yuca

I m trying to reset my suspension again to 402.Presently the car is at level 1 and when I try the vag com usual instructions to reset the level the compressor works for a little while and the suspension doesn t move;then I get "login lost due to..etc.and error.I get no faults codes except for system hasn t learned...,now the only thing that got my attention is that the air reservoir keeps at 3.25 bars always is this normal?Can t find ref. at bentleys.Could it be that suspension doesn t raise for lqack of pressure in reservoir?Any ideas much appreciated.
Thanks in advance