No car maker gives away service manuals, and online PDFs would be giving them away.
I'm not sure how but Audi apparently also does not even SELL service manuals until the cars are two years out of production. Even AllData can't supply access to Audi service data until the cars are two years old, and that's by contract with Audi.
So if the OP's Allroad isn't at least two years old...Good luck, you'll have to contract with Audi as an auto repair shop, if they'll even do that for you.
EKTA is not sold to the public for new cars, through any channel, AFAIK
How AUDI gets away with this when this would generally be called "restraint of trade" and illegal in the US, I have no idea.