The oil buzzer for a Citi Golf 1996 model is located inside the engine block, near the oil pan. It consists of a small metal cylinder with a wire attached to it. The metal cylinder is connected to the engine block by a screw, and the other end of the wire is connected to a terminal on the instrument panel.
The oil buzzer operates by sensing the level of oil in the engine pan. If the oil level drops below a certain point, the buzzer will activate and make a sound to alert the driver that the oil needs to be refilled.
