GTI L4-2.0L Turbo (BPY) (2007)
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Identification: Dia. 5.25 mm and tube fitting with thread M10 x 1
9. Inner Torx bolt, 5.5 Nm
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Use new bolts.
10. Bracket
11. Hex bolt, 8 Nm
12. Gasket
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For brake booster
13. Brake booster
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On gasoline engines, vacuum is supplied from intake manifold.
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Some vehicles with a gasoline engine and automatic transmission are equipped with a vacuum pump for brakes.
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On vehicles with HBV, a vacuum sensor is installed
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Functional check:
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With engine switched off, depress brake pedal firmly several times (to deplete vacuum in tool).
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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
noticeably under foot (booster assistance becomes effective).
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Replace as a unit in the event of malfunction (previously, check all vacuum lines).
14. Sealing ring
15. Brake Booster Vacuum Sensor G483
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Only on vehicles with HBV
16. Dual master brake cylinder
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Cannot be serviced. Replace as complete unit if malfunctioning.
17. Heat shield
18. Hex nut, tighten to 25 Nm
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Always replace after removal
19. Sealing plugs
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Moisten with brake fluid and press into brake fluid reservoir
20. Brake fluid reservoir
21. Cap
22. Sealing plugs
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Connection for vacuum hose
23. Vacuum hose
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Insert into brake booster
Connection of brake lines from dual master brake cylinder to hydraulic unit
On tandem main brake cylinder:
A -
Primary piston circuit of main brake cylinder to hydraulic unit
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Identification: Dia. 6.5 mm and tube fitting with thread M12 x 1
