Attention.
- The return of the pedal must not be prevented by shifted or additional floor coverings of the car (rugs).
- If necessary, bleed the air from the clutch control actuator.
1. First check the brake fluid level in the hydraulic brake reservoir.
Note. Clutch hydraulic system connected by supplementary hose (arrow 1) from one of the cameras (arrow 2) brake fluid reservoir as shown in the figure below.
If there is little brake fluid in this chamber, or if there is not even any fluid in it, then the system may be leaking.
In this case, the following parts of the hydraulic clutch control must be checked for external leaks:
Supplementary hose between the hydraulic brake reservoir and the clutch booster master cylinder.
Clutch control booster master cylinder.
Pipe and hose line or plastic pipe between the clutch booster master cylinder and the clutch release slave cylinder.
Connection points (push-on and screw connections) also in places where they are not visible.
Clutch release slave cylinder.
Note. External leakage is manifested, among other things, also by traces of brake fluid on or under the gearbox, as well as on the lower engine cover under the gearbox.
Check that the piping, hose line or plastic line between the clutch booster master cylinder and the clutch release slave cylinder is correctly routed. It is impossible for the wires to be bent at an acute angle or pinched anywhere.
2. Then you should carefully press the clutch pedal, while maintaining the pedal along the entire trajectory of the pedal in 5 different positions, always for about 20 seconds. At the same time, a second person checks whether fluid is leaking from the remaining components of the clutch control hydraulic drive. The assistant at the same time checks whether the pedal itself falls through at the moment of support.
3. Finally, the clutch release slave cylinder should be removed from the gearbox (without opening the tubing) and check the cuff for leaks of brake fluid from it. To do this, remove the cover from the rod (arrow), shown in the figure below.