Hi there,
the Audi pages is here :
http://www.audipages.com/Tech_Articl...eshooting.html
However that is for the earlier model, without the allen screw. Reading some posts it is quick and easy and others (like mine) are a bitch. It seems the earlier model without the screw is easier.
Also he spliced the cable in as it was cheaper than buying a new sensor for the sake of a wire fault.
Looking at mine, the connector isn't quite on view in the wheel arch as the older model, but is tucked away under the plastic internal arch. A few plastic nuts and it can be bent back enough to disconnect.
Also the cable on the ones with a screw also includes the brake wear sensor cable
I have now spent half the day digging & drilling the sensor out. It has not been easy, but is finaly out. I was worried when drilling some of the plastic that i would damage the rotor, doubly so when i saw copper tones, but no, that is how the sensor is made. There is a big magnetic rod (1" long) and a second domed bit (1/2") with copper windings arround. I know this as i dug it all out and finaly the end cap came in one. Checked the rotor and i hadn't got near with my 1/16" drill bit - tiny and slow, but better than a new rotor.
I've now plugged it waiting for a new bit from ebay. 4D0 927 803 D - The D is for 18" wheels. There is also an E varient for 20" wheels, so in theory if you swap wheels you should also swap sensors !!! Although i guess if they are all the same size wheel the ABS would be fine as it is comparative speeds ?
Audi £152.68, Ebay parts seller £67.49 for a new genuine part, so not too bad i hope - partsdepot_uk
Cya,
Lee