TT L4-1.8L Turbo (BEA) (2004)
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A test drive must be carried out after bleeding brakes. When doing this an ABS-controlled brake application on all four wheels must be performed at
least once.
Changing brake fluid
Refer to Maintenance booklet
Bleeding brake system without brake filling and bleeding appliance
Note: Make sure there is always sufficient brake fluid in the reservoir.
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Remove protective cap from bleeder screw on brake caliper and attach bleeder bottle hose to bleeder screw.
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Refer to Bleeding sequence
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Build-up brake pressure in brake system by pumping the brake pedal.
Note: Pump the pedal slowly to ensure bubble-free flow.
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Hold brake pedal down after building up pressure.
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Open bleeder screw with bleeder bottle hose attached until pressure drops (pedal drops).
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With brake pedal held down, close bleeder screw.
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Release brake pedal and wait for approximately 2 seconds to enable brake fluid to run from brake fluid reservoir.
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Repeat operation until brake fluid emerges clear and free from air bubbles.
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Tighten bleeder screw to 10 Nm, detach bleed hose and install protective cap on bleeder screw.
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Repeat procedure at the remaining brake calipers in the specified bleeding sequence.
Note:
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If one chamber of brake fluid reservoir has run completely empty (e.g. due to leak in brake system), brake system must be pre-bled.
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Top off fluid level in reservoir to "Max" mark (according to degree of pad wear) and close reservoir cap.
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Start engine and check pedal travel and brake pedal pressure.
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If the pedal travel is excessive, check brake system for leaks or repeat bleeding procedure.
Changing brake fluid
Refer to Maintenance booklet
Brake fluid reservoir is empty, bleeding brake system
Special tools and equipment
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Brake filler and bleeder unit VAS 5234
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Vehicle diagnostic, testing and information system VAS 5051 and VAS 5051/1
