1.6 tdi Charge air temperature

[Jraut]

IDE00556 Outside air temperature -3 C degrees
IDE00348 Intake air temperature + 9 C degrees
IDE04003 Charge air temperature sensor B1S1/B1S2 73/69 C degrees

Here are the measured temperatures when driving on flat ground at a speed of 80kmh(50 mph). I think those charge air temperatures seem high. Would anyone give a temperatures to which I could compare ?
When driving uphill, the charge air temperature rises up to 100 ° C and engine reduces power.
My car is a VW Golf 7 1.6 tdi (clha). No fault codes

 

[iichel]

Is this a car with a water/air or an air/air intercooler?

 

[Jraut]

Is this a car with a water/air or an air/air intercooler?

There is air/water intercooler adapted to intake manifold.
The charge air cooling pump is working fine. I tested it with vcds