Ok several people including me
seem to have a leaking Power Steering Rack so i thought i would show how to remove the Rack ready for repair or replacment.
First get it jacked up and on heavy duty stands SAFTEY FIRST!!! I won't be held responsible if you get squashed!!!
Take off the front wheels
Undo clips or cables ties and slide back the rubber boots (some fluid may come out so put a container under to catch it!)
Using a spanner or big grips undo inner tie rod counter clockwise for both sides
Here they are removed
This is the rack with inner rod removed from it oil leaks from around here
Next get underneith and locate where the steering column meets the rack you will see a rubber boot
Push it up to expose universal joint
Mark the orientation between the joint and the plastic collar (tipex is good for this), then take out the bolt and push/wiggle the joint upwards (it will not come right off at this point untill rack moved)
Undo the 8mm bolt holding pipes to rack
Next undo the hydraulic pipes from the rack pinion (two 17mm nuts), again catch the oil!!
Push the pipes rearwards out the way
Now locate the 4 bolts that hold the rack to the subframe (16mm head 2 per side)
Once these are out move the rack to the nearside to fully remove the lower column UJ from rack pinion shaft, then move rack forword and bring offside of rack down 1st between subframe and engine
Thats all there is too it
Here's mine next job is to clean up and strip down i have located instructions to do this via this link;
Non servotronic ( no elecrical connection to rack)
With servotronic (if it was ever fitted to T4 not sure
Its from a BMW fourum but i think you will find that your rack is listed just check the plate on the rack, as you can see mine is the 7852 type;
All the best, Hope fully will add the strip down here too wish me luck