Audi A4, S4

Since 2000 of release

Repair and car operation

Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
+ Current leaving and service
+ The engine
+ Systems of cooling, heating and the air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling, power shafts and differential
- Brake system
   Removal of air from brake system
   Removal and installation of lobbies brake колодок
   Removal and installation колодок brake mechanisms of back wheels
   Check of a thickness of a brake disk
   Removal and installation of a brake disk/support
   Adjustment of a lay brake
   Removal and installation of the switch of a stoplight
   Removal and installation of a brake hose
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Removal of air from brake system

After carrying out of repair of brake system during which time its opening was made, air can get to system. In this case air is necessary for removing from system. A presence sign in pipelines of system of air is the pliability of a pedal of a brake by pressing it. In this case it is necessary to eliminate негерметичность and to remove air from system.

On HUNDRED brake system, as a rule, it is filled with a liquid, and air from it leaves by means of the special device.

At use of the specified adaptation pressure of filling of system should not exceed 1 атм. This operation can be spent as well without the specified device. In this case air from brake system leaves by качательных movements of a pedal of a brake for what the help of the assistant is required.

If air has got into any separate brake cylinder, it is necessary to delete air from all brake system and by that from each wheel cylinder. If one support is replaced or under repair only, as a rule, it appears sufficient to remove air from the corresponding brake cylinder.

The remark on security measures

If one of chambers of the tank of a brake liquid is completely emptied (for example, at presence негерметичности in brake system or if at air removal have forgotten to add in the tank a liquid), in system air which gets to pump ABS is sucked in. Air from brake system in this case should leave on HUNDRED with application of the special device.

Sequence of removal of air: a back right brake, a back left brake, a forward right both forward left brake and the working cylinder of coupling.