Operation CHARM
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Audi
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2007
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S4 Quattro Sedan (8EC) V8-4.2L (BHF)
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Exhaust System
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Actuators and Solenoids - Exhaust System
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Exhaust Pressure Regulator Vacuum Solenoid
Exhaust Pressure Regulator Vacuum Solenoid
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Testing and Inspection