Sounds like it is still within spec, .7 bar as an acceptable low oil pressure. It should peg out a little earlier though.
Have you checked the pressure with a different gauge? Maybe the gauge is failing. When was the last oil change?
Check out the little stuff first.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.