sorry L322 SUSPENSION FAULT

L322 tdV8 07 PLATE ANY HELP PLEASE I have read nearly every thread on EAS i think but just cant find same symptoms as mine or if i do they dont say if fix worked. I have two new front airbags fitted working fine one day then motorway drive on 2nd day and suspension fault front end lowering.i had roadside ass he plugged in telling me something not comunicating cleared fault suspension raised i drove home without stopping 150 miles.Following day short trip and 5 min bing bing suspension fault front end lowered. since then diagnostics heights recal pumped up battery disconect left on ramp 3 days no problem did not sink .reconnected battery and drove out of garage 5 mins later everything lowered again but no faults ???? starting to loose the p[lot any help appreciated thanks Andrew