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Thread: 540i hydro unit ?

  1. #1
    Join Date
    May 2005
    Location
    central coast nsw au
    Posts
    1,221

    Default 540i hydro unit ?

    hi there all. just new here so i hope to get it right to be where this should be. i have a '93 540i shadowline,pics soon. does anybody know about what ive been told is a hydro unit. located in the left rear top of engine bay. Its got a slow leak and im told its a sealed unit and about $3500 au to repalce from bmw. Can a tape product be put around it for now? it leaks power sterring fluid so i know its not brakes but parts sites semm to call this a hydro unit.

  2. #2
    Join Date
    Jan 2004
    Location
    Tampa Bay, Florida, USA
    Posts
    900

    Default HYdro Unit

    Might it be your power steering reservoir?

    Here's a diagram for reference:

    http://www.realoem.com/bmw/showparts...80&hg=32&fg=20
    Ramon
    1994 540iA Nikasil EAT Chip
    Tampa Bay, Florida USA

  3. #3
    Join Date
    Jan 2004
    Location
    Tampa Bay, Florida, USA
    Posts
    900

    Default

    I'd check all hose connections first, as these run very close to the exhaust mnaifold and degrade rather quickly relative to the rest of the hoses.
    Ramon
    1994 540iA Nikasil EAT Chip
    Tampa Bay, Florida USA

  4. #4
    Join Date
    May 2005
    Location
    central coast nsw au
    Posts
    1,221

    Default hydro

    thanks for the diagram ramon, ill go and have a look at it now.

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