there could be any number of things that could be your problem but on the 1.3 cdti usually the first thing is to check far fault codes, but none quoted so I would check your valve timing first,bad for chains going on these, heater plugs,filters,crank sensors are all worth a look too,can you hear the primary fuel pump in the tank? If no fuel pressure then it won`t go,good luck
cdc
April 2015