I replaced my rear pads and discs about 6 weeks ago. In hindsight I didn't need to replace the disc, I only needed to knock the edge/ lip off, but new ones on now.
It took me about and hour and a half to do both as I wasn't that confident about about it.
I bought my parts from VW as they were cheaper than TPS.
Just take your time and follow the guide.
Saved myself about £100 and I now have a bottlejack and the piston rewind tool, so can do it again when needed.
