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    Fan relay control

    Does it matter if I use either hi/low fan speed relay if it's an aftermarket single speed fan?

    Right now it's hooked to the lowspeed relay so I can turn it on with the a/c switch
    but not sure if I should use the hi speed relay instead.

    thanks.

    #2
    no. they have the same power outputs and everything. I think even the same gauge wire, but I'm not 100% sure.

    give me your year/model and I'll look at the wiring diagrams if you want.
    '84 318i M10B18 147- Safari Beige
    NA: 93whp/90ftlbs, MS2E w/ LC, 2-Step
    Turbo: ?whp/?ftlbs, MS3x flex @ 17psi

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