I did mine the other week using a sealey oil pump so didnt even have to jack the car to empty the oil out, just put it in the oil dip stick blank off and pumped the oil out.
What engine is yours as oil capacities and others parts may be different?
For sure you will need:
-19mm spanner for sump
-little star head alan keys for undertray I think, standard in the most tool kits
-32mm low profile socket for oil filter
-FOR A 2.0 TDI 170 !! 4.7 litre capacity of 5w 30 which is the same oil used in the rs4 and allot of other models, but double check yours first. Also Quantum oil is the same as Castrol (made by the same company, same quality, just labelled different for cheaper sale to vw and audi service teams)
Dont want to give you the wrong advice if you have a different engine tbh. Lots of videos on youtube if you search by engine.