Hello all well I've had a Range Rover sport 2.7 already had the dreaded handbrake issue sorted that out thanks to the help on forums only had her 4 week cam belt done oil filter oil air filter diesel filter now air suspension playing tricks can anyone advise me please never owned rr before dropping to access height at night today I've soap tested front rear valve blocks it's got brand new compressor as is rear valve block tested all air bags and reservoir ( long cylinder) all ok no bubbles I've seen on forum that you can take front valve block apart reseat seals clean it up my question is do you have to remove a fuse before you disconnect wireing from valve block thank you all in advance for any advise p.s she's been neglected big time going in for paint in two weeks get her looking good again thanks once again bullnogger

What is the symptom you're trying to diagnose? "Playing tricks" doesn't give us much to work with...  2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

When parked up at night passenger side front is first leg to start dropping then driver side then rear within 4 hours front is down to access height I've soap tested everything today not a sign of anything leaking it's always front passenger side that starts to drop first I park on a drive that has a small fall to one side so vehicle is leaning towards front passenger wheel I would of thought driver side would come down to try and level vehicle up I've reversed in tonight so it's back driver side wheel at lowest point just been out to check after being parked for 2 hours not budged all wheels same height will check in morning 3 am before I go work see how she's sitting thank you for your reply

First thing to do after your test tonight, is to remove the EAS fuse when you next park up in the normal way. If it still drops then it's likely a leak. If it doesn't then that suggests a height sensor possibly. If you sit the car on a level bit of tarmac and select access height, does it go down? Does the 4x4 info screen show any red bars above a wheel?

It might need a sensor, a valve block or just a calibration. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Thank you for your advice looked at it 3.10 am hasn't moved an inch will try what you have said this weekend as I work away
It seems strange two things I have done different for first time and it's sat all night without dropping
1 reversed in so front passenger side wasn't at lowest point
2 didn't lock it as I've read you can use fob to alter height anyway very much appreciated for your words of advice thank you once again