Master cylinder (Fig. 1) with sequential piston arrangement

A reservoir is fixed to the body of the master cylinder, in the filler neck of which a sensor for insufficient brake fluid level is installed.

The master cylinder is non-disassemblable and cannot be repaired.

Replacement is required if it fails.

Fig. 1. Master cylinder: 1 - cylinder body; 2, 3 - brake circuit drive pistons; 4 - spacer washer; 5 – pusher

Removing and installing the brake master cylinder reservoir

The reservoir is removed for replacement or for preventive cleaning.

In addition, sometimes it is necessary to remove the reservoir to replace the rubber bushings that secure the reservoir.

Removing and installing the brake master cylinder reservoir

Disconnect the wiring block from the brake fluid level sensor

Removing and installing the brake master cylinder reservoir

Unscrew the plug and take out the level sensor

Removing and installing the brake master cylinder reservoir

Use a bulb to pump out the brake fluid from the reservoir liquid

Removing and installing the brake master cylinder reservoir

Pressing on the reservoir body from above, disconnect the plastic holders from the hooks on the cylinder

Removing and installing the brake master cylinder reservoir

Pry the reservoir with a screwdriver

Removing and installing the brake master cylinder reservoir

Removing the reservoir

Installing the reservoir in reverse order

Filling in brake fluid and bleeding the brake hydraulic drive, article - "Replacing brake fluid"

Replacing the brake master cylinder

Disconnect the wiring block from the low brake fluid level sensor and pump out the fluid from tank.

Replacing the master brake cylinder

Using a 13 key, unscrew the fittings of the two brake pipes

Move the pipes away from the brake cylinder

Replacing the master brake cylinder

Using a 13 mm wrench, unscrew the two nuts securing the master brake cylinder to the vacuum booster housing

Replacing the master brake cylinder

Remove the master brake cylinder together with the reservoir

Replacing the master brake cylinder

The connection of the cylinder with the vacuum booster is sealed with a rubber ring

Replacing the master brake cylinder

To replace the rubber connecting bushings, remove them from the brake cylinder housing

After installing the master brake cylinder, bleed the brake system.