Connectors!

The wiring to my starter motor is a bit shank, it has no clip on connector, therefore it falls off a lot. Really good.

So how do I get hold of the standard single connector that clips to the housing? Are there aftermarket ones? Or is it a VW only part?

Try funk-star

Which wire falls off?
If it's a female spade connector you can very gently squash the edges with pliers so it's a tighter fit.

Looks like this
http://www.ebay.co.uk/itm/50-Blue-Female-6-3mm-Spade-Connector-Insulated-Crimp-Terminals-Electrical-Wiring-/290850942488?pt=LH_DefaultDomain_3&hash=item43b8112e18