You're forgetting about the sensors of both ride height and pressure required for the active height control along with the controller. If you don't appreciate the complexity involved with active pneumatic control then it's unlikely you will understand.
I have designed and implemented servo pneumatic control systems in industrial applications, they are extremely difficult to program and control.
I'm not forgetting anything. All I'm saying is that Rover was not the first to implement systems of this kind in passenger vehicles (to your bleeding edge comment), and when they did it, they still F'd it up. Mercedes has had full air suspensions since the 60s. They've had ride control and automatic and adjustable ride height control since at least the 80s. I agree that it was thoughtful of Rover to add such a system, but don't call it bleeding edge when it simply wasn't. Rover likes to say they are the first in everything, but that's just not true. For example, they claim to have "introduced" coil springs to trucks in the 70s, when everyone else still had leafs. But Mercedes had been putting long-travel coils on light, medium, and heavy duty trucks since at least the 50s. Again, I acknowledge that Rover produces highly capable vehicles, but please don't characterize them as something they are not. I mean, Christ, the Rover V8 used in the Range Rover up until the Mk III (2002) is essentially the same old Buick engine from the early 60s!
I understand it would take a sensor to die or air loss to drop the vehicle. Strangely the people I know who own such vehicles haven't had this happen.
If a code is thrown, removing the ECU is not required. If you've been told that then your source of info is highly suspect.
Strangely, the people I know who own such vehicles HAVE had this happen. I don't know if they had to reprogram the ECU or not. That bit was just something I had read anecdotally, so long ago I don't even remember where. It might have even applied to a different generation (like a Classic with only the rear auto-leveling airbags).
Compressors have electric motors in them. Hitting with a hammer often works on seized electric motors regardless of brand or application. I've helped toyota owners do that to their starters in the past.
Not all of them. The air compressors on my Unimogs are engine-driven. They feed the air-assist brakes and the onboard air system. So are the Yorks out there that a lot of guys run for onboard air. So, too, are most if not all commercial applications.
The defender rides on the original rangerover chassis and suspension, many of them are fitted with aftermarket airbags for offroad trials. A rangerover of any era will beat any 100 or 200 series landcruiser offroad easily. I know because I've been there.
Stop putting words in my mouth. I never said anything about the 100. OEM to OEM, I agree that a Rover will probably beat a 100 off the pavement (marginally). As to the 200, you say you have seen this comparison in action. Please elaborate, as that is the kind of information this forum is looking for.
Again, many of us choose to buy Toyota over Rover for many reasons. You seem hell-bent on elevating Rover to the detriment of Toyota. Maybe you're a troll?
Who knows, maybe I'll have one some day. Like I said, I like the marque and respect the vehicles, but based on their reliability record, it may have to be a lease. Their current offerings are not what I would personally characterize as long-term purchases. Maybe I'll get a Mark II instead, and swap out the airbags.

They're certainly cheap enough (see comments above RE: resell value). Holy S#!t, I just checked Autotrader and I can get a 2001 4.6 HSE for less than $14K U.S.!!! That would be a great, cheap base for building a nice expedition rig.
An 80 series with front and rear difflocks can go further than a rangie without traction control or difflocks.
Agreed.
KDSS is a toyota copy of the active swaybars implemented by landrover in their 1999 discovery series II.
Not true.
Ultimate onroad? Of course not, it's a 4wd FFS!
Their marketing to the contrary...
