Installing the ABS control unit
1 – control unit; 2 – brake pipe to the left front brake mechanism; 3 – brake pipe to the right front brake mechanism; 4, 5 – brake pipes from the master cylinder; 6 – brake pipe to the left rear brake mechanism; 7 – brake pipe to the right rear brake mechanism; 8, 9, 10 – brake pipe holders; 11 – vacuum booster; 12 – master cylinder; 13 – master cylinder reservoir; 14 – nuts; 15 – bracket; 16 – bolt; 17 – control unit bracket; 18 – special nut
Disconnecting the connector from the ABS control unit
1 – control unit; 2 – shoe retainer; 3 – block connection block
ABS control unit with brackets
1 – bracket; 2 – pillows; 3 – pins; 4 – block bracket; 5 – bolt; 6 – control unit
Please note! Uncoded control units are supplied as spare parts. After installation, the new unit must be coded using special equipment, so it is recommended to replace the control unit at a service station.
Caution! New control units are filled with brake fluid, so do not remove the transport plugs from the brake line openings beforehand. Otherwise, brake fluid will leak out of the control unit and it will be impossible to bleed the brake system after installing the unit.
1. Disconnect the wire from the "-" terminal of the battery.
2. Remove the upper engine cover (see subsection 2.1).
3. On 1.9L 74kW diesel models, remove the charge air duct and the hose between the engine inlet pipe and the upper air duct.
4. Open the front left wheel bleed valve and, as soon as brake fluid starts to flow out, close the valve.
5. Place under block 1 (see figure Installing the ABS control unit) use a rag to prevent brake fluid from getting on the car's parts.
6. Pull out the latch 2 (see figure Disconnecting the connector from the ABS control unit) pads and, pulling upwards, disconnect pad 3 from control unit 1.
7. Cover the control unit contacts to prevent brake fluid from getting on them.
8. Remove the brake pipes from the holders.
9. Loosen the union nuts and disconnect brake pipes 2, 3, 4, 5, 6 and 7 (see figure Installing the ABS control unit) from control unit 1. Plug the openings of the brake pipes and the control unit.
10. Unscrew nuts 14 and 18 securing the brackets and remove the control unit assembly with brackets 15 and 17 from the studs.
11. Remove bracket 1 (see the figure ABS control unit with brackets), removing pins 3 of bracket 4 from cushions 2.
12. Unscrew two bolts 16 (see figure Installing the ABS control unit) fasteners and remove control unit 1 from bracket 17.
13. Install the control unit in reverse order.
14. Finally tighten nuts 14 and 18 securing the block brackets to the body only after connecting the brake pipes. Each transport plug must be removed only by connecting the corresponding tube to the block.
15. After installation, code the control unit and bleed the brake system.
Tightening torques, Nm
| Bolts for fastening the control unit to the bracket 8 | 8 |
| Nuts for fastening the control unit brackets to the body | 20 |
| Brake pipe union nuts | 14 |
