307 D Turbo power loss

Hi Guys,

ive had my 2003 307 D Turbo for 1 month now, it has been working fine until now. it has suddenly lost power - no indication on the onboard screen. i cant get over 70-75 on the motor way and loose power rapidly on an incline.

ive put in diesel cleaner, and had the glow plugs changed. still the same. i dont know if the turbo has gone,

does anyone have any ideas? ?

cheers

vim