S6 Thermostat

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  • BootyRallyrep
    S2Forum Hobbyist
    • Oct 2008
    • 14
    • Country: United Kingdom

    #1

    S6 Thermostat

    This may sound a tad silly and I know my way around a Kv engine like the back of my hand but....where is the thermostat on the AAN 20v engine on my 96 S6? Or am I missing a trick. Looks tight wherever it is anyway. The temp gauge always shows cold unless in traffic when she climbs nicely to 90degrees, also the climate never really blows hot so I assume the thermostat may be sticking or jammed? Any ideas folks??


    Rich.
  • S2central.net
    Retired OG Mod
    • Jul 2003
    • 16590
    • Country: Northern Ireland

    #2
    Its on the UK passenger side of engine... See the inlet manifold... There is a water rail below that where a link pipe extends to a housing on the block for the thermostat. On the housing is another pipe that links to the main radiator. It is quite hard to see as there is a lot of gubbins in the way. Your problem does sound like a 'stat that is stuck open.

    Its so long since I had the KV engine that I can't remember if its in the same place as AAN - gut feel tells me that it should be - its essentially the same 2226cc block.
    Paul Nugent
    Webmaster http://S2central.net
    Administrator http://S2forum.com

    1994 S2 Coupe ABY - aka Project Lazarus
    2001 A6 allroad 2.5TDi - family tank
    2003 S4 Avant 4.2 V8 - daily burble

    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

    There are only 10 kinds of people that understand binary - those that do, and those that don't

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    • BootyRallyrep
      S2Forum Hobbyist
      • Oct 2008
      • 14
      • Country: United Kingdom

      #3
      Thanks for that Paul, I'd better roll me sleeves up and have a look. Will post back when sorted.

      Comment

      • merlin's S4
        S2Forum Extremist
        • Jan 2005
        • 1539
        • Country: United Kingdom

        #4
        Link to S4/S6 thermostat replacement guide... http://forums.audiworld.com/showthread.php?p=18848059
        '93 S4 Avant now back on the road complete with new shiny go faster bits.

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        • rotoryboy
          S2Forum Possessed
          • May 2004
          • 3281
          • Country: United Kingdom

          #5
          Might be the MFTS
          Mark

          Race Clio RS197

          S2 Coupe ABY (Green) - RIP
          S2 Coupe ABY (Blue) - Sold

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          • BootyRallyrep
            S2Forum Hobbyist
            • Oct 2008
            • 14
            • Country: United Kingdom

            #6
            Well....bent me fingers at right angles this morning and removed the thermostat cover and prised out the old one. Fitted the new one and..........voila. Needle rose to 90 degrees after a few minutes, the climate blew hot air properly ( and I mean hot air ) for the first time since I had her last November. And, dare I say it, but she seems to be running better, smoother really. The best thing is that I drove from Stoke to Cannock on the M6 this afternoon and averaging 75mph we were running at 31.04mpg. Bloody brilliant considering the size of the car. Thanks everyone for the pointers.

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            • UrS4boy
              S2Forum Obsessed
              • Feb 2006
              • 11859
              • Country: Canada

              #7
              Originally posted by merlin's S4
              Link to S4/S6 thermostat replacement guide... http://forums.audiworld.com/showthread.php?p=18848059
              Always nice to have a DIY. Here is the real thermostat DIY start at UrS4/S6 Audiworld forum:

              http://forums.audiworld.com/showthread.php?p=18920207


              UrS4S6 owners might want to check out the FAQ (best viewed in threaded mode) at:

              http://forums.audiworld.com/showthread.php?t=2166571

              Personally, I especially like the Engine Bay Device Map and all its links:

              http://forums.audiworld.com/showthread.php?p=18945405
              RS2'd 93 UrS4 5 spd sedan
              94 UrS4 V8 6 spd manual avant

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