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Audi
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2004
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A6 Quattro Sedan (4B2) V8-4.2L (AWN)
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Component Tests and General Diagnostics
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Knock Sensors
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With Manufacturer's Scan Tool
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Knock Sensor control limit, checking
Knock Sensor control limit, checking
Knock sensor
control limit, checking
If the malfunction message "Knock Control - Limit Attained" is recorded in the DTC memory the following tests must be carried out: