Golf L4-2.0L (AZG) (2004)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
ABS Mark 60
Hydraulic Unit, Brake Booster/Master Cylinder, Overview
Hydraulic unit, brake booster/brake master cylinder Mark 6O, assembly overview
Note: Complete master cylinder and brake booster can be replaced independently of each other
1. Brake booster
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For gasoline engines, the vacuum is taken from the intake manifold.
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Diesel engines, have a vacuum pump to create the required vacuum.
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With some vehicles, a brake system vacuum pump -V192- is installed.
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Functional check
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Removing and installing
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Application
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See replacement Parts supplier
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Functional check
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With engine switched off, press brake pedal firmly several times (to exhaust the vacuum in the module).
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Now depress brake pedal with average foot pressure, hold and start engine. If the booster module is working properly, the pedal will be felt
to give slightly under foot (booster assistance becomes effective).
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If faulty, replace complete
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Non-return valve (in vacuum hose)
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Separating from brake pedal
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Removing and installing
2. Cap
3. Brake fluid reservoir
4. Sealing plug
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Coat with brake fluid and press into brake master cylinder
5. Retainer pin
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Insert through brake master cylinder