I was wondering if any of the seasoned diagnosticians could help. Our Discovery 3 is sitting low by about 30mm. Obstruction warning coming on when lowering to access height. Vehicle front lower arms, polybushed, loosened off all the arms of the neck, the front and rear to ensure that they were not causing friction issues. I know my way around vehicle diagnostics pretty well, especially on the Disco 3 and RRS (I use the Land Rover SDD system). Not being alone to change components without having the actual data, proving there is a fault with a component. No fault codes are logged Checked live data on all four height sensors, all seem fine. Checked height sensors for physical issues - no problems found Disconnected battery and left overnight,
I did not find the right solution from the Internet.