Intake air temp sensor issue

CLA 45 2015

Im trying to tune my friend car. but we are having an issue with higher IAT reading . the car never goes below 77c at normal drive. And at wot it goes to 128c.
Any body had an issue like this. I had to decreased the power of the car to avoid engine knock.

I also searched around to see how the IAT of CLA 45 looks like but i can't fine a clear pic of it.
some of the pic i found for Map sensor only but im not sure if the iat interoperate with Map sensor or no.

Where is the IAT location?
How does it look like the one in CLA?
How can i solve the issue of higher reading?


Thank you in advance