After filling up yesterday I drove 150 miles and on removing the fuel cap there was no noticeable vacuum.

As a new owner I am still finding my way around the car and without the help of a Haynes manual I would be grateful if someone could point me in the direction of the roll over valve and the EVAP system and what to look out for

The car is a 2006 4/4 70th anniversary edition with a 1.8 Duratec engine.

Thanks


2006 4/4 70th Anniversary Edition
2004 3.2 Audi TT Quattro