Brake pads replacement clarification
Need a little clarification. In some posts I have read that one should open the brake bleeder screw when pushing the pistons back or you risk damaging the master cylinder.
However, most of the posts stated that (including the DYI link above) do not mention this. Does one need to open the bleeder screw when pushing the pistons back.
When I replaced the pads on my 91 300E I never opened the bleeder screw.