Just got the car with no owners manual! Audi won't tell me they are probably after a service, Halfords was confusing offering multiply choices, they can't all be right. I read that on 2018 2 litre TFSI models different oils were specified and you could not move from one to the other, this might have a US website so maybe not relevant here? On all my other cars in the past I had a Haynes so knew what to do when or choose to have a garage perform the job, currently feel at the mercy of the main dealers who might be tempted to over service.