Hi Kenneth.
Thanks mate. There are markings on the underside of the bumper to cut. And it's on the underside so you don't have to be super neat. I chopped it out and sanded the edges down.
I used these 2 videos from a guy on YouTube:
https://www.youtube.com/watch?v=QjeHKWNJoIk
https://www.youtube.com/watch?v=QjeHKWNJoIk
He is fitting a towbar to his A6, which is essentially the same process bar the worm gear mechanism that we also have on the D3.
This thread was useful too:
http://www.audiworld.com/forums/a8-s...ence-part-1-a-
I didn't use the Westfalia electric kit, which would have simplified things, because of the costs. And my brother in law did most of the elctrical side of things, as that's not my forte.
I didn't need to remove all the boot trim, you do have to drop the rear silencers down, two bolts each and bend the heat shield out of the way a bit. The trickiest bit was making sure I didn't ruin trim, scratch the bumper and connectors. And getting the nuts on the underside of the car. Had to have the wife turn the bolt above (after I explained how a ratchet works) while I held the nut underneath.
It is a time consuming job. Prob took 6+ hours of wrenching, the same again to wire it in, cos we didn't use the Westfalia electric kit. The Westfalia kit is superior and will no doubt last forever, so if you already have it or can justify the £200 price I'd recommend it, as it almost plug and play.
Any other questions please feel free to ask. I haven't actually towed anything yet. But fingers crossed it's all wired in correctly.
John.