Tool Pants posted a thread over at
www.renntech.org about his experience replacing the coolant tank.
http://www.renntech.org/forums/index.php?showtopic=6675&st=0#
Just as Insite pointed out, I have read elsewhere that the Bentley manual is skimpy on the details on the coolant tank replacement. Tool Pants gets the job done (of course) but I think you will see a whiff of exasperation in getting to the hose clamps.