To change the oil in an Audi A6, jack up the car, pull the oil drain plug, drain the old oil, remove the old filter, replace the old filter with a new one, and refill the oil reservoir tank. To complete the job, you need six quarts of synthetic 5W30 motor oil, a new oil filter, a filter wrench, a Philips screwdriver and a car jack. You also need an oil pan to catch the spent oil as it drains.
To begin, start the car's ignition, and allow it to run for a few minutes. This warms the oil and lets it drain more efficiently. Place the car on a ramp or use a car jack to jack the car up off the ground and gain access to the oil filter and the engine oil drain plug.
Use the screwdriver to remove the cover to the oil filter to gain access to the filter and oil drain plug. Position the oil pan to catch the spent oil under the drain hole, and then use an adjustable wrench to remove the oil drain plug. Allow the spent motor oil to flow out into the oil pan, giving it a few minutes to adequately drain.
After the oil drains completely, use an oil filter wrench to remove the oil filter. Replace the old filter with a new filter, and reposition the filter’s cover. Pop the hood, and find the oil reservoir. Add the new oil to the reservoir to finish the oil change.