Oil every year / 10000 miles (tho my mmi always said 9800 in my A4 for some reason). DSG 38-40k miles. Haldex seems to vary but say 25k or every 3 years. Brake fluid 3 years from new, 2 years thereafter (tho that’s disputed as it seem ro be something introduced by manufacturers in the last decade or so, I’ve never done it on my cars). Chains, well who knows. No official interval. Water pump will need doing when it eventually leaks, and if you can afford get a metal aftermarket one as the plastic Audi ones will leak eventually. Plugs is 60k I think. Pollen and air filters every 2 years but easy DIY. It’s mostly in the handbook I think. Find a decent VAG indie if not DIYing. Where r u based?