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What does that knob do?

Discussion in '348/355' started by Coolhand, May 5, 2008.

  1. Coolhand

    Coolhand Karting

    Mar 30, 2007
    193
    Overland Park Kansas
    On the F355 tachometer there is a knob similar to the trip odometer reset knob located in the speedometer. The knob in the tachometer appears to be functionless to me. Does anyone know what this knob does or why it's there? (At least my 1999 F355 GTB has this on it's tachometer. I don't know if all F355s have this knob.) I can't find anything in the owner's manual referencing that knob.
     
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  3. f355spider

    f355spider F1 World Champ
    Rossa Subscribed Owner

    May 29, 2001
    17,178
    USA
    Full Name:
    Hugh G. Rection
    Reostat for the dash illumination.
     

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