golf mk5 tdi 105 bhp..........starts ok when cold but once hot it take a good few (around say....5 seconds) to start,ive heard its the starter motor if this is the case,can it be repaired? and how can i tell if it is knackered ,i mean it still works.....what do i do? car drives 100% and starts at the first turn of the key when cold,no faults via vag and coolant temp sensor is ok aswell