It's been a very long time ago but this is what I recall have you downloaded the
service manual from Erwin for the official values.
Dsg oil
service is different depending on which box you have
The DQ200 7 speed is a dry box and it used to be no change on the mk3
The DQ250 6 speed was 60k km or 37k miles
The DQ381 7 speed is now on 70 or 80k but many people recommend 40k
The 4 wheel drive cars need filter cleaning