You can order the A4 B7 and A4 B6 Cabrio with an OEM tire pressure system (~250 $US or Euro). It requires special valves which communicate with one or two CAN-BUS connected receivers. For the B7 you can tell the RNS-E via VAG-COM that the tire pressure system is installed which then allows you to select CAR and check the tire pressure. In cars without the RNS-E, the tire pressure is shown in the DIS via Check Control.
Not sure if anybody tried to install this in a B6. Looks possible if you are willing to spend some $$ (I would estimate about US$500) and get all the components.
If you open loading.kwi with a hex text editor (don't use Notepad or Wordpad!!), you can see that there are messages concerning tire pressure. I would assume that all RNS-E are able to talk to the tire pressure system if properly installed.
Not sure if anybody tried to install this in a B6. Looks possible if you are willing to spend some $$ (I would estimate about US$500) and get all the components.
If you open loading.kwi with a hex text editor (don't use Notepad or Wordpad!!), you can see that there are messages concerning tire pressure. I would assume that all RNS-E are able to talk to the tire pressure system if properly installed.