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
 










21-10-remont-perednego-supporta-fn-3.html

21.10. Repair of forward support FN-3


Fig. 15–19. Forward support FN-3: 1 – a protective cap; 2 – a directing finger, 25 Н·м; 3 – the prorolling union; 4 – a protective cover; 5 – a support; 6 – a spring; 7 – the plug; 8 – the holder of a support; 9 – a sealing ring; 10 – the piston; 11 – a protective cover



Details of forward support FN–3 are shown on fig. 15–19.
Clear of a dust and a dirt a support, without inhaling risen dust.
Fix a support in a vice. Take the piston from a support for what submit air under low pressure to the brake cylinder through an aperture for connection of a brake hose, having established instead of brake pads wooden брусок.

Fig. 15–20. Use of an assembly wedge for extraction of consolidation from a flute of the cylinder of a support



Remove wooden брусок and cautiously take the piston. Accurately, not to damage a cylinder wall, take out consolidation from a flute of the cylinder of a support an assembly wedge or an edge of a flat screw-driver as the lever (fig. 15–20).
Check up a condition of all details of a support and replace the worn out or damaged details. Special attention turn on the cylinder and the piston. In the presence of scratches, рисок, deterioration or dot corrosion it is necessary to replace the piston and the cylinder. Irrespective of a condition replace all rubber consolidations.
Wash out all details in methyl spirit or a pure brake liquid and wipe them. Blow tubes and apertures the compressed air.

Fig. 15–21. The Installation site of a protective cover on the support piston



Apply a thin film greasings G 052 150 А2 on a sealing ring and the piston (fig. 15–21).
Establish a dustproof cover on the piston so that internal diameter of a cover was included into a piston flute.

Fig. 15–22. Use of the special adaptation for installation of a working edge of a dustproof cover in a support



Establish the piston opposite to the cylinder of a support and the special adaptation insert a working edge of a dustproof cover into a support before its fixing (fig. 15–22).
By means of the special adaptation or the hammer handle press the piston into the support cylinder.
After piston installation blow air the cylinder and fill with its fresh brake liquid.


21.9. Replacement back brake pads

21.11. Repair of forward support HP-2