After 8 months of ownership I have finally traced down a boost leak, which hopefully is the cause of the 0.6 Bar max reading. I found the boost leak test on the USA forum-
Spent all day changing the oil and searching for the dam thing.
Just found it Well chufft”- Gfriend didn't understand what all the excitement was all about but I am sure you guys would understand.
Hopefully when I put the air intake back together, all will be fine.
Keeping fingers cross.
The leak was from the small pipes attached to the EGR thingys on the throttle body at back