Operating conditions WARNING Functionality Light Assist high-beam assist system Settings Operating conditions Settings Replace light bulbs What you should be mindful of CAUTION NOTICE COMING HOME, LEAVING HOME exterior lighting Functionality Function restriction Switching off Switching on Operation Beam of light in front of the vehicle has shortened 39 Lighting, windscreen wipers and washers ›  COMING HOME, LEAVING HOME exterior lighting It lights up in the instru- ment cluster   from the isolation box. If a message regarding the failed driving lights is dis- played, the light will work in emergency mode. Driving lights defective Headlight defective. The COMING HOME function turns on the light after turning off the ignition and opening the driver's door. The light switches off automatically after the set lighting time has elapsed. The LEAVING HOME function switches on the light when unlocking the vehicle with the wireless remote control. The system may dazzle other road users if their headlights/lights are not detected for the following reasons, for example: This function is set in the following menu in the Info- tainment system: DIY replacement of the following bulbs is possible. Have the remaining light sources replaced by a spe- cialist garage. The new bulb must conform to the specification of the original light bulb. The name of the bulb is marked on the bulb socket. The high beam assist system automatically switches the high beam on and off. After changing a bulb in the low beam light, the main beam or fog light, have the headlights adjusted by a specialist garage. Halogen lamps are pressurised and can burst during replacement! Risk of accident! Contamination of the halogen lamp reduces the life of the lamp! ▶ Do not touch the glass of the light bulb with your bare fingers. ▶ Wear gloves and safety goggles. ✓ The system is activated. ✓ The light switch is in the   position. ✓ The driving speed is higher than 60 km/h (for some countries, higher than 40 km/h). ✓ The low beam is switched on. ▶ If necessary, manually switch the high beam on or off. ✓ Visibility has worsened. ✓ The light switch is in the   position. The function is activated or deactivated as follows in the Infotainment system in the menu  . Activation/deactivation ▶ The headlights/lights of oncoming vehicles are covered by crash barriers, for example. ▶ The headlamps/lights of the oncoming or preced- ing vehicle are dirty or not functioning. › Manually switch the high beam on or off. › Drive on, exercising appropriate caution. › Seek the help of a specialist garage. › Push the lever in the direction of the arrow.