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Thread: Steering Box Leak

  1. #1
    Join Date
    Jul 2007
    Location
    Edmonton, AB, Canada
    Posts
    762
    My Cars
    91 850i, 07 Jeep SRT8

    Steering Box Leak

    Where could a leak be coming from if there are no visible leaks on it at the top hose connectors (I replaced both when doing upper oil pan). It really looks like its coming from the steering column lower assembly connection to the box itself.

    Only started happening when it got cold outside again.
    CB01718 850i Lagunengruen Metallic / Silbergrau Leder

  2. #2
    Join Date
    Apr 2010
    Location
    La Costa, California
    Posts
    1,836
    My Cars
    1994 850CSi #125
    Check the hoses to the Pentosin container. There's a few, including one that connects right underneath it and you have to use a bent mirror to get a good look. However, I was able to discover leaks there due to a loose hose clamp just by feeling for Pentosin underneath.

    Just double check all those hose clamps first. You might get lucky if that's all it is.
    Taylor in Carlsbad

    P=(p x v3 x Cd x A)/2

  3. #3
    Join Date
    Jul 2007
    Location
    Edmonton, AB, Canada
    Posts
    762
    My Cars
    91 850i, 07 Jeep SRT8
    Thanks for the info. Will check it out tonight!
    CB01718 850i Lagunengruen Metallic / Silbergrau Leder

  4. #4
    Join Date
    Jul 2007
    Location
    Edmonton, AB, Canada
    Posts
    762
    My Cars
    91 850i, 07 Jeep SRT8
    Still unable to find the problem as to where it is leaking from... any ideas where a leak could be coming from on a steering box? The top connectors are all dry.
    CB01718 850i Lagunengruen Metallic / Silbergrau Leder

  5. #5
    Join Date
    Jul 2008
    Location
    Northern WA USA
    Posts
    2,193
    My Cars
    91 850i +++
    The most common leak point is the lower sector shaft seal where the splined shaft exits the bottom of the box. Seal kits are available; contact me if you can't find one locally.
    How come the middle half of any project always takes the most time?

  6. #6
    Join Date
    Jul 2007
    Location
    Edmonton, AB, Canada
    Posts
    762
    My Cars
    91 850i, 07 Jeep SRT8
    Quote Originally Posted by Max Lumens View Post
    The most common leak point is the lower sector shaft seal where the splined shaft exits the bottom of the box. Seal kits are available; contact me if you can't find one locally.
    Thanks, it does look like the leak is coming from the area where the splined shaft exits. Is this an involved job, does the steering box need to come out?
    CB01718 850i Lagunengruen Metallic / Silbergrau Leder

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