ok thanks guys for you help.;) i will get it looked at straight away

i've noticed a pipe leaking from a rubber hose above the rear diff that looks like they go to the rear shockers. is this the apart of the ace system? whould this cause the light to come on if there's a leak? is there any common faults with the ace system and how much would it be to fix?

ok thanks for the reply's. so is it ok to run the ace unit set up with springs? or should this be removed and fit a arb now there's springs fitted?

which is the showing a picture of the rear end and arrows either side. sometimes it is orange and some times its red.

hi everyone, i'm new on here :) i have just bought a 2001 discovery td5, its had the rear airbags removed and springs fitted. what i need to know is there a way of disconnecting the ace unit so the light does'nt show on the dash?