01 07 Bleeding The Clutch System − Gt2; Filling/Bleeding - Porsche 996 TT Repair Manual

30 01 07 Bleeding the clutch system − GT2
Note

Filling/bleeding

Note
• The clutch hydraulics must always be filled or bled using a pressure filling and bleeding device.
Furthermore, the bleeder valve must be opened sufficiently and the gauge pressure must be approx.
2.0 bar.
• If there is no system pressure, before the system is filled or bled, the clutch pedal must be in the
"Pedal fully depressed" position. In order to avoid risk of injury or damage, the pedal must be guided
manually. Otherwise, the clutch pedal can move forward abruptly (as a result of servo kinematic
effects).
• If the system was open previously (e.g. for component replacement), the minimum filling or bleeding
time must be 30 seconds.
• Use only new Super DOT 4 brake fluid. This brake fluid is available under the following part
numbers: container volume 1 litre = 000.043.203.66, container volume 30 litres = 000.043.203.67.
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Filling/bleeding
DANGER
Please note: danger of injury from depressing the clutch pedal, if there is no system pressure. The clutch pedal
will move forward abruptly as a result of servo kinematic effects.
• If the clutch pedal is fully depressed, the pedal must be guided manually.
1. If there is no or only lower system pressure, depress the clutch pedal fully. Guide the clutch pedal
manually.
2. Connect a bleeding device to the brake fluid reservoir. Switch on the bleeding device. Bleeding pressure is
approximately 2.0 bar.
3. The bleeder valve from the clutch slave cylinder (on the transmission) must be opened until clear,
bubble−free brake fluid emerges. Use a collecting bottle for precise examination of the emerging
30 01 07 Bleeding the clutch system − GT2 1850