Operation CHARM
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Audi
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2007
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A4 Sedan (8EC) L4-2.0L Turbo (BWT)
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Repair and Diagnosis
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Sensors and Switches
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Sensors and Switches - Powertrain Management
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Sensors and Switches - Computers and Control Systems
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Oxygen Sensor
Oxygen Sensor
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Testing and Inspection
Oxygen Sensor Heater, Checking
Oxygen Sensor 1 Heater After Catalytic Converter, Checking
Heated Oxygen Sensor, Checking
Oxygen Sensor After Catalytic Converter, Checking
Locations
Beneath Engine Coolant Expansion Tank
Oxygen Sensors / Harness Connectors
Engine Compartment Right Side
Heated Oxygen Sensor (HO2S) G39
Oxygen Sensor (O2S) Heater Z19
Component Locations
Service and Repair
Heated Oxygen Sensor Before Catalytic Converter
Oxygen Sensor 1 and Heater After Catalytic Converter
Technical Service Bulletins
