Place a brake fluid container under the expansion tank located on the master cylinder.
Disconnect the elastic hose connecting the expansion tank to the adjustment unit located on the left side of the vehicle (Fig. 6.22).
Disconnect the tube connections as follows:
- push the elastic hose into the depth of the tank,
- holding the flange firmly, carefully pull out the tubes.
Raise the vehicle and remove the left front wheel.
Remove the timing belt driven adjustment unit switch (on the left side) and also remove the belt drive cover (Fig. 6.23).
Disconnect the hydraulic pipes from the adjusting unit.
Loosen the clamping bolt on the axis of the adjustment unit and tilt the unit downwards (Fig. 6.24).
Remove the timing belt.
Remove the adjustable axle bolts.
Pull the adjustment unit upwards.
Remove the flexible hoses from the overflow valve.
Immediately close the hose openings with plastic inserts. Plug the valve openings.
The adjustment unit is installed in the reverse order. It is necessary to observe absolute cleanliness of the work. The toothed belts must be tightened so that they bend by 5 mm under the pressure of the thumb. It is necessary to bleed the brake system.