audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Exploded view - clutch release mechanism > < Removing and installing pipe/hose assembly
Bleeding clutch system
Bleeding clutch system
  Note
t  The clutch system must be bled after performing work on the hydraulic clutch mechanism.
t  In the following steps make sure that no brake fluid escapes onto the longitudinal member or onto the gearbox below.
t  Before bleeding clutch system, top up brake fluid reservoir to „max.“ marking with brake fluid.
Special tools and workshop equipment required
   
t  Brake filling and bleeding equipment -VAS 5234-
t  Brake fluid specification → Brake system; Rep. gr.47.
  W00-1101
Procedure
l  Tightening torque → Chapter „Exploded view - hydraulics (LHD)“
–  Pull clutch pedal back to rest position.
–  Remove air cleaner housing → Injection and ignition system; Rep. gr.24.
  A24-10737
–  Connect up brake filling and bleeding equipment -VAS 5234-.
–  Remove protective cap and connect 670 mm bleeder hose -V.A.G 1238 B3- to bleeder connection -arrow-.
–  Connect bleeder hose to collector bottle of brake bleeding unit.
–  Switch on brake bleeding unit.
t  Operating pressure 2.0 bar
–  Open bleeder screw.
–  Bleed off about 100 cm3 of brake fluid.
–  Close bleeder screw.
–  Rapidly pump clutch pedal through full range of travel 10 to 15 times.
–  Open bleeder screw once again.
–  Bleed off a further 50 cm3 of brake fluid.
–  Tighten bleeder screw, disconnect bleeder hose and fit protective cap.
–  Detach brake filling and bleeding equipment -VAS 5234- from brake fluid reservoir.
–  Depress clutch pedal several times after bleeding process is completed.
–  Repeat bleeding procedure if necessary.
–  Install air cleaner housing → Injection and ignition system; Rep. gr.24.
  A30-10229

Exploded view - clutch release mechanism > < Removing and installing pipe/hose assembly