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 MANUALSAUDI1998A4 AVANT QUATTRO, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 16 (AUTOMATIC A/C-HEATER SYSTEMS)REMOVAL & INSTALLATIONFRESH AIR INTAKE DUCT TEMP. SENSORNOTES
1998 Audi A4 Avant Quattro, Automatic
Fresh Air Intake Duct Temp. Sensor: Notes
1998 Audi A4 Avant Quattro, AutomaticSECTION Notes
WARNING: This page is about a different car, the 2001 Audi S4, 2001 Audi A4, 2000 Audi S4, and 2000 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Sensor is easily accessible with airflow flap motor removed. If sensor cannot be turned, spray contact surface of rubber grommet with silicone spray. Remove dust/pollen filter, reach into intake, and turn sensor 90 degrees.
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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.