Anti-locking brake system (ABS) and anti-locking brake system with electronic differential lock (ABS/EDL) Teves 20 GI
Notes for repair work on ABS, ABS/EDL
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◆ Before carrying out repair work on the anti-locking system, determine the cause of the fault using self diagnosis.
=> Running gear - self diagnosis; Repair group 01
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◆ Before working on the ABS, ABS/EDL system, disconnect the battery earth strap. On vehicles with coded radio, obtain coding.
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◆ Before carrying out welding work with an electric welding unit.
=> Special information; Body No. 19
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◆ When working with brake fluid, observe the valid, relevant safety precautions and notes => Repair group 47.
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◆ Bleed the brake system with brake filling and bleeding unit VW 1238/1 or V.A.G 1238 B after work for which the brake system had to be opened => Repair group 47.
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◆ During the final road test, ensure that a controlled brake test is performed at least once (pulsations must be felt at the brake pedal).
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◆ Absolute cleanliness is required when working on the anti-locking brake system, it is not permitted to use any products which contain mineral oil, such as oils, greases etc.
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◆ Thoroughly clean all unions and the adjacent areas before loosening, do not use aggressive cleaning agents such as brake cleaner, petrol, thinners or similar.
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◆ Place removed parts on a clean surface and cover.
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◆ After separating the control unit/hydraulic unit use the transportation protection for the valve dome.
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◆ Carefully cover or seal open components if repairs cannot be carried out immediately.
(Use sealing plugs repair kit 1 H0 693 311 A).
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◆ Do not use fluffy cloths.
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◆ Only remove replacement parts from packaging immediately prior to installation.
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◆ Only use genuine packed parts.
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◆ When the system is open do not work with compressed air and do not move the vehicle.
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◆ Ensure that no brake fluid enters plug connectors.
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