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
 



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21.8. Replacement brake pads forward brake Brembo

Removal
Brake pads are equipped by the deterioration indicator. If the thickness brake pads less than 3 mm, in a combination of devices lights up a control lamp.
Loosen the bolts of fastening of a forward wheel, lift a forward part of the car and fix on supports. Unscrew bolts of fastening and remove a wheel.
Necessarily replace all pads on one axis of the car even if one of them is worn out only. If old brake pads establish again, before removal they are necessary for marking.
In need of replacement replace both lobbies of a brake disk. Before removal of a brake disk it is necessary to remove a support.
Fix a brake disk, having screwed in one bolt of fastening of a wheel.
Take a wire of the gauge of deterioration brake pads from an arm in a support. For this purpose a screw-driver edge squeeze out the rubber plug with a wire from an arm and turn it on 90 at first in one, then in other party.
Disconnect an electric socket of the gauge of deterioration brake pads.

Fig. 15–13. Elements of fastening brake pads forward brake Brembo: 1 – a clamp; 2 – a pin; 3 – a fixing spring


Пассатижами take clamps 1 (fig. 15–13).
Take in a direction to the car pins 2.
Remove fixing spring 3 brake pads.

Fig. 15–14. Use of a screw-driver for cave-in of the internal piston in a support



Using the edge of a screw-driver inserted between the piston and internal brake pads, press the piston into a support (fig. 15–14). At piston cave-in the brake liquid is superseded from the brake cylinder in a broad tank, therefore constantly supervise liquid level in a tank, and if necessary pump out from a tank a small amount.
Remove internal brake pad.

Fig. 15–15. Use of a screw-driver for cave-in of the external piston in a support



Using the edge of a screw-driver inserted between the piston and external brake pads, press the piston into a support (fig. 15–15).
Remove external brake pad.

Installation
Do not press a brake pedal at removed brake колодках.
Clear a dust and a dirt from a support, and from edge of a brake disk – a rust. If pads are suitable to the further operation, clear their wire brush and rags.
Check up a brake disk on presence of cracks, especially round apertures under bolts of fastening of a wheel, and also with presence of deterioration or mechanical damages and if necessary replace it.

Fig. 15–12. Forward brake Brembo: 1 – a brake disk; 2 – a support; 3 – brake pads; 4 – a fixing spring brake pads; 5 – pins; 6 – clamps; 7 – a bolt, 110 Нм; 8 – an arm; 9 – a brake tube, 15 Нм; 10 – a socket of the indicator of deterioration brake pads


At installation use new bolts 7 (fig. 15–12 see).
Establish brake pads in a support of a forward brake.
Establish on brake pads a spring, insert pins and fix their clamps (fig. 15–13 see).
Fix a wire of the indicator of deterioration brake pads and connect a socket.
Unscrew a bolt of fastening of a wheel and a brake disk. Establish a wheel and lower the car on the earth. Tighten bolts of fastening of a wheel the moment 120 Нм.
Similarly replace brake pads on the second forward wheel.
Some times press a brake pedal that brake pads have nestled on a brake disk.
Check up level of a brake liquid in a tank, if necessary add.
After installation new brake pads avoid sharp braking the first 200 km of run of the car.


21.7. Replacement brake pads forward brake HP-2

21.9. Replacement back brake pads