A3 Mk1
| Hydraulics - exploded view of components |

| 1 - | Brake fluid reservoir |
| 2 - | Supply hose |
| 3 - | Clutch master cylinder |
| q | Removing and installing → Chapter |
| 4 - | Retaining clip |
| q | Only renew when clutch master cylinder has been removed |
| q | Lever off to remove → Fig. |
| q | Pressing on → Fig. |
| 5 - | Clutch pedal |
| q | Removing and installing → Chapter |
| 6 - | Hexagon nut, 25 Nm |
| q | 2 x |
| q | Self-locking |
| q | Renew |
| 7 - | Seal/O-ring |
| q | Renew; for correct version refer to → Parts catalogue |
| q | Whether a seal or an O-ring is used depends on the type of connection → Fig.. |
| q | Lubricate with brake fluid before installing |
| q | Push onto pipe connection |
| 8 - | Pipe/hose assembly |
| q | With frequency modulator |
| q | Disconnecting from clutch master cylinder and installing → Anchor |
| q | Disconnecting from clutch slave cylinder → Anchor |
| q | For correct version refer to → Parts catalogue |
| 9 - | Retainer |
| q | Attached to body |
| 10 - | Seal/O-ring |
| q | Renew; for correct version refer to → Parts catalogue |
| q | Whether a seal or an O-ring is used depends on the type of connection → Fig.. |
| q | Lubricate with brake fluid before installing |
| q | Push onto pipe connection |
| 11 - | Bleeder connection |
| 12 - | Seal/O-ring |
| q | Renew; for correct version refer to → Parts catalogue |
| q | Whether a seal or an O-ring is used depends on the type of connection → Fig.. |
| q | Lubricate with brake fluid before installing |
| q | Push onto pipe connection |
| 13 - | Clip |
| q | To remove pipe, pull out clip as far as limit stop → Anchor |
| 14 - | Bleeder valve |
| q | Bleeding clutch system → Chapter |
| 15 - | Dust cap |
| 16 - | Clip |
| q | To remove pipe, pull out clip as far as limit stop → Anchor |
| 17 - | Clutch slave cylinder (release bearing with hydraulic actuator) |
| q | Can only be removed after removing gearbox |
| q | Removing and installing → Chapter |
| 18 - | Clip |
| q | To remove pipe, pull out clip as far as limit stop → Anchor |
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