⇒ page 165
6 - Hexagon socket head flange bolt, 25 Nm
7 - Mounting bracket for pedal cluster
❑ Removing and installing ⇒ page 120
8 - Sleeves
9 - Bolt (Torx 45), tightening torque 23 Nm
10 - Self-locking hexagon nut, 49 Nm
11 - Brake line, 16 Nm
❑ Brake master cylinder/secondary piston circuit to hydraulic unit
12 - Brake line, 16 Nm
❑ Brake master cylinder/primary piston circuit to hydraulic unit
13 - Seal
❑ Renew
14 - Tandem brake master cylinder
❑ Cannot be repaired. Renew complete unit if defective
❑ Removing and installing ⇒ page 162
15 - Sealing plug
❑ Moisten with brake fluid and press into brake fluid reservoir
16 - Vacuum hose with hose clip (with lug fastener)
❑ Insert into brake servo unit
17 - Sealing plug
❑ Connection for vacuum hose
Note
Use only new brake fluid. Observe information on brake fluid res‐
ervoir!
Adjusting ball head
Left-hand drive vehicles:
-a = 178.2 mm ± 0.5 mm-
Right-hand drive vehicles:
-a = 203.3 mm ± 0.5 mm-
Note
♦
Surface -1- for measuring.
♦
The ball head must be set at right angles to the surface of the
brake servo when taking the measurement.
♦
Measure to end of ball head without gasket fitted.
♦
Whenever the length of the pushrod is re-adjusted in the ve‐
hicle the brake light switch must be renewed.
Tightening torque:
Ball head to brake servo 30 Nm
Audi A6 2005 ➤ , Audi A6 Avant 2005 ➤
Brake system - Edition 04.2019
9. Exploded view - brake servo / brake master cylinder 161
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