My 2002 1.4Hdi starter motor has decided to retire! According to the Haynes manual there are 5 different makes of starter motor fitted and depends on model which one fits which. I have had a look on ebay and using the compatibility charts have identified some that supposedly fit. Are there actually physical differences or is it down to the power levels of each motor. I would like to get the replacement in hand before taking the old one off to see what is fitted. The makes mentioned are Mitsubishi, Valeo, Ducellier, Iskra or Bosch.