RS 6 V8-4.2L Turbo (BCY) (2003)
Brake Master Cylinder: Service and Repair
Brake Master Cylinder, Removing and Installing
Brake master cylinder, removing and installing
Special tools and equipment
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Sealing plugs from repair kit, Part No. 1 HO 698 311 A
Removing
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Attach bleeder hose of bleeder bottle to left-front brake caliper bleeder valve and open bleeder valve.
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Operate brake pedal to pump out as much brake fluid as possible.
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Close left-front bleeder screw.
Note: Cover engine compartment to make sure that brake fluid does not flow into it.
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Disconnect clutch master cylinder supply hose -1- and seal with plug.
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Disconnect harness connector for brake fluid level warning switch -2-.
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Disconnect brake lines -1- on brake master cylinder and seal brake lines using plugs from repair kit, Part No. 1 HO 698 311 A.
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Remove brake master cylinder nuts -2-.
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Carefully remove brake master cylinder from brake booster.
When installing, pay particular attention to the following points
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When installing brake master cylinder onto brake booster, make sure push rod is correctly located in brake master cylinder.
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Apply slight pressure to brake pedal to move push rod toward brake master cylinder; this makes it easier to guide brake master cylinder onto push
rod.
Bleeding clutch hydraulics:
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Connect VAS 5234 but do not switch on yet.