The ratio of dics wearing are usually about 2 sets pads to 1 set discs so I wouldn't worry too much on that respect.
When you say the pads were down to the metal on 1 side you don't say whether its 1 side of each disc, or 1 side of the car? If it's 1 side of the car then the brakes need checked to find out why. If its 1 side of each disc, and the other side of each disc is pretty well worn out too, then that's pretty normal.
If the brakes are operating properly and not leaking then it appears like you have done no harm pushing the pistons back. Time will tell on that one.
Hope this helps.
When you say the pads were down to the metal on 1 side you don't say whether its 1 side of each disc, or 1 side of the car? If it's 1 side of the car then the brakes need checked to find out why. If its 1 side of each disc, and the other side of each disc is pretty well worn out too, then that's pretty normal.
If the brakes are operating properly and not leaking then it appears like you have done no harm pushing the pistons back. Time will tell on that one.
Hope this helps.
