Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
1.1. The general data
1.2. Keys, locks of doors
1.3. Controls, a combination of devices and the equipment of salon of the car
1.4. Seats and means of passive safety
1.5. Air-conditioning and heating
1.6. Driving and car service
1.6.1. Engine start-up
1.6.2. A manual brake
1.6.3. The help at a parking ahead and behind
1.6.4. System of regulation of speed
1.6.5. An automatic transmission
1.6.6. A klinotsepnoj variator Multitronic
1.6.7. Operation Multitronic
1.6.8. Electronic system of dynamic stabilisation (ЕSР)
1.6.9. The protivoblokirovochnoe device brake systems
1.6.10. Electronic blocking of differential (ЕDS)
1.6.11. System of regulation of a drive of driving wheels (ASR)
1.6.12. The amplifier of a steering drive
1.6.13. System сервотроник
1.6.14. A full drive (Quattro)
1.6.15. Movement with the trailer
1.6.16. The demountable tjagovo-drawbar
1.6.17. The control of level of oil
1.6.18. A cooling liquid
1.6.19. The storage battery
1.6.20. Стеклоомыватель
1.6.21. Wheel replacement
1.6.22. Поднимание the car
1.6.23. Dismantle / wheel installation
1.6.24. The help of start-up of the engine
1.6.25. Safety locks
1.6.26. Lamps накаливания
2. The engine
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
8. A body
9. Electric equipment schemes
 




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1.6.9. The protivoblokirovochnoe device brake systems

ABS prevents blocking of wheels at braking.
The protivoblokirovochnoe device of brake system (ABS) appreciably promotes increase of active safety of the car. Decided advantage of brake system with ABS in comparison with the usual consists that wheels are not blocked even at emergency тормо жении on slippery road. Thanks to it in the maximum degree controllability and stability of the car remains.

Principle of action ABS
At achievement of speed of the car about 6 km/h there is an automatic process of the control. At this time it it is possible to hear noise of work of the pump.
At propensity of a wheel to blocking pressure in a brake drive of the given wheel decreases. The given process of regulation is appreciable by a pulsation of a brake pedal and accompanied by characteristic noise displays. Thereby to the driver the warning signal about work of one or several wheels in a mode close to юзу is specially given. For maintenance in this mode of optimum effect of regulation by means of ABS keep a pedal of a brake pressed and do not brake at all in some качков.

The amplifier of emergency braking
The amplifier of emergency braking promotes increase in brake force.
The amplifier of emergency braking helps increase in brake force and thus promotes reduction of a brake way. By very fast pressing of a pedal of a brake the amplifier of emergency braking automatically leads up brake force to a maximum, up to intervention противоблокировочного devices of brake system (ABS). Keep a pedal of a brake pressed before reception of desirable effect of braking. Right after release pedals the amplifier of emergency braking is automatically disconnected.
In default противоблокировочного devices of brake system (ABS) the amplifier of emergency braking does not work.


1.6.8. Electronic system of dynamic stabilisation (ЕSР)

1.6.10. Electronic blocking of differential (ЕDS)