VW ID4 Brake System
Workshop Manual
ID.4 2021 ➤
Brake system
Edition 07.2021
List of Workshop Manual Repair Groups
Repair Group
00 - Technical data 45 - Anti-lock brake system 46 - Brakes - mechanism 47 - Brakes - hydraulics
Technical information should always be available to the foremen and mechanics, because their careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a matter of course, be observed.
Contents
| 00 - Technical data . . . | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
|---|---|---|
| 1 | Safety information and repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
| 1.1 | Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
| 1.2 | Repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
| 2 | Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 2 |
| 2.1 | Allocation of PR number - brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 2 |
| 3 | Technical data for brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
| 3.1 | Brake master cylinder and brake servo . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
| 3.2 | Front brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
| 3.3 | Rear brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 4 |
| 4 | Brake test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 6 |
| 4.1 | . . Vehicle checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 6 |
| 4.2 | Checking electromechanical parking brake . . . . . . . . . . . . . . . . . . . . . . . | 6 |
| 45 - Anti-lock brake system . . . . | 7 | |
| 1 | Safety information and repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 7 |
| 1.1 | Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 7 |
| 1.2 | Repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 7 |
| 2 | Overview of fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 8 |
| 2.1 | Overview of fitting locations - ABS/ESP . . . . . . . . . . . . . . . . . . . . . . . . . . | 8 |
| 3 | Control unit and hydraulic unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 10 |
| 3.1 | Assembly overview - control unit and hydraulic unit . . . . . . . . . . . . . . . . | 10 |
| 3.2 | Removing and installing ABS control unit [J104]/ABS hydraulic unit [N55] . . . . . . . . . . . . . . . . . . . . . . . . | 14 |
| 3.3 | Connecting brake lines to hydraulic unit . . | 22 |
| 4 | Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 27 |
| 4.1 | Assembly overview - speed sensors on front axle . . . . . . . . . . . . . . . . . . | 27 |
| 4.2 | Assembly overview - speed sensors on rear axle . . . . . . . . . . . . . . . . . . | 27 |
| 4.3 4.4 | Removing and installing speed sensor on front axle [G45]/[G47] . . . . . . . Removing and installing speed sensor on rear axle [G44]/[G46] . . . . . . . | 28 29 |
| Checking ABS sensor ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 30 | |
| 4.5 | ||
| 46 - Brakes - mechanism . | 32 | |
| 1 | Safety information and repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 32 |
| 1.1 | Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 32 |
| 1.2 | Repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 32 |
| 2 | Front brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 33 |
| 2.1 | Assembly overview - front brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 33 |
| 2.2 | Removing and installing brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
| 2.3 | Removing and installing brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . | 40 |
| 3 | Rear brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 43 |
| 3.1 | Assembly overview - rear brake, drum brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 43 |
| 3.2 | Assembly overview - brake shoes . . . . . . . . . . . . . . . . . . . . . | 45 |
| 3.3 | Removing and installing brake shoes . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 47 |
| 4 | Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 55 |
| 4.1 | Assembly overview - parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 55 |
| 4.2 | Removing and installing control unit for electromechanical parking brake [J540] . . . . | 55 |
| 4.3 | Removing and installing parking brake motor [V282]/[V283] . . . . . . | 56 |
| 5 | Brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 57 |
| 5.1 | Assembly overview - brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Separating brake pedal from brake | 57 60 |
| 5.2 | servo . . . . . . . . . . . . . . . . . . . . . . . . . Connecting brake pedal to brake servo . . . . . . . . . . . . . . . . . . . . . . . . . . | 60 |
| 5.3 |
Table Caption: This table of contents outlines a repair manual for vehicle brakes, covering technical data, safety information, identification, the anti-lock brake system (ABS), brake mechanisms including front and rear brakes, parking brakes, and the brake pedal assembly. It provides page numbers for each section, detailing specific procedures like removing and installing components and checking systems.
Table Caption: This table is an index for a technical manual, listing chapter and section titles related to brake systems, including hydraulic components, brake pedal, and mounting brackets, along with their corresponding page numbers.
00 Technical data
1 Safety information and repair notes
1000579J4169.001.1 -
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