Renewing brake fluid • Hold the handbrake lever in to maintain the braking pressure and open the bleed screw, at the same time pulling the hanbrake lever up firmly. e Caution: Do not release the handbrake lever until the bleed screw has been closed. Renewing front brake fluid • Remove the break pads e Caution: Do not tilt the brake caliper when removing or install- ing, or the brake pads could be damaged. • Close the bleed screw, then release the hand- brake lever. • Allow brake fluid to escape from both brake cal- ipers in succession until it is clear and free from air bubbles. • Close the bleed screw. • Install the brake pads/brake calipers.
• Take off the brake fluid reservoir cover complete with the diaphragme. • Add brake fluid. e Caution: While renewing the brake fluid, its level must not drop below the MIN mark, or else air will be drawn into the brake circuit. If this happens, the brake system will have to be bled. L Note: When adding brake fluid, note the thickness of the brake pads. If the pads are new, add fluid up to the MAX mark. • Connect a suitable vessel to the bled screws on the brake caliper to trap the escaping brake fluid, and open the bleed screw by half a turn. • Brake fluid level = Max mark. • Place the diaphragm and reservoir cover back in position. • Tighten the retaining screws without using undue force.
• Make a functional check on the brakes and bleed the brake system if necessary. Renewing rear brake fluid • The rear brake caliper does not have to be re- mov-ed, nor its pistons forced back. • Continue the procedure as described for front brake fluid renewal. e Caution: Do not release the brake pedal until the bleed screws have been closed. • Using piston resetting tool, BMW No. 34 1 500 , press the pistons fully back into the brake cali- pers. • Take out the piston resetting tool and insert spacer, BMW No. 34 1 520 . • Press the pistons back in the second brake cali- per, but do not remove the piston resetting tool. • Close the bleed screw.
• Apply the hadbrake lever several times until braking pressure is felt to build up. 00.16 34 1 500 LT000100