Consumption A 2 TDI 75PS

Hello *, recently added me a used A2 TDI 75hp, EZ 01/2003, 25tkm. Is equipped with some weighty things (open sky, leather, Bose, 17″ etc.). Although it had expected that the consumption is not at 4.4l (prospekt) but after 2 times refueling with mixed operation (approx. 20%city, 30%country, 50%ab) a consumption of 6.3 liters. Isn’t something wrong?! What are your practical experiences?