Yes, I know it's not an Audi.
With hosepipe bans still in place, in a few places, including here in (sunny, yeah right!) West Berkshire I've been dabbling with Optimum No Rinse. Rather than repeat what it is (I'm sure many of you already know) have a Google. I'm sure you'll find some links on Detailing World.
So this is our VW Jetta a.k.a. the family transport. It's generally a bit neglected. The most recent brush with detailing its had is a quick once over with Auto Finesse Tripple last month. Prior to that its had nothing but washes. So anyway, this is the result of ONR only. No QD spray after, no nothing but ONR. I pre-sprayed each panel from a 2L pressure sprayer made up with 30ml of ONR and the rest water. I used the 1BM with 50ml ONR and 10L of water. That's it. Here's how it looks.