Specific wiring for retrofitting xenon headlights in conjunction with automatic headlight adjustment for VW Polo 6R The on-board control unit must be replaced when installing xenon headlights - item number: 38106 NOT suitable for vehicles with PR number 7L8 (Start/Stop) Scope of delivery: cable set Notes: After installation, the vehicle must be coded for automatic headlight adjustment In most countries, the headlight adjustment system is required by law in conjunction with xenon headlights