I have a problem with the suspension stuck higher that I request it.

It thinks it has come a ground but it hasn't.

Seams to be the rear at fault.

Is there a common fault which causes this exact issue?

Oh and I get a suspension over heat message on the dash sometimes.

Thanks

Ride height sensor (look at the 4x4 screen, it may indicate which one it thinks is stuck)
Wiring
Ride height needs calibrating if no sensor fault
Compressor overheating is because a) it's probably tired b) having to keep go into off road height is overworking it, so it gets too hot 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

Blocked dryer also fits.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thanks Guys

Yes the system has been complaining about the rear right.

Is the dryer part of the pump assembly or the valve block which I understand is in the front wheel arch ?

With the pump, but sounds like you've identified the issue anyway.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

So you think its a sensor issue ?

Does anything mechanical go wrong with the "suspension airbags things" causing it to get stuck high?

If you've been having trouble with that corner, then yes, probably a sensor/calibration issue. Airbag leaks can sometimes occur as they age, but otherwise they don't seem to give trouble.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver