I noticed on shut down you could hear my turbo winding down. It progressively got louder and more coarse sounding until at 80000k it let go-sounded like a circular saw. My car was nearly 3 months out of a 12 months extended dealer warranty (4 years total warranty from date of manufacture in total). I approached them to fix it under warranty as I have never abused the car and always had it serviced by them, to which their reply was they would check with Ford. To my surprise it was accepted. Now the second turbo has let go 3 months into its life. You should really give things a go with your dealer you never know what they will do??? A car even 4 or 5 years old with low km's should not have its turbo blow-especially if it has been serviced regularly.