505 SLi radiator temperature switch
  • Register
  • Help
Results 1 to 2 of 2
  1. #1
    Member blizzardboy's Avatar
    Join Date
    Mar 2004

    Default 505 SLi radiator temperature switch

    I have just pulled the radiator out of my 1986 505 SLi wagon to have it repaired. Before I put it back in I want to make sure all goes well with the temperature switch (mounted down on RHS of radiator, above bottom hose). The switch has three connectors (one horizontal, two vertical, say).

    With the ignition ON, I have 12V on the horizontal connector. CHECK. Bridging the 12V to one of the vertical connectors closes the fan clutch. CHECK. Bridging the 12V to the other vertical connector closes the clutch on the A/C compressor - is this the expected result?

    Can someone please enlighten me as to correct operation of this temperature switch setup?


    Thanks in advance for any advice.

  2. #2
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Burpengary and Murrumburrah, Qld and NSW


    Sounds like the wire to the clutch on the A/C is actually intended to close the clutch on the fan...

    So when the A/C is turned on, it turns the fan on. Check if it's live at that end if you turn on the ignition and then the A/C.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts