Where is the oil pressure switch located on an Audi A5?

[DeCourtney]

The oil pressure switch is located on the main oil passage of the cylinder block, sometimes near the oil filter. Normal oil pressure range: When the engine is running, the oil pressure is generally maintained within the range of 150~350 kPa. Symptoms of low oil pressure: If the oil pressure gauge indicates a pressure value below 98 kPa, it can be considered as low oil pressure, which may cause excessive wear of components and even mechanical failures such as bearing seizure, piston burning, etc. After starting the engine, the oil pressure quickly drops to near 0, or during normal temperature and speed operation, the oil pressure remains too low, with the oil pressure warning light continuously flashing or the buzzer sounding. Hazards of low oil pressure: Low oil pressure will result in poor lubrication on the surfaces of various components, increasing friction resistance and accelerating wear. Severe lubrication failure can lead to engine overheating and serious mechanical failures of major moving parts, affecting the engine's lifespan or even causing it to be scrapped.