Place the vehicle on a two-post lift

Disconnect the battery

Install a device on the brake pedal to reduce the amount of brake fluid leaking.

ABS Hydraulic Unit Replacement

Fig. ABS Hydro-Electronic Module: 1 — Hydro-Electronic Module Connector; 2 — Right Front Wheel Brake Master Cylinder Line; 3 — Left Rear Wheel Brake Master Cylinder Line; 4 — pipeline of the working cylinder of the brake mechanism of the right rear wheel; 5 — pipeline of the working cylinder of the mechanism of the left front wheel; 6, 7 — pipelines of the master brake cylinder; 8 — Pump

You will need a special 11 mm wrench to loosen the pipe nuts.

ABS Hydraulic Unit Replacement

Pump the brake fluid out of the master cylinder reservoir.

Remove the sound insulation

ABS Hydraulic Unit Replacement

Removing the wiring harness connector retaining clip

Replacing the ABS Hydraulic Unit

Disconnecting the connector from the hydraulic electronic module connector

Replacing the ABS Hydraulic Unit

Remove the hydraulic unit bracket mounting bolts.

Replacing the ABS Hydraulic Unit

Unscrew the brake master cylinder line nut and carefully move the line aside.

ABS Hydraulic Unit Replacement

Unscrew the working cylinder lines one by one, while carefully moving the tubes away from the ABS hydraulic unit.

ABS Hydraulic Unit Replacement

Unscrew the second line from the master cylinder

Remove the ABS hydraulic module

Installation

Replacing the ABS hydraulic unit

Connect the brake lines and tighten them a few turns, making sure the union nuts are threaded correctly. After that, use a wrench.

After all the lines are tightened, loosely attach the hydraulic unit bracket with bolts.

After After this, tighten the lines.

Tighten to the specified torque:

  • – Valve body bracket mounting bolts (6.5 Nm);
  • – Valve body pipe mounting nuts (14 Nm);
  • – Valve body to bracket mounting bolts (8 Nm).

Bleed the brake system

Depending on the configuration, on some vehicles, other parts and assemblies may need to be removed to access the ABS unit.