Where is the Terminal 15 Relay Located in a Mercedes-Benz C200?

[LauraLynn]

In the Mercedes-Benz C200, the Terminal 15 relay is located under the hood, on the left side of the engine compartment next to the battery. The origin of relays: In the 1830s, American physicist Joseph Henry invented the relay while studying circuit control by utilizing the phenomenon of electromagnetic induction. The earliest relays were electromagnetic relays, which used the phenomenon of magnetism generation and disappearance in electromagnets when powered on and off to control the opening and closing of another circuit with high voltage and high current. The function of relays: Relays are mainly used for control circuits, while contactors are primarily used for main circuits. Through relays, it is possible to use one control signal to control another or several signals, achieving functions such as start, stop, and interlock. The main control target is the contactor. The contacts of the contactor are relatively large and have strong load-bearing capacity, enabling the control from weak to strong currents, with the control object being electrical appliances.