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 MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 94 (MAINTENANCE)DESCRIPTIONS OF OPERATIONSINTERIOR MONITORING, CHECKING FUNCTION
1996 Audi A4 Base, Standard
Interior monitoring, checking function
1996 Audi A4 Base, StandardSECTION Interior monitoring, checking function
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
The function of the ultra-sonic interior monitoring is checked as follows:
- Open side window approx. 10 cm (4 in.).
- Lock vehicle to set alarm and activate interior monitoring.
- Wait 30 seconds until indicator light blinks with steady frequency (f = 0.5 Hz, or once every two seconds).
- Reach through window opening and place hand directly on sensor cover.
If interior monitoring is OK, the alarm will be triggered.
- Unlock vehicle to switch alarm off.
- Perform testing on all sensors in sequence.
- Erase DTC memory.
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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.