sprinter

[taztaz]

hi to all
i need some help i have a 2002 sprinter 208 cdi 2.2 the prob is that its lost its power it wont rev over 3000 ?? and struggles to get to 70.. i can hear the turbo !! ive been told its the air mass meter the problem is is that i carnt find the rite part number for it there is a number on it (pa6.6-gf30) but i carnt find nothing ?? can any1 give me any clues.... i dont wana take it to stealers if i can help it any help would be any help would be apreachated
thx taztaz