Jetta Wagon L4-2.0L (BEV) (2005)
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Now depress brake pedal with average foot pressure, hold and start engine. If the brake booster 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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Brake assistant in brake booster
2- Sealing cap
3- Brake fluid reservoir
4- Sealing plugs
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Coat with brake fluid and install into brake fluid reservoir