RS 6 V8-4.2L Turbo (BCY) (2003)
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Indicated on display:
The rest of installation of the hydraulic pump for traction control occurs in reverse sequence.
Bleeding brake system using VAS 5234 brake filler and bleeder unit
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Open brake fluid reservoir.
Note: Brake fluid reservoir must be kept adequately filled at all times to prevent air from entering the brake system through the reservoir.
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With engine running and bleeder valve on right-rear brake caliper open, use brake pedal to pump brake fluid out of reservoir until level goes down
as far as opening for hydraulic clutch supply hose.
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Collect used brake fluid in suitable container. Close bleeder valve.
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On vehicles with manual transmission, the clutch slave cylinder must also be flushed out with new brake fluid.
Note the following for this procedure:
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Connect VAS 5234 but do not switch on yet.
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Open bleeder valve on clutch slave cylinder.
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Attach collector bottle hose.
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Switch on bleeder unit and allow approximately. 100 cc of brake fluid to flow out of clutch slave cylinder.
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Close bleeder valve.
The following sequence is valid for all four brake calipers.
1. Right-front brake caliper
2. Left-front brake caliper
3. Right-rear brake caliper
4. Left-rear brake caliper
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Attach bleeder hose from brake fluid collector to bleeder valve.
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Open bleeder valve and allow about 250 cc of brake fluid to drain out.
The action of pumping in new brake fluid flushes used brake fluid out of the system.
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Close bleeder valve.
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Check pedal pressure and brake pedal free play.
Max. free play: 1/3 of pedal travel
