Hi, I am going to replace the brake fluid and also the front pads.
Which one shall I do first, and why? Thanks.

 

chibitul wrote:
> Hi, I am going to replace the brake fluid and also the front pads.
> Which one shall I do first, and why? Thanks.
>
do them both at the same time.

you need to squeeze the piston back into the caliper anyway to change
the pads, so it's the ideal opportunity to change the fluid if you
squeeze the pads with the bleed valve open. that way, you're not
forcing old fluid back up into the master cylinder and you're ensuring
maximum volume change in the caliper.

 

I'd flush the brake fluid so when you push back the pistons, you are
pushing clean fluid back.

Check out the Power Bleeder. www.motiveproducts.com

 

johngdole@hotmail.com wrote:
> I'd flush the brake fluid so when you push back the pistons, you are
> pushing clean fluid back.
>
> Check out the Power Bleeder. www.motiveproducts.com
>

looks like a $10 bug sprayer with a cap attached. bet i could make one o
those!

 

johngdole@hotmail.com wrote:
> I'd flush the brake fluid so when you push back the pistons, you are
> pushing clean fluid back.
>
> Check out the Power Bleeder. www.motiveproducts.com
>
if you open the bleed valves /before/ pushing the pistons in, you don't
push /any/ fluid back. and you expunge more crud left in the bottom of
the cylinders than you ever can by straight bleeding.

 

give it a go, daddy-o:

http://www.bmw-m.net/TechProc/bleeder.htm