it's not compressor, as mine is still doing this even after new one fitted, plus new front height sensors, new front arch wiring etc. I've given up too, as never need to change height settings. LR now saying it may be the rear sensors, sending a false reading to the front, sounds daft to me though.

Try this, do the same thing when moving slowly forward, as mine lowers and raises 100% perfectly when moving, but not at stand still  RR Sport Supercharged Vesuvius Orange 4.2 V8 First edition

Prefer RR Vouge S/C but they don't do Orange !

Or one of the sensors is shafted or adjusted as mentioned previously. Mike

2014 Facelift Discovery

is there any diy scanner programs for land rover ive had bmws for 10 years and have bmw1.4.0 and inpa so can do all my own fauld codes, suspension adjustments etc myself, just need similar for landrover

Blackbox solutions MSV2 I use for d3, d4, RRS

They've just launched a Nanocom version that is much cheaper.  Bodsys Brake Bible
Software Updates Contact me
RRS Timed Heat/Remote kits - Contact me
BAS Engine Re-maps/ EGR Blank EuIII and EuIV
Clock On The Dash/ SNOTM /3Flash / BT Update /Service Reset/Error Codes read\ Gearbox Reset
See it HERE

The air hose is 6mm. If you can't get a fitting, PM me and I can maybe help out.

Cheers,

Gordon 2015 RRS SDV6 SE, Santorini Black, GOE 2-way HS rods, Traxide dual battery, 275/55R20 Nitto TerraGraplers

2015 Discovery 4 SDV6 HSE - GOE 3-way HS rods, GOE underbody plates and sliders, 275/65R18 Courgia MT

Part of the suspension design is that if you're driving and the car detects something under the chassis etc it will raise to extended mode to clear the obstacle.

This is why, when jacking the car, you need to 'lock' the ride height because if you jack under the chassis the car will attempt to rise. If your car is thinking it has hit something as it goes into access mode, (i.e. the bumps stops, or a faulty ride height sensor or because, as mentioned above, someone played with the settings) it will try and go to 'extended'.

Its probably nowt to do with your compressor's performance if it is raising and lowering relatively quickly.