If there's any variation it is usually the cost of the oil. Some indies have to pay a higher price than Audi who gets the bulk discount. On the flip side an indie will use new oil from bottles whereas an Audi dealer might draw it from a central tank where some unused oil might have been put back in and there is a small risk of contamination.
How dare I suggest that! Next I'll be alleging that Audi might fake the results of emissions tests!
Hi mine car is 3.0 tdi saloon 2014 with s-tronic auto clutch and oil change cost me about 215£ 7l of oil 20£ a liter some oil strainer, gasket, washer, plug, suction filter and sealing ring replaced...
Price is approximate +/- 5£ due my mechanic list prices separately with no vat... And that what he listed as replaced so I just write of the service log and roughly counted. :d hopefully helps