Audi A4 B7 2.0 TDI BPW Engine: Max Oil Pressure, Warm Engine, 2k RPM & Turbo Oil Exhaust Issue

Hello
I have a question what is the upper limit of oil pressure in 2.0 bpw engine? With the engine warmed up and 2 thousand. revs the car has about 4.5 bar. I ask because the car was made of turbo oil went to the exhaust, not the collector. I know that min. abroad, and max?
best regards

It cannot exceed 7 bar high and at 2000rpm a minimum of 4 bar is to be stable, as I remember correctly.

Just books say 2 thousand rpm 2 bars

data from Elsa ... for 2.0 TDI; BPW
checking conditions for oil pressure;
- the oil level is correct
- engine oil temperature approx. 80 degrees

idle oil pressure: min. 0.8 bar
oil pressure at 2000 rpm. : min. 2.0 bar

service program Nothing about max. oil pressure, however
it is worth checking during oil pressure measurement whether it is noticeable
the moment of opening the oil pump "overflow" valve ... if such a "moment" can be
notice this indicates that the "overflow" valve is working correctly
in short; oil pump Ok ... of course provided the required requirements are met
min. oil pressures at individual engine revolutions, as listed above ...

Thank you for the info