This is a video DVD given to new Range Rover owners by Land Rover North America. It explains how to operate the vehicle and also contains chapters on Range Rover history, it's technology and off-road driving.
You need to change your garage... They obviously don't know what they're doing. You have a pump. A valveblock. Pipes. 4 height sensors. 4 air springs. Very simple. Often misdiagnosis is the biggest problem.
