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Thread: Oil Pressure Switch

  1. #1
    Join Date
    Apr 2015
    Location
    Spotsylvania, VA
    Posts
    3
    My Cars
    2004 645CI

    Oil Pressure Switch

    Does anybody know the torque specifications for the oil pressure switch? I currently have it at 20 ft\lbs but it still has a slow leak. I don’t want to crank it on and risk breaking it off

  2. #2
    Join Date
    Dec 2015
    Location
    UK
    Posts
    14
    My Cars
    04 BMW 645ci
    You have it at the correct torque value, might be worth removing it again to check the o-ring hasn't been pinched and letting oil past it as it was done up, before you do that though double check it is indeed the pressure switch that is still leaking and not the vacuum pump, if this leaks it will go down and coat the pressure switch making you think it's the switch and not the pump.

  3. #3
    Join Date
    Jan 2007
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    Did you put on a new sensor? They leak internally and oil comes out the connector. No amount of torque will seal it because the leak is not at the crush ring.

    Sent from my Pixel XL using Tapatalk
    ASE and BMW Master Certified Technician

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