Did this mod actually work in the winter? I started investigating this yesterday and then as if by magic another post appeared http://www.tyresmoke.net/forum/audi-a8-s8/134612-definitive-guide-installing-auxiliary-heating-your-a8-d3.html with a longer guide. I notice that this thread is old and was created in the summer – How did you get on when the temperature dropped?
The other post suggests that a recirculation pump is required for when the engine is not running. I am not over fussed about heating the engine or remotely controlling the heater just setting it, taking the chill of the cabin and defrosting the windows – If I can get away with a VAG-COM modification only that would be best. Does what you guys have done achieve this? Have you had any problems with it to date? Flat batteries?
I’m mechanically inept so am just looking for if it works and then if I can pay someone to set the VAG stuff – again recommendations on who in the North West would also be appreciated.