Years ago, after my warranty ran out on my A6 Avant I decided to do my own oil change, What a chor to have to remove the under tray just to change the oil. I decided to do something about it, so I cut an access hole in the under tray. Oil changes are now so easy. At Audi, the A6 model C6 has a long-life interval of 30,000 kilometers or 24 months, whichever comes first. Your on-board computer or the service booklet will show you when the next oil change is due! What Engine Oil For Audi A6? Every engine oil will have its viscosity grade labelled on the packaging. Audi A6 (C7; 2010-2018) engine oil capacity and change interval. 03.21.2022. Considered cars Audi A6 fourth generation ( Typ 4G; C7) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 model year. Change interval: 15,000 km / 9.000 miles / 12 months. A6 / S6 (C6 Platform) Discussion - Trans, diff and transfer case fluid change - Decided to start a new thread to consolidate wisdom. I have done a lot of reading already, but could not find a good pic of where the drain/fill plug is for the front differential on an A6 quattro system. Transfer case: Audi A6 and A4 cvt automatic transmission oil change. how to change from where it fill and location of transmission filter. 10.5 litre total oil change in au Audi A6 engine oil capacity. Engine: Engine Code. A sequence of letters and numbers. This includes the engine block type and engine family, but may also include other information. Capacity: Capacity/Filter capacity in litres (liters). Engine oil fill quantity (Service fill). Intervals: Oil Change Intervals (use: normal). Audi A6 C6: How to Change Oil Step 1 - Jack up the car. Use your jack to raise the front of your car, enough that you can fit under it, then secure it Step 2 - Drain engine oil. Open the oil cap on top of the engine, then slide under the car and locate the drain plug on Step 3 - Replace oil qmL4Z.