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Special tools and workshop equipment required
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◆ Brake filling and bleeding appliance VAS 5234
Or
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◆ Brake filling and bleeding appliance V.A.G 1869 A
Sequence of operations
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‒ Connect up brake filling and bleeding appliance VAS 5234 or
V.A.G 1869 A.
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‒ Detach protective cap at bleed screw of brake caliper and attach bleed hose of bleeder bottle to bleed screw.
Bleeding sequence
- 1 - Front left brake caliper
- 2 - Front right brake caliper
- 3 - Rear left brake caliper
- 4 - Rear right brake caliper
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‒ With bleeder bottle hose attached, leave bleed screw open until the brake fluid which emerges is clear and free from bubbles.
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‒ Press brake pedal 5 times to assist bleeding process.
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‒ Tighten bleed screw to 10 Nm, detach bleed hose and attach protective cap to bleed screw.
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‒ Repeat bleeding procedure in stated sequence at other brake calipers.
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‒ Making allowance for pad wear, fill brake fluid reservoir as far as max. mark and screw on cap.
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‒ Start engine and check both brake pedal travel and pressure.
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‒ In the event of excessive pedal travel, check brake system for leaks/repeat bleeding procedure.
After bleeding brake system, zero position compensation must be performed for brake pressure sender -1- -G201.
=> Running Gear, Self-diagnosis; Repair Group 01
On completion of bleeding, perform test drive involving at least one ABS control operation at all four wheels.
Changing brake fluid
=> Maintenance
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