I dont want to worry you, but a few months ago I detected wet carpets in my 147 while hoovering ... which means leakage. (I have never heard og any leaking 147s, except 156-sunroofs causing wet frontseats). After 14 days of testing, dealer found out that there was some kind of foam missing from the right front wing - causing soaking wet floors. Its pretty easy to fix, and its been dry since. Be aware though.