I know there is heaps on this forum and I've read most of it...... I think I have a different issue. Having replaced my front valve block I have cured my lowering overnight. Now I notice my LH rear suspension is around 10mm lower than the RH rear. No self levelling so not a leak? So..... maybe my suspension needs calibrating? Set the LH rear to +10mm?? Opinions sought from the brains trust....... Regards, Marty

Now: 2008 RRS TDV8; 1975 Rangie ute

Then: 2010 Defender Puma TdCi 110; 1996 Defender 300Tdi; 1997 Disco V8 on vsi gas; 1976 Rangie 4.4l; 20 yrs of back breaking Tojos

I have a similar situation but it's the RH side that's lower by about 15mm. I have tried calibrating it using my IIDTool but it still does it. My next thing to try is replacement of the height sensor as I've noticed that the display shows suspension movement even when it's not moving.

Note: the rear height sensors are handed left and right so if you try it, make sure you get the correct unit.

Oh, and the system will need calibrating if the height sensor is changed. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed