Audi A4

since 1994 release

Manual of the car

Audi A4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
- Brakes
   Independent work on the brake system
   So the brake system works
   Check of brakes
   Brake fluid
   Check of level of brake fluid
   Check of the brake system on tightness and existence of damages
   Replacement of brake fluid
   Disk brakes
   Measurement of thickness of overlays of forward disk brakes
   Check of a condition of brake disks
   Replacement of overlays of disk brakes
   Back disk brakes
   Measurement of overlays of back disk brakes
   Emergency brake
   Check of idling of the lever of the emergency brake
   Main brake cylinder
   Brake amplifier
   Check of the brake amplifier
   Works on hydraulics of the brake system
   Pumping of the brake system
   The help at malfunctions
   ABS and EDS
   What does ABS?
   Function of separate knots
   Electronic system of distribution of brake effort (EBV)
   Violations in work of the ABS system
   Electronic blocking of differential (EDS)
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics



In the drawing the main design of system of anti-blocking in Audi A4 is shown.

ABS cannot create a braking miracle as it is often supposed; the brake way becomes significantly shorter not under all conditions.

More ABS helps to keep controllability the car at strong braking. But for this purpose much stronger turn of a wheel, than usually is required. It is only one of the moments, the others those that at the ordinary brake system:

  • Therefore be trained on the remote parking lot to full braking with turn of a wheel.
  • At the same time completely wring out a brake pedal. The dosage of brake effort for you is undertaken by ABS.
  • It belongs to braking at the movement both on a straight line, and at turn of a wheel.
  • Be not surprised to a brake pedal pulsation. When ABS regulates braking, this vibration of a pedal is the normal phenomenon.
  • In extreme cases even in the presence of ABS you have to release a brake pedal to save the ticklish situation turn.