Were is located the oil pressure sender unit in a Mercedes 400S 1992?

In a 1992 Mercedes 400S, the oil pressure sender unit is typically located near the oil filter, on the engine block. It is usually found on the driver's side of the engine, towards the rear. To access it, you may need to remove some components or work from underneath the vehicle for better visibility. Always consult the vehicle's service manual for precise location and instructions.