replacing brake pads, help please?

I use a 6 inch to 8 inch c-clamp to compress them, it work's every time

depends on the car my friend. Some newer cars have a screw type mechanism that utilizes an allen wrench to sort of "unscrew" the piston back into place. This isn't that common however. Your best bet if you're having a lot of trouble is to loosen the bleeder valve (actually just taking it out is best) and placing the caliper up on a block. Put a socket or any other hard item down into the piston so you can hit good and square on the piston and pound the hell out of it with a hammer. It will shoot brake fluid out from the resevoir behind the piston and out of the bleeder valve hole. It's kinda messy so watch out, but it makes it a whole lot easier because there no longer is any sort of hydraulic resistance... goodluck

I use a C clamp with the bleeder open very slightly. Shouldn't have to open the bleeder but I do. The highest temp will be right at the caliper and that lets the older abused fluid out. That's just my way cause I'm picky and I'm already right there. Get a piece if Tygon tubing for the outlet of the bleeder and you can do it with no mess nohow.

skinny products of timber (to guard the pistons and the again of the calipers), pipe wrench (G-clamps, welding length mole wrench could properly be substituted), smooth stress. i don't think of the ABS will impact this without the ignition being switched on – yet you does no longer favor to attempt this and hit upon you've knackered a sensor or the ABS equipment – and, on condition that brakes are rather significant, you may favor to get advice from a BMW mechanic.

Do you have anti lock brakes - Destruction can occur if you force the fluid back into the master cylinder thru the anti lock sysytem.

you have to get a i forget what it is called but u twist it to keep parts in place ou kno like twist it to keep 2 wood peices 2gether but anywayz u use that and twist and open the brake fluid compartment leave it open and twst till u can not anymore then close the lid and un twist and there you go your all set

yes, the pistons probably screw in on your model, they make a special tool you can get at autozone for that.

try going to this site its pretty helpful