Once again, ECS shows true dedication in product development for Mk4 Golf / Jetta owners. This ECS Stage 1 leveling harness kit is a true plug-n-play option to get those leveling motors to operate using the included switch. One of the nicest features of German automobiles is the ability of adjusting headlight height from inside your vehicle. Until now this was a somewhat complex job with internal headlight wiring needed. ECS Tuning makes this simple with dedicated harnesses that make this modification a complete plug-n-play operation. Simply connect the "power up" harness to your headlights, run the leveling trigger wire, install the leveling switch and you have leveling headlights.