T40178 Engine Oil Level Gauge Dipstick For Audi A4 A5 A6 2.0L TFSI 3.2L 4.2L FSI This oil gauge and dipstick is designed for measuring the oil levels on different Audi engines fitted with electronic oil level systems. Applicable: 2009 AUDI A4, A5 and A6 with Engine 2.0L TFSI,3.2 FSI and 4.2L FSI The Tool also checks the oil levels in Audi A4 A5 6 cylinder petrol 3.2 litre 4 valve engines. It can also be used to assist the calibration of the driver's instrument panel.