Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
3. Transmission
4. Running gear
4.1. Wheels and tires
4.1.1. General information on wheels and tires
4.1.2. Specifications for re-equipment of disks and tires
4.1.3. Indexes of speed of tires
4.1.4. Marking on disks
4.1.5. Compound disks
4.1.6. Wear and hodimost of tires
4.1.7. Wear of high-speed tires
4.1.8. Service of tires
4.1.9. Evenly worn-out tires
4.1.10. Measurement of height of the drawing of a protector
4.1.11. Unilateral wear
4.1.12. Diagonal uneven wear
4.1.13. Noise of swing of tires
4.1.14. Balancing
4.1.15. Radial and side beating of wheels and tires
4.1.16. Check of a radial and side beating of a disk with the tire by means of the indicator of hour type for tires V.A.G 1435
4.1.17. Minimization
4.1.18. Side withdrawal of the car
4.1.19. Elimination of side withdrawal
4.1.20. Damages of tires
4.1.21. Design of the radial tire
4.1.22. Loss of pressure of air in tires
4.1.23. Damages of tires because of mistakes when mounting (assembly damages)
4.1.24. Marking of a sidewall of the tire
4.1.25. Shift of wheels
4.1.26. Instructions on replacement and installation of wheels
4.1.27. Change of tires
4.1.28. Removal and installation of the case of the metal gate
4.2. General information about a running gear of the car
4.3. Repair of a suspension bracket of forward wheels
4.4. Back suspension bracket
4.5. Tables
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment


4.1.5. Compound disks

Compound disks consist of several details.
The rim and disk of a wheel are the most important. These details fasten to each other special bolts with use of special technology. Thanks to it density, safety and accuracy of rotation of a wheel without radial beating is ensured. In the conditions of auto repair shop or the authorized station implementation of these important requirements cannot be guaranteed.

It is forbidden to sort or repair compound disks.

Light-alloy wheels with replaceable decorative elements
These disks are equipped with replaceable decorative elements. At installation to observe the following instructions.
Before screwing of new wheel bolts clear a carving in a disk.

Fig. 4.1. Decorative element of a disk: 1 – decorative element; 2 – bolts with an internal hexagon

Use new bolts (fig. 4.1).
The inhaling moment самоконтрящихся bolts with an internal hexagon: 5 N · m.

4.1.4. Marking on disks

4.1.6. Wear and hodimost of tires