Located in Auckland.
In 8-9 years of ownership I have fixed a lot of things on this car and thus I have quite a few spare parts up my sleeve, mostly used engine sensors that I have changed prematurely (working when removed). Willing to help out local URS4/6 owners with some of those weird engine faults before you take it to a mechanic who knows nothing about these cars. I have just about every engine sensor spare.
I can help with diagnostics / fault codes, you can pull these with a paper clip before you start swapping sensors. Then if you want to test a sensor before you buy a new one, I may be able to help for a small mileage/beer fee.
I have factory coils / POS and harness. Spare ECU to test (for a fee). When these go you may not get a code.
PM me for advice, or try quattroworld.com/s4s6 for expert advice, or s2forum.
My motivation is that I would like to help keep the few S4/S6 that are in New Zealand on the road and out of the vultures hands.