FedericoDC

HI!
Please I need some advice!

My Audi TT MK2 2008 2.0 (NON Quattro) got the MIL light On (Small Leak).
I replaced the seal in the Fuel Cap with a brand new one and nothing changed.

After I opened the hood and I think I spotted the problem. (Please see pictures)

It is the vacuum pump right? (Is the part number 06D145100H the correct replacement?)

I cannot find any tutorial about how to replace it, can someone please redirect me to the right link?

I'm not a mechanic and I never did anything like that before, but I think I can go thru it, is it a difficult replacement or not?

Ps: Should I Change the N80 Valve as well (Part number: 06E906517A ) or it should be just the vacuum pump only?

Many Thanks!
Federico