I am currently rebuilding the bottom end on my V reg 1.8 Golf Turbo which is going well. The problem I have is that I have changed the main bearing nuts and bolts, however I am trying to find out if I need to change the big end cap bolts (10 of) or not. I know they are a stretch bolt and have looked in the Haynes manual and also on Auto Data. One says you need to change them and the other doesn't say.

I contacted Volkswagen and they do not list the bolts in the parts catalogue, so I tried the technical helpline who could only say look at the Erwin Site which is the technical site for VW.

If anyone can help on whether these need changing or on a part number it would be much apprieciated.