I've been searching on here for a while now as I am about to do MFSW conversion on my new car. Lots of highly knowledgeable folk in the forum
I have a 2007 (57) 2.0 TDI (140) DSG S-line. It came with DIS, phone prep and cruise from the factory.
There seems to be a lot of discussion as to exactly whats needed for the MFSW conversion. I am still confused!
Things like slip ring, ABS harness, SW controller etc. I wanted to post my situation to see if I can get some clarification from you guys/girls as I'm still not 100% sure. I know there are lots of relevant threads but I think that the info I need is spread across these discussion so wanted to consolidate it here if possible. May be useful to others too with a similar age car to mine.
There also seems to be 2 types of 3-spoke steering wheel with the square airbag; one with ABS plug about 2 o'clock and one with ABS plug about 5 o'clock. Also there may be differences in the airbag fitment. I'm not sure exactly which wheel I have (I havent removed airbag to look) but took a punt and bought one recently from a 2011 A3 S-line because it was mint. It has DSG paddles and silver surrounds for the MF buttons. I intend to try fitting this weekend using my existing airbag but if it turns out to be incompatible then I will have to sell it and hunt down the right type.
Before I start removing things, does anyone know the likelyhood that I will have all the relevant electrical bits already or not? Will I have the steering wheel controller? Its not a job I can do all by myself so I have to get a friend to help (He's an Audi tech, but has no experience of this conversion) and I dont want to waste his time if its clear to someone on this forum that its not going to work. He will code and calibrate steering angle for me etc.
I currently have the 3-spoke DSG S-line wheel with square airbag and red/silver stitching. Is this a dual stage airbag or could it be single stage? Is the airbag harness different for a MFSW irrespective of whether I have DSG/cruise/phone already?
Also, I found the MFSW page on the RossTech site but the coding seems confusing;
Audi A3 (8P) Steering Wheel - Ross-Tech Wiki
Code 00x?xxx : Steering Wheel
There's no option for 3-spoke, with Tiptronic, with Multi-Function. So, should I set this to '1'...
Code 00xx?xx : Tiptronic/Heating
...and then set this to '1' also?
I read on here also about coding Address  for Navigation as well when doing MFSW retro but I only have Concert head unit so assuming I wont need to change this.
Lots of questions there so thanks in advance!!!