1986-1992 Mercedes W124 ETM Fuse Box Diagram 1986-1992 Mercedes W124 ETM Fuse Box Map Fuse Panel Layout Diagram Parts: Power Seat Relay, Headlamp Washer Relay, Auxiliary Fan Relay, Power Window Relay, Auxiliary Fan, Preresistor Relay, Air Injection Relay, Convenience Relay, Auxiliary Fuse Holder.