Hi guys, I've had a look using the search function but no matches on my exact issue I have a leon Cupra 1.9tdi on first start up after sitting over night the oil pressure warning light flashes and a buzzer sounds 3 times. Now my first though would be either low oil pressure, low oil level or a faulty sensor.. I've checked the oil level and all is good but I don't know where the sensor or sensor(s) is/are. The engine idles fine however if I turn the engine on and off a couple of times the light and buzzer stay off and likewise if I've been driving the car and it's only been sitting for a couple of hours it doesn't happen again either. Is this a faulty sensor? Is there a way for me to test this without taking it to a garage? Any help is welcomed. Thanks guys.