A6 4A (1994-2023) Engine: Capacity: Change interval: Oil type: A6 1.9 TDI (66 kW) 3,5 L: 15000 km/ 12 months: 10W-60, 10W-40, 5W-40, 15W-40, 5W-30: A6 2.0 16V: Filter capacity 0,5 L, 3 L: 15000 km/ 12 months: 10W-60, 10W-40, 15W-40, 5W-40, 0W-40, 5W-30: A6 2.0: Filter capacity 0,5 L, 3 L: 15000 km/ 12 months: 10W-60, 10W-40, 15W-40, 5W-40, 0W What is the oil capacity of it when filter is changed. I did a search and 1 poster (sorry I forgot who) said 6.9 quarts I believe. I didnt get a manual, dealer said he would get it to me . I pulled out 8 quarts by the way. I had asked dealer to change the oil at my cost before I picked it up since it had about 6k miles on it. Audi engine oil capacities. Audi A1. Audi A2. Audi A3. Audi 80. Audi 90. Audi 100. Audi 200. Audi A4 1994-2001. CHWZ.