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 MANUALSAUDI2025Q3 PREMIUM PLUSREPAIR AND DIAGNOSISENGINE MECHANICALFUEL SYSTEMGENERAL, TECHNICAL DATA (FUEL SUPPLY SYSTEM)00 GENERAL, TECHNICAL DATASAFETY PRECAUTIONSSAFETY PRECAUTIONS WHEN WORKING ON SCR SYSTEMPERFORMING REDUCING AGENT RECIRCULATION
2025 Audi Q3 Premium Plus
Performing Reducing Agent Recirculation
2025 Audi Q3 Premium PlusSECTION Performing Reducing Agent Recirculation
- The reducing agent line must be drained using the Vehicle diagnostic tester in Guided Functions mode, Draining metering line .
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.