Skoda Fabia

since 2000 release

Repair and operation of the car

Skoda Fabia
+ 1.1. Description of the car
+ 2. Engine
+ 3. Lubrication system
+ 4. Power supply system
+ 5. Cooling system
+ 6. System of production of the fulfilled gases
+ 7. Transmission and running gear
+ 8. Steering
- 9. Brake system
   + 9.1. Pedal knot
   9.2. Vacuum amplifier
   9.3. Main brake cylinder
   9.4. Pressure regulator (on models without ABS)
   + 9.5. The brake mechanism of a forward wheel like FS III
   + 9.6. The brake mechanism of a forward wheel like FS II
   + 9.7. Brake mechanism of a back wheel (drum)
   + 9.8. Brake mechanism of a back wheel (disk)
   + 9.9. Parking brake
   + 9.10. Anti-blocking system (ABS)
+ 10. Electric equipment
+ 11. Body
+ 12. Electrical circuitries


9.3. Main brake cylinder


Installation of the main cylinder on the car

1 – main cylinder;

2 – tank;

3 – tank stopper;

4 – vacuum hose;

5 – holder;

6 – sensor of level of brake fluid;

7 – connecting block;

8 – hose of the main cylinder of the hydraulic drive of coupling;

9 – vacuum amplifier


The main brake cylinder is not subject to repair, in case of malfunction it needs to be replaced assembled.

After removal of the main cylinder the sealing ring and самоконтрящиеся nuts of fastening of the main cylinder needs to be replaced new.


Brake fluid can determine malfunction of the main cylinder by dribble traces from it. More careful inspection can be carried out at service station by means of special devices and devices.


1. Remove the top casing of the engine (see subsection 2.1).
2. Remove the air filter (see subsection 4.1).
3. Disconnect a wire from the - plug of the rechargeable battery. Shoot the rechargeable battery with parts of cars (the big rechargeable battery) and the holder to get convenient access to the main cylinder.
4. Disconnect a block 7 (see rice. Installation of the main cylinder on the car) from the sensor 6 of level of brake fluid.
5. Open a stopper 3 tanks 2 and remove as much as possible brake fluid by means of a rubber pear. Enclose under the main cylinder of 1 rag that brake fluid did not get on a car detail.
6. Take out a vacuum hose 4 of the holder on a tank 2 main thing of the cylinder.
7. Part a spring collar and disconnect a hose 8 main cylinders of the hydraulic drive of coupling from the union of a tank of the main cylinder of a brake.
8. Take the brake tubes going from the main cylinder from the holder 5.
9. Turn off nuts of fastening and disconnect both brake tubes from the main cylinder. Muffle openings of tubes.
10. Turn off two nuts 3 (see rice. The vacuum amplifier with the main cylinder) fastenings of the main cylinder 1 to the vacuum amplifier 10.
11. Remove the main cylinder 1 from hairpins.
12. Having turned the main cylinder, install it on capacity by a tank mouth down and let's merge to the rest of brake fluid.
13. To remove a tank from the main cylinder, take out a pin 2, and then carefully pull a tank 11 up to bring tank branch pipes out of sealing plugs 13. Replace the plugs 13 torn or lost elasticity.


1. Install the main cylinder upside-down, having replaced a sealing ring 4 (see rice. The vacuum amplifier with the main cylinder) irrespective of its state.
2. It is also necessary to replace самоконтрящиеся nuts 3 new.
3. Before installation of a tank grease sealing plugs 13 with brake fluid.
4. After installation of the main cylinder add liquid in a tank and pump over the brake system (see subsection 9.9.6).

Moments of an inhaling, N · m

Nuts of fastening of the main brake cylinder
Nuts of fastening of brake tubes