I had no complaints with my 08 128 vert. Other than typical items fixed under warranty:
Cracking third brake light
Seat belt tensioner recall
Rattling convertible top
Outside of those items it was a good car. I sold it at 40k miles because wife had baby number 3 and she needed a minivan more than I needed a bright red convertible. I wanted to be buried in it .
Keep in mind the 135 and 128 have completely different motors. The 128 has a very reliable n52 motor that is NA unlike the turbo 135. Most of the issues with the 135 involves the HPFP.
I also have a 2009 x3 with the same drive line as the 128 (n52 motor and 6L45e transmission) that has 109k miles on it that has been the most reliable super commuter I have ever owned.
Last edited by x3brian; 01-19-2013 at 08:57 AM.