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Hydraulic fluid change

In a message dated 96-04-29 15:45:22 EDT, you write:

>Don't know what it would take to drain as much as possible of the 
>system.  From reports on this group, I would hesitate to touch the 
>steering rack hoses.  But you could also disconnect one of the lines 
>from the hydraulic pump, which is about 18" above the bomb and should 
>drain via gravity if air can flow into it as fluid leaves.
>Any better suggestions?

The official audi procedure is to drain, then move steering wheel from lock
to lock, that empties the rack of oil as well....  No solvents inbetween
changes (btdt, PIA), always flush with new fluid only....