27+ How To Check Oil Level On Audi A4 A forum community dedicated to all audi model owners and enthusiasts. The process for how to check your oil is simple and involves using the dip stick to see levels and test quality. Engine Oil Level Sensor For Audi A3 A4 A6 A8 Q7 TT VW EOS ... from ae01.alicdn.com How to check the oil level in audi a4, a5, s5, a6, s6, a8, s8, q3, q5, q7.