Editing Bleed the brakes (section)

==== S1 and non-ABS S2 ====

For the front brakes there are two ways to get rid of the small amount of air in the hose once it is re-connected to the car.

On an S1 and older S2 without ABS you can pump the brake pedal until the pistons come out (as if the pads where worn), attention DO NOT push them to much and get them out of the calipers!

Now open the bleeding nipple and compress the pistons with the flexible hose first while rotating and gently tapping the caliper in order to guide any air bubbles towards the other piston with the bleeding nipple. Push the piston in completely.

Now push the other piston with the bleeding nipple fully in. 
This will force any air bubbles out.

Now put the calipers and pads back in place and bleed once more.

Test for pedal firmness.

If this worked then continue with the next caliper.