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What Is This Part?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by WALTO TDI, Aug 18, 2014.

  1. WALTO TDI
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    WALTO TDI Member

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    [Aug 18, 2014]
    hi i am wanting to find out exactly what this part is and does on my 2.0 tdi BKD engine?
    [​IMG]
    the part in the middle of the pic that has bosch written on it and 8 bolts holding it on?

    cheers
    #1
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  3. SmithyAG
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    SmithyAG Active Member

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    [Aug 18, 2014]
    Tandem Pump.(Fuel/Vacuum).

    It pumps fuel to the injectors.

    It creates vacuum for things that need it, so brakes, turbo, EGR.
    #2

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