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 MANAGEMENTEMISSION CONTROL SYSTEMSAIR INJECTIONSERVICE AND REPAIR
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Air Injection: Service and Repair
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Service and Repair
Secondary Air Injection System Overview
1 Seal
• Replace
2 Secondary Air Injection (AIR) Solenoid Valve (N112)
• Removing and installing, refer to => [ Secondary Air Injection Solenoid Valve (N112) ] Service and Repair
3 Bolt
• 9 Nm
4 AIR Sensor 1 (G609)
5 Seal
• Replace
6 To Air Filter
7 Secondary Air Lines
8 Routing Aid for the Air Filter Drain Line
9 Nut
• 9 Nm
10 Bracket for the AIR Pump Motor (V101)
11 Nut
• 25 Nm
12 AIR Pump Motor (V101)
• Removing and installing, refer to => [ Secondary Air Injection Pump Motor (V101) ] Service and Repair
RENDER: 1.0x
NO RELATED
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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.