A6 Quattro Sedan V8-4.2L (ART) (2000)
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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 US1116 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-rear brake caliper
2. Left-rear brake caliper
3. Right-front brake caliper
4. Left-front 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