A4 V6-3.0L (AVK) (2004)
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Unscrew brake lines -3- and seal with dummy plugs from repair kit Part No. 1H0698311 A
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Lay out plenty of lint-free cloths in the area of the hydraulic control unit.
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Unscrew brake lines -1- and -2- and take them out with the rubber grommet.
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Unscrew the bolts attaching the brake servo unit -1- (Torx T45).
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Remove brake servo with brake master cylinder.
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Unscrew the nuts attaching the brake master cylinder -1-.
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Carefully remove brake master cylinder from brake servo unit.
Installing
Pay special attention to the following on installation:
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Before installing brake master cylinder, clean any residual brake fluid off plenum chamber.
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When assembling brake master cylinder with brake servo unit, make sure push rod is properly positioned in brake master cylinder.