Oil Level Sensor Wiring | Audi-Sport I guess it's possible the wrong plug has ended up on the level sensor when the engine went back in, but doesn't seem to be any other sensors nearby and nothing on the wiring diagram with the colours I've got either (that I can see). Car is a 2000 APY. Does anyone have any ideas or could be kind enough to look at their wiring?! Pressure Sensor & Wiring Diagram - YouTube Click to view on Bing1:46Pressure Sensor & Wiring Diagram Amazon Printed Books https: Part of our wiring diagram and electronic series shown here on this How Capacitive Liquid Level Sensors Work: GILLSCAuthor: ADPTrainingViews: 683K Oil Level Sensor Problem | VW TDI forum, Audi, Porsche When i had a proper look, the drive belt had frayed/split and was fllailing around. Took car to local garage, diagnosis was that the tensioner had failed, causing the belt to go slack, this then shredded and ripped the wiring harness (3 wires) to the oil level sensor in the sump in half.