A4 Mk3
| Hydraulic unit -N55- with ABS control unit -J104- - overview |
| 1 - | ABS hydraulic unit -N55- with ABS control unit -J104- |
| q | Fitting location: In engine compartment (front left) |
| q | Removing and installing → Chapter |
| q | Hydraulic unit -N55- with integrated brake pressure sender -G201- and ABS control unit -J104- together form the hydraulic control unit |
| q | These components must not be separated |
| q | Do not unplug connector before completing self-diagnosis |
| q | Switch off ignition before detaching connector |
| q | Brake pressure sender -G201- is integrated in hydraulic unit -N55- and cannot be renewed separately |
Caution
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| 2 - | Bracket for ESP |
| q | The bracket cannot be removed |
| 3 - | Electrical connector for control unit -J104- |
| 4 - | Brake line |
| q | To brake master cylinder |
| q | 14 Nm |
| 5 - | Brake line |
| q | To brake master cylinder |
| q | 14 Nm |
| 6 - | Brake lines |
| q | Hydraulic unit to front right brake caliper |
| q | 14 Nm |
| q | Hydraulic unit to front left brake caliper |
| q | 14 Nm |
| q | Hydraulic unit to rear left brake caliper |
| q | 14 Nm |
| q | Hydraulic unit to rear right brake caliper |
| q | 14 Nm |