Hi all my 2005 a3 is in need of new pads and discs, and it seems there is no manual for my model. Im not what you'd call mechanically minded so please bare with me. What tools will i need other than the usual, spanners etc? Is it a difficult job to do (for beginners)? I dont want to put it in a garage as id rather learn myself and save a few pennies too. Thanks in advance.