The oil should not be changed before the first 5K service. VW uses a special "break-in" oil, and it needs (at least) the 5000 miles to properly seat the rings. In Europe, VW delays the first change until over 10000 miles; while they briefly suggested a 7500 mile first change in the US in the mid 1990s, the policy apparently didn't meet the approval of the typical US consumer accustomed to the 3K oil change ritual.