drcoopster
Adventurer
To anyone with the quadra-lift suspension, dose it self level? If I were to put an ARB bull bar and winch on it will it sag in the front? If so can the dealer re-program the suspension to the diesel or V8 setting to cope with extra weight?
Yes, it's auto-leveling all around just like the LR3/LR4. I can hear it adjust after I get in/out of the vehicle. You can put a bike on a hitch rack and it doesn't squat at all.

Despite the occasional issues I had in the LR3 with the air suspension, it's converted me. The comfort and load versatility—unless you want a big lift—can't be matched with coils.
EDIT: for jacking it up, there's a jack mode that's selectable via the head unit that temporarily disables the auto-leveling. If I need to lift it to get a wheel off, I'll put it in OR2 height and then set it in jacking mode.