Ity,
Back in the '90's when I owned a new "94 LWB with EAS the common problem with my truck was the height sensors. I think we replaced over a half dozen in the course of three years. In the first six months the truck seemed to be on it's bump stops every few weeks.
I was told by a tech that I got to know at the dealership that a run of height sensor manufactured during the summer of '93 had an extraordinarily high failure rate. LRNA knew this but rather than replace all four when a truck was towed in for a bad sensor, they would replace only the malfunctioning unit. This made sense to me the first time a height sensor failed but after three or four times I had lost my patience. I complained all the time to LRNA to no avail. Had I not put so much mileage on the truck early on, I would had pursued the NYS Lemon Law.
Besides the height sensors, I didn't own the truck long enough to experience any other EAS failure. However, considering the effect of use and time on most Land Rover electrical components I shudder to think of how reliable some of the main control units would be after tens years on the road. Couple that with the additional expense of replacing an air spring compared to the cost of a traditional coil spring and you begin to understand why people buying these used Rovers rip the old EAS.
I am not an "anti EAS" guy as I was accused of being on another board a few weeks ago. Rather, I think I simply lean towards the more practical side of Land Rover ownership which means applying the KISS principle as often as possible. Thus for me, EAS is an unwanted feature. But, hey, what do I know? I own a Range Rover that's carburetted!
Oh, by the way, in '93 the LWB Range Rovers all had EAS. I think the SWB Sport also had EAS.
Paul