Road safety depends on the performance of the master cylinder of the vehicle's brake system. It is quite reliable and durable, withstands high loads. But in the process of operation, the rubber parts of the master cylinder wear out and their efficiency decreases.

The main signs of a breakdown:

1. Traces of brake fluid on the body of the vacuum booster;
2. "Softness" or wedge of the pedal, sticking when braking or problems getting it back into place after.
3. The main cause of problems is the failure of cuffs and other rubber parts that ensure the tightness and cleanliness of the system. For repairs, it is recommended to purchase a master brake cylinder repair kit.

1. A6 (4A2, C4)
2. A6 Saloon (4A2, C4)
3. A6 / S6 (4A2, C4)
4. A6 Avant (4A5, C4)
5. A6 / S6 Avant (4A5, C4)
6. 100 Avant (4A5, C4)
7. See more in applications

The usage of the master cylinder repair kit

An ineffective FRENKIT brand Repair Kit, brake master cylinder results in an increase in deceleration distance; a repair kit in most circumstances solves the problem.

Due to the significant swelling of the rubber bands, the pedal behaves completely differently. The driver has to push harder on it so that the pads encounter the discs.