Xenon headlight adapter for retrofitting xenon headlights in combination with automatic headlight adjustment The on-board control unit must be replaced when installing xenon headlights - item number 38106 NOT suitable for vehicles with PR number 7L6/7L8 (Start/Stop) Scope of delivery: Xenon adapter Notes: After installation, the vehicle must be coded for automatic headlight adjustment In most countries, the headlight adjustment system is required by law in combination with xenon headlights