Press the Start button on the System Tester. · In this way the booster pump is activated.

911 Carrera 4 (996) Brakes -Hydraulics, regulator, booster Press the Start button on the System Tester. In this way the booster pump is activated. Bleed until clear, bubble-freebrake fluid emerges. In addition (throughoutbleeding operation) fully depress (pump)brake pedal as far as the stop at least ten times. Important: In vehicles with high mileage or in old vehicles, double the pumping cycles and use only half the brake master cylinder stroke (damage to the brake master cylinder could result / primary boot damage). 189_a_96 Note After a certain period of time has elapsed, the Tester switches off automatically(leaves the menu). If necessary, continue the procedure after a certain waiting time (select Bleed menu again.) Close the right front bleeder valve. Then immediately press the Stop button on the System Tester. In this way pump operation is ended. Switch ignition off and disconnect System Tester. Switch off and disconnect the bleeding device. Correct the brake fluid level if necessary. 4701 07 Bleeding brakes (vehicle with PSM) 47 -103 Printed in Germany -15, 1998 C4_47101