DMF,injectors,fuel pump,rear calipers sticking,front washer bottle pump dying,crank pulley,pulley tensioner...
Can't think of anymore but I'm sure there are,the only problem I've had is rear calipers and DMF.
My tdci is an 03 plate and have to say on a run down to cornwall twice this year has returned not far off 60mpg and it's done 100k
more info here
http://www.talkford.com/topic/57525-...05#entry509805