A bit late I know as you have probably gone by now but a few months back I flushed and replaced my PAS hydraulic fluid. I used Granville Central Hydraulic Fluid (CHF). It (according to the blurb) is for "power steering, central hydraulic and suspension level control units and suspension level control units as specified (amongst other cars) Audi, and meets the requirements of:
ISO: 7308
VW: G002 000A2, VW TL 52146.00 & G004 000"
+ other manufacturers.
I would also investigate why the level has dropped. 
__________________
2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
|