Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
1.1. General information
1.2. Keys, locks of doors
1.3. Governing bodies, combination of devices and equipment of interior of the car
1.4. Seats and means of passive safety
1.5. Conditioning and heating
1.6. Driving and service of the car
1.6.1. Launch of the engine
1.6.2. Emergency brake
1.6.3. The help at the parking ahead and behind
1.6.4. System of regulation of speed
1.6.5. Automatic transmission
1.6.6. Klinotsepna variator of "Multitronic"
1.6.7. Operation of "Multitronic"
1.6.8. Electronic system of dynamic stabilization (ESP)
1.6.9. Antiblocking device brake systems
1.6.10. Electronic blocking of differential (EDS)
1.6.11. System of regulation of the drive of driving wheels (ASR)
1.6.12. Amplifier of the steering drive
1.6.13. System servotronik
1.6.14. Four-wheel drive ("Quattro")
1.6.15. The movement with the trailer
1.6.16. Removable traction coupling device
1.6.17. Control of level of oil
1.6.18. Cooling liquid
1.6.19. Rechargeable battery
1.6.20. Windscreen washer
1.6.21. Replacement of a wheel
1.6.22. Lifting of the car
1.6.23. Dismantle / installation of a wheel
1.6.24. Help of launch of the engine
1.6.25. Safety locks
1.6.26. Glow lamps
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







1-6-13-sistema-servotronik.html

1.6.13. System servotronik

The electronic regulator of system a servotronik operates the amplifier of the steering mechanism.
On cars with system the servotronik the electronic regulator operates operation of the amplifier of the steering drive depending on the speed of the movement.
At system failure the servotronik efficiency of the amplifier of the steering drive remains. However efficiency of strengthening is not regulated according to the speed of the movement any more. The failure of the electronic regulator is most obviously distinguished on unusual increase in effort to a steering wheel at a menevrirovaniye (i.e. at a small speed). Malfunction has to be as soon as possible eliminated at the specialized enterprise.


1.6.12. Amplifier of the steering drive

1.6.14. Four-wheel drive ("Quattro")