are you using a genuine cable?
i coded a 686E unit without any issues
I will be honest with you; I do not know as I have borrowed the cable, but considering the issues I am facing it would seem it's not. Now that I know how useful VCDS is I will probably buy my own cable anyway, but that will have to wait until next month and then there is a few weeks delivery time. I was hoping I wouldn't have to wait until then to get my bluetooth working...
You say you can't get the car to recognise the Bluetooth. Has the car actually got Bluetooth fitted, because the RNS510 doesn't have it.
Originally the car came with a factory fitted telephone preparation control unit (1K0 035 729 E), phone cradle and a bluetooth adapter (7L0 051 435 PA). This enables the use of microphone and speakers for phone calls and was working fine with my old unit and also after upgrading to RNS 510, but it doesn't integrate with the head unit in any way. I have now removed that to install a 9WZ. It came complete with a wiring harness and a FIS-LINK adapter to overcome the issues with red instrument cluster and battery drain. Here is the link:
http://www.ebay.com/itm/321366784922