Autobox leak

  • Had a good blast out yesterday in my '91 850i auto and arrived home with wisps of smoke coming from under the car and a proper burning smell in through the vents.


    Got the car up on ramps and the very rear of the autobox is very wet and so are the exhausts but everywhere forward of there is bone dry.


    Would an over filed box blow oil out or would it be the rear oil seal??


    I know the front pipes, cross member and heat sheild need to be removed but how is the rear seal held in place? Is it an alloy plate that unbolts from the back of the box or is it hoiked out with a screw driver job???


    Anyone know if theres a start to finish instructions anywhere????


    Thanks in advance



    :lol::lol:

  • Before you start, check the connections on the cooler lines are not leaking!
    To change the seal, remove center exhaust section and propshaft. Extract flange from rear of transmission and hook out seal by removing the M20 nut.


    Buy one of these 24111218009


    Squarely tap in new seal and reassemble in reverse order. Top up transmission fluid level.


    Done.


    Beer or 2 .


    8Tech.

Jetzt mitmachen!

Sie haben noch kein Benutzerkonto auf unserer Seite? Registrieren Sie sich kostenlos und nehmen Sie an unserer Community teil!