afterrun on S2 ABY with RS2 500w fan

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  • Trankelstein
    S2Forum Enthusiast
    • May 2008
    • 119
    • Country: Sweden

    #1

    afterrun on S2 ABY with RS2 500w fan

    Hi

    What is the best solution foor afterrun waterpump and coolingfan when installing an RS2 500W fan in S2 ABY? Right now i have two leads on the plusconnector of my rs2, fan one is red and one slightly smaller is red/black. The afterrun function soesn´t seem to work at all..

    I thought about connecting a series high wattage resistor with the fan and steering the pump and fan via the original tempfeeler, The other solution i have heard about is that many just ignores connecting any afterrun pump/fan which i´m not very comfortable with.

    Thanks,

    Martin
    sigpic
    80 quattro 1984..... S2 sedan 1994

    Zermatt silver......... Brilliant black
  • S2central.net
    Retired OG Mod
    • Jul 2003
    • 16590
    • Country: Northern Ireland

    #2
    Look at www.s2central.net for info on the afterrun system and how to test the temp switch and relay...

    It triggers at something like 110C so you won't get afterrun activated every time you stop the car.

    Also look carefully at the schematics for this - its not trivial and is different if your car has no AC, manual AC or automatic CC system.

    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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