Procedures
Bleeding the clutch systemImportant notes on bleeding
The clutch hydraulics must always be filled or bled using a bleeding device. Furthermore, the bleeder valve must be opened sufficiently and the gauge pressure at the bleeding device must be approximately 2.0 bar.
Before the system is filled or bled, the clutch pedal must be in the Pedal fully depressed position.
As there is no system pressure, servo kinematic effects will cause the clutch pedal to move forward abruptly. In order to avoid damage, the pedal must be guided manually.
Bleed the system until no more bubbles appear at the bleeder valve (use a collecting bottle with transparent hose).
If the system has been open (e.g. after component replacement), the minimum filling time of 30 seconds must be observed.
Filling/bleeding
Note: If the system has been open (e.g. after component replacement), the minimum filling time of 30 seconds must be observed.
Use only new Super DOT 4 class brake fluid. This brake fluid is available under the following part numbers:
^ Container quantity 1 litre = 000.043.203.66
^ Container quantity 30 litres = 000.043.203.67
1. Remove the cover over the brake fluid reservoir. Fill reservoir to its top edge with new brake fluid. Connect the bleeding device to the brake fluid reservoir. - see figure
2. Move pedal to the Pedal fully depressed position. When doing so, guide the pedal by hand so that it does not move forward abruptly.
3. Switch on the bleeding device and set an overpressure of approximately 2.0 bar.
4. The bleeder valve -arrow- on the clutch slave cylinder must be opened until clear, bubble-free brake fluid emerges. Use a collecting bottle with a transparent hose for precise examination of the emerging brake fluid for cleanliness and freedom from bubbles.
5. Switch off and disconnect the bleeding device. Check the brake fluid level. It should not be above the MAX. mark.
6. Fit the cover over the brake fluid reservoir.