In the article, we will consider the replacement of the master and slave cylinder of the clutch of a car

Removing and installing the clutch master cylinder

We prepare the car for the task and remove the battery

Remove the cap of the reservoir of the main brake cylinder and pump out the brake fluid with a rubber bulb or syringe from the section that feeds the hydraulic clutch release

How to replace Mazda 6 clutch cylinders

The reservoir has three sections: two separate sections for the brakes and one section for the hydraulic clutch release

Squeeze the antennae of the clutch release hose clamp, and disconnect the hose from the fitting of the master brake cylinder reservoir

Unscrew the nut securing the hydraulic drive tube from the clutch master cylinder

Clutch release master cylinder mounting: 1 - clutch release master cylinder; 2, 3 - nuts; 4 - spring retainer; 5 - clutch pedal; 6 - fork; 7 - plastic sleeve; 8 - axis; 9 - locknut; 10 - clutch master cylinder rod

Unscrew the nut 2 (Fig. 2) securing the clutch release master cylinder, located in the engine compartment

We pry off the spring retainer 4 and remove it from the chamfer of the axis

Remove axle 8 from the fork

Unscrew the nut 3 and completely remove the clutch release master cylinder

We install the parts in the reverse order and remove air from the hydraulic clutch release

Replacing the clutch slave cylinder

How to replace Mazda 6 clutch cylinders

We replace the slave cylinder when the clutch is not completely disengaged, most often this occurs when the sealing collars installed in the cylinder are worn

How to replace Mazda 6 clutch cylinders

Pry off the edge of the spring clip with a screwdriver and remove it

How to replace Mazda 6 clutch cylinders

Disconnect the tip of the tube from the working cylinder

How to replace Mazda 6 clutch cylinders

We unscrew the two mounting bolts and remove the working cylinder

How to replace Mazda 6 clutch cylinders

We install the parts in the reverse order, having previously lubricated with grease the mating surfaces of the slave cylinder rod and the clutch release shaft lever

Upgrading the system

Bleeding the hydraulic clutch

Pumping the system after depressurization, and after changing the fluid

Also, if the clutch is not completely disengaged (leads) when the pedal is pressed all the way down, which is accompanied by a characteristic grinding of gears when reverse gear is engaged

How to replace Mazda 6 clutch cylinders

Check the level of the working fluid in the tank, if necessary, top up the fluid to the norm

Remove the protective cap from the air bleed valve on the clutch slave cylinder

We put a hose on the valve and lower its end into a container with a small amount of brake fluid

Ask an assistant to press the clutch pedal four to five times at intervals of 2-3 seconds, and then keep it pressed

Unscrew the valve 3/4 turn. Liquid with air bubbles will flow from the hose into the container

Repeat the operations several times until the fluid exits the hose without air bubbles

During the duration hydraulic reservoirs, you need to check the fluid level in the reservoir

The level must not be allowed to fall below 25 mm from its bottom

We twist the valve, put on a protective cap and, if necessary, add liquid to the master cylinder reservoir