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
1.4.1. Mechanical adjustment of front seats
1.4.2. Electric adjustment of front seats
1.4.3. The memory device of provision of a seat of the driver (the car with the electric drive of seats, the memory device)
1.4.4. Head restraints
1.4.5. Armrest
1.4.6. Steering column
1.4.7. Means of passive safety
1.4.8. Pyrotechnic prednatyazhitel of seat belts
1.4.9. System of safety cushions
1.5. Conditioning and heating
1.6. Driving and service of the car
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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1.4.8. Pyrotechnic prednatyazhitel of seat belts

Principle of action
Safety of the fastened driver and passengers increases, in addition to system of safety cushions, the natyazhitel of tapes of a belt located on mechanisms of automatic retraction of seat belts with three-point fastening.
The system works at dangerous frontal collisions from sensors. At the same time the fastened belts with three-point fastening automatically stretch.
At stronger collisions safety cushions in addition reveal. Natyazhiteli of tapes of belts do not work at back collisions and capsizing of the car.

ATTENTION
All works in system and also to carry out dismantle and installation of its components owing to carrying out other repair operations only at the specialized enterprise.
Protective action of system is enough only for one accident. After operation of natyazhitel of tapes of belts the system of natyazhitel is subject to replacement.

NOTE
Natyazhiteli of tapes of belts do not work at easy frontal, side and back crashes, in case of capsizing of the car, and also at accidents without influence of significant forces in front.
At operation of natyazhitel of tapes of belts smoke is emitted. Smoke does not demonstrate fire of the car
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1.4.7. Means of passive safety

1.4.9. System of safety cushions