2000 Disco 2 td5 warning self levelling light

Hi All

Keep getting warning lights on dash, off road ride hight and the self level light, when you switch the ignition on they go off as normal then come back on, if you leave it for about 30 seconds they go off, and if you start it up they go off, this really only happen when left a long time, been looking at the treads for air bag and compressors and have yet to try the soapy water, but theres no sign of leaks, i have just had all fualt codes taken off and just changed the glow plug (this is when it started)

Any help would be greatly appricated

(also put this on the TD5 bit by mistake, first timer.......sorry)

i've pumped them up to full ride hight and done the liquid test but couldn't see any bubbles.... dosn't seem to go down but have measured the hight and will check again later to see if its gone down

found out what it was, checked the ride height at full extent that was 34" when i lowered it and the N/S was 32" and the O/S was 33" played with the height sensor and it lowered, and now the lights are out, job done

Well done matey, got it repaired before I could post