Audi Workshop Service and Repair Manuals

Bleeding clutch system Special tools and workshop equipment required

t  Brake filling and bleeding equipment -VAS 5234- or brake filling and bleeding equipment -V.A.G 1869- t  Brake fluid specification → Brake system; Rep. Gr.47. Procedure   Note t  The clutch system must be bled after performing work on the hydraulic clutch mechanism. t  Before bleeding the clutch system, pull back the clutch pedal to the normal position and top up brake fluid to “Max” marking on brake fluid reservoir. t  Open the bleeder valve before switching on the bleeding appliance. t  When performing the following steps, make sure that no brake fluid escapes onto the gearbox. t  The clutch system should be bled at the same intervals as the brake system → Booklet8E. –  Connect brake filling and bleeding equipment -V.A.G 1869- or -VAS 5234-, but do not switch on at this stage.

–  If fitted, remove rear part of noise insulation -2 ... 3-.

Vehicles with 6-cylinder or 8-cylinder engine –  If fitted, remove noise insulation cover -arrows- in wheel housing (left-side).

–  Remove heat shield for drive shaft (left-side) -arrows-.

Continued for all vehicles –  Connect bleeder hose -A- to slave cylinder -arrow- and open bleeder valve. –  Connect bleeder hose to pressure hose of fluid collector bottle. –  Switch on bleeder appliance and allow about 100 cm3 of brake fluid to drain out. l  Operating pressure 2.5 bar   Note Ensure bleeder hose is correctly fitted during bleeding operation. –  Close bleeder valve and tighten to 4.5 Nm. –  Depress clutch pedal several times after bleeding process is completed. –  Repeat bleeding procedure if necessary. –  If applicable, bolt heat shield for drive shaft onto gearbox. Tightening torque

Component	Nm
Heat shield for drive shaft to gearbox	23