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Service warning light on only at high speed

Discussion in 'Stelvio Chat & Tech' started by KayJay, Feb 9, 2020.

  1. KayJay

    KayJay Tuned and Synch'ed

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    John, thanks to your research I was able to find several switches here in the US that looked to be an exact fit with the injector type connector. I had already ordered the spade type connector from MG Cycle and it should arrive tomorrow. I think the thread size will be correct without the adapter as I believe MG Cycle sells the smaller thread type for other model Guzzis. That said, I found a BMW switch that looks to be an exact replacement. I found these switches for as little as $5 online. I'll check with my mechanic tomorrow and see if he is willing to wait until I receive the BMW switch, or if he wants to go ahead and use the spade type switch along with the terminals you suggested. To confirm the threads are the correct size on the BMW switch I am going to order one and compare the switches. The BMW part number is:
    BMW Engine Oil Pressure Sender Switch Oil Pressure Sensor #12 61 1 730 160
    I'll let everyone know if the threads are correct. They sure look like they are. Hopefully any Stelvio owners who need to replace a switch in the future will be able to search this BMW part number and get an exact replacement switch without the headache of having to modify the wiring.
     
    scottmastrocinque likes this.
  2. KayJay

    KayJay Tuned and Synch'ed

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    Well,
    I don't think the BMW switch will work. Everything was the same as the original except the overall size. Looks like i is a couple of millimeters larger so there may not be enough room. Will check and post the results.
     
  3. John Warner

    John Warner Cruisin' Guzzisti GT Contributor

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    Both the ones I've fitted (to my 2009 & 2012 Stelvios) were a little longer than the originals.
    The one I took off the 2012 was the later Spade Terminal type, with the 20+mm long Adaptor, so a slightly longer one will fit.
    The Switch is oriented parallel to the left Cylinder, so even if it was much longer, it would just run alongside it.
    OilPxSwitch1.jpg
    IMG_20190707_104336.jpg
     
  4. KayJay

    KayJay Tuned and Synch'ed

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    Thanks John,
    After taking a few measurements it Looks like the BMW switch I received today is exactly the same switch you used in your 2009 Stelvio. It wasn't the thread length, but the larger diameter that had me worried. At first sight I was concerned because the replacement switch diameter is 24 mm and the original was only 20 or 21mm. Knowing things are tight in there I wasn't sure I would have room to install it. Anyway, after checking, the specs match what you posted:
    LENGTH ~ 41.25 mm

    SPANNER SIZE ~ 24

    THREAD ~ M12 x 1,5 mm

    SWITCH POINT TO ~ 0.5 bar

    SWITCH POINT FROM ~ 0.2 bar

    THREAD LENGTH ~ 12 mm

    It is brown. Looks like the exact same switch you used. I found them all over the internet here in the states.
    BMW Engine Oil Pressure Sender Switch Oil Pressure Sensor #12 61 1 730 160
    tempImage8z72Wy.png tempImageRUMeQB.png tempImagekwVdAb.png tempImage31xAKX.png tempImageYS5CVM.png
     
  5. John Warner

    John Warner Cruisin' Guzzisti GT Contributor

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    Yep, identical to mine.
    Seems to be fairly universal for most cars, and many Bikes.
     

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