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.
For 2011 A6 C6 facelift Audi recommends to use: VW 505 00, VW 505 01, VW 507 00, VW 501 01, and VW 502 00 engine oils. To select the right engine oil see the table below. How much engine oil you need to put into 2011 A6 depends on the engine installed, and some other conditions listed below. Engine Oil Capacity (with filter): 5.8 quarts (5.5 liters) Engine Oil Capacity (without filter): 5.2 quarts (4.9 liters) Engine Oil Specification Viscosity: SAE 10W-40, ACEA A2/B2. Audi A6 Second Generation (C5): 1998-2004 . Engine Model: 2.4L V6 Engine Oil Capacity (with filter): 6.6 quarts (6.3 liters) Engine Oil Capacity (without filter): 6 Data close to recommended in Audi. To buy the right oil you need to know SAE Viscosity Grade and API Quality Index oil for diesel or gasoline engine. You can select any Brand from the listed. Example: for gasoline engines Audi A6 (C6) 2004, suitable multigrade semisynthetics oil 10W-30 quality SN. . 229 220 219 397 748 358 401 604