Audi Coupe Quattro Brakes and Fleix Pipes

[Martc]

3 Questions around brakes:

1. About to set about changing all 4 flexi pipes on the CQ as I had an advisary on the MOT last year. Anything I should be aware of tackling the job or is it fairly straight forwards to do?

2. The car had brand new discs and pads all round about 4-5 years ago, and has done about 5000 miles since and they are squeeling a fair bit when braking, anything I should be looking out for, or is it a case of taking out the pads, re-applying some cooper slip and see what happens (the discs don't look scored)

3. If I go about taking the brakes apart to check, whats the procedure for winding back the calipers, its a straight push in or do you have to wind in the cylinder, if so do I need a special tool to do so?

Thanks!