Changing a vw starter?
no its kind of easy you'll need
1.metric 3\8 ratchet and socket set
2.disconnect battery negative terminal.
3.set of metric wrenches.
4.small jack and stands.
5.good drop light.
6.most auto part stores will test it for free once removed.
7.they will also test and or charge your battery for you.
Changing a vw starter?
Starters generally are quite simple. First thing.....disconnect the battery clamp(at least the negative post).
Most VW's are worked on from the underside when parts(or the engine) is installed. Use metric wrenches....10,13,15,17.
As was mentioned, the parts shops will bench test the starter to see if that is the problem. (More often than not, it is a weak battery.) 3 wires tops. Big and small. Can't bugger it there.