapduster

    onelapduster Veteran Member

    720
    1
    May 5, 2010
    South Joursey
    Bumpity, what year BMW's do I need to be looking for? Also, big wires versus little wires, how many of each? May just buy them instead of searching the JY's. Thanks!
     
  2. cmccarthy

    cmccarthy New Member

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    Mar 27, 2012
    Huntsville, AL
    raising this thread from the dead because I have onelapduster's answer. I found the sensor and pigtail in the junkyard on a 1995 BMW 535. I would say pretty much any inline 6 BMW from of this vintage will likely have this sensor arrangement. Look for 88-96 5 series and 92-99 3 series. On the 5 series it was directly behind the inboard passenger side headlamp sticking off the side of the radiator tank.
     
  3. Non Stock

    Non Stock New Member

    9
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    Apr 4, 2016
    Bowling Green KY
    Wow,last reply in 2012. Anyone looking for the part numbers to get the switches and pieces to build a pigtail to plug onto the BMW temp switch can find them on this forum thread" http://www.gmtruckcentral.com/articles/markviii.html ". Then go to ECS Tunings website and search those part numbers. They are in Ohio and I have bought stuff for my Audi from them for a few years. Good service and products. I just ordered the parts from them today and everything was in stock. I ordered extra wires,two plug bodies and both switches and it was only 93 dollars and some change. The BMW wires are pretty high,but i got everything on one order. Haven't wired the Sable fan I found but it covers all but an inch on either end of an 81 camaro radiator,and maybe an inch and a half on the bottom.
     
  4. Lynd McCormick

    Lynd McCormick Member

    78
    2
    Oct 6, 2017
    Finleyville, PA
    I've been looking online for a connector for the BMW dual fan switch but not having any luck. Everything that I see for a 1995 BMW 535 coolant switch wire is only 2 pins and square shaped instead of round. Any advice or is this not the right year or vehicle? I've found the sensor on rock auto, but I don't see the wires listed. I contacted Rock Auto and their sales people are useless. I expected them to be a bit more technical oriented. They basically said "you give us a part number, we tell you if we have it and what it costs. We don't offer any assistance in helping you find what you want".

    Speaking of Rock Auto, I just had a buddy almost get screwed out of $800 in parts from them. They basically threw parts in a box with no packing and everything was damaged. They were patch panels, cab corners, rocker panels, and a tailgate. Every single piece was damaged due to their horrible packing, or should I say the lack there of. They accept no responsibility for anything and try to blame UPS. He had to file a claim through PayPal who were equally as useless, and I've had that experience with them too.
     
    Last edited: Feb 25, 2018
  5. Notareal T/A

    Notareal T/A New Member

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    Feb 25, 2018
    BMW also uses the same pig tail connectors on signal lamps:

    - housing # 61131378410 (about 3 bucks)
    [​IMG]
    - pig tail wires # 61130007571 socket terminal circular 2.5 ELA with wire 1,0-2,5MM²
    (not the correct ones, but will work) Price also about 3 bucks each.

    I ordered them from https://www.schmiedmann.com they ship worldwide.
    [​IMG] [​IMG]
     
  6. Lynd McCormick

    Lynd McCormick Member

    78
    2
    Oct 6, 2017
    Finleyville, PA
    Nice! Unfortunately it's $21 in parts and over $35 to ship it!

    Man, these BMW parts are difficult. Depending on where you look, the part numbers don't seem to be constant. In one case it says I need 2 of one kind of wire and 1 of another of a different size. Then I get a part number for the connector and on some sites it says it's a wire. Let me throw some part numbers out and maybe someone smarter than me can comment if it's right.

    #61131378410 socket, no wires
    #61130007445 green wire, 90 degrees, .5 - 1.0 mm
    #61130007446 green wire, 90 degrees, 1 - 2.5 mm
    #61311378073 sensor 195/210 degrees (pretty sure if this one)
    #61318361787 sensor 176/195 degrees (pretty sure if this one)
    #61130007571 green wire, straight, 1 - 1.5 mm

    UPDATE.... I bought a #6131836178) sensor and I've found a connector body but didn't purchase yet. Need to know if all 3 pins are the same size, and if so, which is it .5-1 or 1-2.5?
     
    Last edited: Feb 25, 2018
  7. Notareal T/A

    Notareal T/A New Member

    2
    0
    Feb 25, 2018
    Whaat, 35.- for shipping! They offer free shipping end of february to Finland:)

    Your part numbers seems right to me, if you want to use 90 degree connector/wires.
    There are two different wires and connectors. Straight and 90 degrees, depends what you want to use. I chose straight one, it fits better in my case.

    Maybe you want to order them from Amazon (26,73 free shipping) or ECS-Tuning?
    https://www.amazon.com/Genuine-BMW-...rd_wg=FUCnj&psc=1&refRID=J6B77J8FT5APM7ECKCHJ

    Original fan switch wires from factory are very thin, probably because it´s grounding switch.

    (sample pics from web) BMW here:
    [​IMG]
    And Volvo (two yellow/white wires in middle connector):
    [​IMG]
     
    Last edited: Feb 26, 2018
  8. Turbo70Camaro

    Turbo70Camaro Veteran Member Gold Member

    2,127
    110
    Jan 7, 2005
    so cal
  9. Lynd McCormick

    Lynd McCormick Member

    78
    2
    Oct 6, 2017
    Finleyville, PA
    Yes, that’s what I’m gathering minus the Volvo relay. I have dual fans not a single hi/Lo which keeps me from using the Volvo part.
     

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