Repair and service Audi A8 in body D2 with 1994 for 1999 of release.
1. Car operation
2. Maintenance service
3. Petrol engines of 2,8 l
4. Petrol engines of 3,7 and 4,2 l
5. Diesel engines of 2,5 l
6. Diesel engines of 3,3 l
7. Systems of ignition and injection of fuel of petrol engines
8. System of release of the fulfilled gases of cars with petrol engines
9. The power supply system of diesel engines
10. System of prestarting heating of diesel engines
11. System of release of the fulfilled gases of cars with diesel engines
12. Greasing system
13. Cooling system
14. Coupling
15. A transmission
16. Shaft of a drive of forward wheels
17. Features of a design of transmission of all-wheel drive cars
18. A suspension bracket
19. Wheels and tyres
20. A steering
21. Brake system
21.1. The general data
21.2. Antiblocking system of brakes (ABS)
21.3. Electronic system of stabilisation of course stability (ESP)
21.4. The general recommendations about operation and repair of antiblocking system of brakes and electronic system of stabilisation
21.5. Check of a rotor of gauge ABS
21.6. Replacement brake pads forward brake FN-3
21.7. Replacement brake pads forward brake HP-2
21.8. Replacement brake pads forward brake Brembo
21.9. Replacement back brake pads
21.10. Repair of forward support FN-3
21.11. Repair of forward support HP-2
21.12. Repair of forward support Brembo
21.13. Repair of a back support
21.14. A brake disk
21.15. The lever of a lay brake
21.16. Adjustment of a lay brake
21.17. Cables of a lay brake
21.18. Prorolling of a hydraulic drive of brakes
22. A body
23. Heating and air-conditioning system
24. An electric equipment
25. Electric schemes


21.9. Replacement back brake pads

Fig. 15–16. A support of a back brake: 1 – самоконтрящийся a bolt, 30 Нм; 2 – brake колодка; 3 – the holder of a support with directing fingers and protective covers (it is delivered in gathering in spare parts); 4 – a bolt (on cars with a steel rotary fist the moment of a tightening 60 Нм, with an aluminium rotary fist — 70 Нм + in addition to tighten on a corner 90 ); 5 – a brake disk; 6 – a support

Elements of the back brake mechanism are resulted on fig. 15–16.

Lift a back part of the car and fix on supports.
Necessarily replace all pads on one axis of the car even if one of them is worn out only.

Fig. 15–17. Unscrewing of bolts of fastening of a support

Unscrew bolts of fastening of a support, keeping from проворачивания directing finger (fig. 15–17). Remove a support and a soft wire tie up a support to a back suspension bracket. The brake support should not hang on a brake hose. The brake hose should not stretch or be overwound.
If old pads will repeatedly establish, mark them.
Take brake pads from a support.
Clear a support of a dust and a dirt.

At installation new brake pads it is necessary to screw in the piston in a support. At ввинчивании the piston the brake liquid is superseded from the brake cylinder in a broad tank, therefore constantly supervise level of a brake liquid in a tank, if necessary pump out a liquid from a tank.

Fig. 15–18. Ввинчивание the piston in a support with use of the special tool 3272

For ввинчивания the piston in the cylinder it is necessary to use the tool 3272. Establish the tool so that its fillet has entered into piston grooves. Rotate the case of the special tool counter-clockwise against the stop. Rotating the handle of the special tool clockwise, screw in the piston in a support (fig. 15–18).
In the absence of the special tool screw in the piston in a support, using angular flat-nose pliers for lock rings.
Establish brake pads in the holder of a support, thus watch, that press springs settled down vertically. If are established old pads, be convinced that they are established the same as and before removal.
Establish a support, screw in a new bolt of fastening of a directing finger and tighten its moment 35 Нм. To each complete set brake pads put on one new bolt for each support.
Establish back wheels and lower the car.
Check up level of a brake liquid and if necessary finish it to the normal.
Press a brake pedal that pads have occupied working position.

21.8. Replacement brake pads forward brake Brembo

21.10. Repair of forward support FN-3