A3 Mk2
Note
|
| 1 - | Gasket |
| q | For brake servo |
| 2 - | Brake servo |
| q | Checking function |
| q | With the engine switched off, firmly depress the brake pedal several times (this reduces the vacuum present in the servo unit). |
| q | Then hold brake pedal in applied position employing moderate force and start engine. If the servo unit is working properly, the pedal will give slightly under foot (servo assistance becomes activated). |
| q | Separating from brake pedal → Chapter |
| q | Removing and installing → Chapter |
| q | Removing and installing (vehicles with 7-speed dual clutch gearbox, S tronic) → Chapter |
| q | Removing and installing (vehicles with TFSI engine) → Chapter |
| q | Removing and installing (RS 3) → Chapter |
| q | If faulty, renew complete. |
| 3 - | Seal |
| q | Renew |
| 4 - | Brake master cylinder |
| q | Cannot be repaired. |
| q | If faulty, renew complete. |
| q | Removing and installing → Chapter |
| q | Removing and installing (vehicles with TFSI engine) → Chapter |
| 5 - | Heat shield |
| q | Allocation → ETKA |
| 6 - | Hexagon nut, 20 Nm |
| q | Self-locking |
| q | Always renew if removed |
| 7 - | Brake line, 14 Nm |
| q | Brake master cylinder/secondary piston circuit to hydraulic unit |
| 8 - | Brake line, 14 Nm |
| q | Brake master cylinder/primary piston circuit to hydraulic unit |
| 9 - | Sealing plug |
| q | Lubricate with brake fluid and insert into brake master cylinder |
| 10 - | Brake fluid reservoir |
| q | Lubricate with brake fluid and insert in sealing plugs in brake master cylinder |
| q | With integrated warning contact for brake fluid level (gradual introduction) |
| q | Replacement of warning contact involves removing brake fluid reservoir |
| q | Press brake fluid reservoir into sealing plugs |
| 11 - | Filler cap |
| q | With integrated float and warning contact for brake fluid level |
| 12 - | Vacuum pipe |
| q | With non-return valve |
| 13 - | Sealing plug |
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