Engine oil sensor defectiveEngine oil sensor defective - Auto-check control - Driver information system - Controls - Audi A4 Owner's Manual - Audi A4

If the symbol lights up, take the Oil level ! Sensor defective

If the vehicle to a qualified workshop and have the oil level sensor checked. Until then symbol lights up, take the vehicle to a qualified workshop and have the oil level sensor checked. Until then it is advisable to check the oil level every time you fill up with fuel.