Had to change the air con/auxillary electric cooling fan in my A6, it burnt out and the car has been close to overheating a couple of times. Got a new one from ebay, thought it would be a 10 min job to unplug and replace it.. apparently not.

Undertray off:

IMG_2639 by Adam Woodford, on Flickr

Bumper off:

IMG_2642 by Adam Woodford, on Flickr

Front into service position:

IMG_2647 by Adam Woodford, on Flickr

Its in there somewhere!

IMG_2648 by Adam Woodford, on Flickr

Job done, nearly 4 hours!

Put undertray back on, leave the front bumper off and whack a MadMax style Bull Bar setup on the front with some big ass spotlights! 

I've got a similar job to do, the thermostat on my a4 is stuck open. complete front end off job, audi dealer said it takes them over 8hours

found a pic of someone doing the job.
http://www.flickr.com/photos/whiskymac/2787045783/in/photostream/

new cars are a pain in the ass to work on :-(

8 hours at a main stealer to change a thermostat ?  I could single handedly change the engine in an old transit van quicker than that !