Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012A3 (8PA) L4-2.0L TURBO (CCTA)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSOXYGEN SENSOR
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Oxygen Sensor
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Oxygen Sensor
Testing and Inspection
Service and Repair- Oxygen Sensors Overview
- Engine Code CBFA
- Heated Oxygen Sensor (G39) and Oxygen Sensor Heater (Z19) Before Catalytic Converter
- Oxygen Sensor After Three Way Catalytic Converter (G130) and Heater For Oxygen Sensor 1 After Catalytic Converter (Z29)
- Oxygen Sensor 3 After Catalytic Converter (G287) and Heater For Oxygen Sensor 3 After Catalytic Converter (Z64)
- Engine Code CCTA
Diagrams
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.