Re: cambelt failure
since we are talking varaitors, i got mine changes 10 months ago under warranty as i was getting the diesely sound for a couple of seconds on startup. I was well happy because this included a cambelt and tensioner change for free at just under 3 years old. Just recently i noticed the sound coming back so i recorded the noise on my phone and played it at the dealer, and thankfully i have just had everything changed free of charge again.
Now i can certainly confirm it effects performance- i was shocked when i got the car back last week, it has loads more torque at low revs, so much more responsive and has a real surge of power now all the way to 7000 rpm. Also ive noticed it is running a couple of mpg improvement as well, a very happy person indeed. What im gonna do to help preserve the variator is to get the oil changed every 6 months