How do I know if I have Ace?

As in title? Sorry newbie question.

probably easiest to look under the bonnet and see if there is an ACE fluid tank, its part of the PAS i think on the right hand side of the engine. Failing that look for lights on start up or look at front anti roll bar and see if there is an actuator attached to it (like a shock absorber)

Hope this helps

Check the container for power steering fluid .
On Disco's which don't have ACE there is only one filler cap ;
on Disco's which do have ACE there are 2 filler caps - the second one being for the ACE . As far as I know this is the easiest way to check .

Nice one cheers Ill check, I thought all series 2 discoverys had ACE!