The algorithm of the operation of the "LEDs" Mercedes E-Class (W212) is quite complex. The daytime running lamps shall be lit only if they are separated from other lighting devices. If the dipped-beam headlamps are lit, the DRL is only half-lit. When the expanded fog light is turned on (Intelligent Light System function), the navigation lights are extinguked. You can activate the DRL as follows:
1. Using the side arrows on the left of the joystick, select the "Install" menu;
2. Log in to the Light submenu.
3. Find the "Daily light" feature and activate the "OK" button.
