Hydraulic system, assembly overview: Notes

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2007 Audi S4, 2007 Audi RS 4, and 2006 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Hydraulic System, Assembly Overview

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Brake fluid reservoir

2 - Supply hose

For clutch master cylinder

3 - Line/hose assembly

For plug-in connections on clutch master cylinder and slave cylinder
Disconnecting from clutch master cylinder and installing → Clutch master cylinder, removing and installing
Disconnecting from clutch slave cylinder Disconnecting clutch slave cylinder from hose/line assembly

4 - Grommet

5 - Mounting bracket

6 - Clutch pedal

7 - Clutch master cylinder

Removing and installing → Clutch master cylinder, removing and installing
Do not remove clip - arrowA - or seal - arrowB -.
To remove line/hose assembly, pull out clip - arrowA - , but only as far as limit stop Clutch master cylinder, removing and installing .

8 - Hexagon socket head bolt, 20 Nm

9 - Retaining clip

Only replace when clutch master cylinder has been removed
Pry off to remove Removing retaining clip - A - in direction of - arrow -
Push in to install Pressing master cylinder operating rod into retaining clip - A - (in direction of - arrow -).

10 - Transmission

11 - Clutch slave cylinder

Do not operate clutch pedal after slave cylinder has been removed.
Removing and installing → Clutch slave cylinder on vehicles with 4.2 Liter V8 engine (S4), removing and installing
Bleed clutch slave cylinder after working on hydraulic clutch mechanism → Hydraulic clutch system, bleeding
Disconnecting hose/line assembly Disconnecting clutch slave cylinder from hose/line assembly

Do not allow brake fluid to come into contact with transmission.

12 - Bleeder valve

Tighten to 4.5 Nm
Follow correct procedure when bleeding → Hydraulic clutch system, bleeding .
If bleeder valve has broken off, it can be removed with 3 mm Allen key

13 - Dust cap

14 - Clip

To remove line pull out clip as far as limit stop Disconnecting clutch slave cylinder from hose/line assembly

15 - Bracket

For line/hose assembly
Attached to transmission together with slave cylinder

16 - Hexagon socket head bolt, 25 Nm

Clutch slave cylinder to transmission
Self-locking
Replace

17 - Retaining clip

18 - Seal

19 - Securing bolt

For brake fluid reservoir