TT Roadster L4-2.0L Turbo (BPY) (2008)
Electronic Brake Control Module: Service and Repair
ABS Control Module and Hydraulic Unit
CAUTION!
Disconnecting ABS control module (J104) and ABS hydraulic unit (N55) is not permitted.
Removing
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Read out control module version and make a note of it.
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Disconnect battery, noting radio code.
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Insert brake pedal actuator (V.A.G 1869/2) between brake pedal and driver's seat by pressing brake pedal down at least 60 mm.
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Connect bleeder bottle hose to left front and left rear brake caliper bleeder screw.
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Open left rear and left front brake caliper bleeder screws to reduce pressure in hydraulic unit.
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Close left front and rear brake caliper bleeder screws.
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Do not remove brake pedal loading device (V.A.G 1869/2).
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Release control module harness connector - arrow 1 - and pull off - arrow 2 -.
‹› Ensure no brake fluid enters control module connector housing. This could lead to corrosion of the contacts and thereby cause the system to fail.
‹› A contaminated housing must be carefully cleaned with compressed air.