Great news!
So your car is just a 135i without idrive? What year? I also don't have idrive...
Will be interested to see what it takes to get the FTM to show up and calibrate correctly for a non idrive car.
The other X3 post I found is here:
http://www.bimmerfest.com/forums/sho...d.php?t=856574
ianc
Edited to say: Looks like RDC is actually the German abbr. for TPMS now that I take another look at that last link? Reifen Druck somethingorother?