A8L Quattro Sedan V8-4.2L (AKB) (2002)
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Connection for hydraulic clutch is attached at side
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For vehicles with ESP, there is an additional connection for the intake hose.
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Before adding brake fluid, note printed information on brake fluid reservoir.
6. Sieve
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Securely clipped in reservoir
7. Seal
8. Cap
9. Supply hose
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From brake fluid reservoir to clutch master cylinder
10. Seal
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Insert in groove at master cylinder
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Replace after removing master cylinder
11. Brake booster
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Removing and installing; Refer to brake booster
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Adjusting fork head, Refer to Fig. 1
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Function test
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With engine switched off, depress brake pedal firmly several times (to deplete vacuum in brake booster).
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Depress and hold brake pedal with average foot pressure and start engine. If brake booster is working properly, pedal will be felt to give
slightly under foot (booster assistance becomes effective).
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If malfunctioning: replace as complete unit only.
12. Circlip
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Install on pin
13. Gasket
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Brake booster is delivered with seal attached
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Only replace if damaged
14. Bulkhead
15. Pedal bracket
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Removing and installing; Refer to pedal assembly
16. Clutch master cylinder
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Replace if leaking
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Adjusting; Refer to pedal assembly, Fig. 1
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To remove, unscrew mounting bracket
17. Hex-nut, tighten to 25 Nm.
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Always replace
18. Grommet
19. Pin
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Insert in fork head and brake pedal
20. Vacuum hose
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Insert in brake booster
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On gasoline engines vacuum is supplied from intake manifold.
21. Brake line, 15 Nm
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Master cylinder/primary piston circuit to hydraulic control unit
22. Brake line, 15 Nm
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Master cylinder/secondary piston circuit to hydraulic unit
23. Hex bolt
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Screw in until stop
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To remove brake fluid reservoir, unscrew
Fig. 1 Adjusting fork head
a = 135mm - 0.5mm
Note:
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When measuring, fork head must be arranged at a right angle to surface of brake booster.
