This is actually a fairly common issue when retrofitting newer or larger projectors into the RX330/RX400h AFS headlights. Based on your description: The AFS mechanism is working because the projector moves up/down during self-leveling. The left/right swivel function is being mechanically blocked. The most likely cause is that the newer projector's lens holder or shroud is larger than the OEM unit, and it contacts the chrome bezel (inner trim) before the AFS motor can complete its travel. What usually causes it?The 2007 RX400h factory AFS system was designed around the dimensions of the original Koito projector. When installing projectors such as: Hella E55 Koito Q5/Q5-R AL Bosch NHK Aozoom Other aftermarket bi-xenon projectors the lens frame often sits farther forward or has a larger diameter. The chrome trim inside the housing becomes the limiting stop for AFS movement. How to verifyWith the lens removed from the vehicle: Command the AFS left/right movement. Watch the projector from the rear of the housing. Identify exactly where contact occurs: projector lens to chrome bezel shroud to chrome bezel projector body to reflector housing AFS frame contacting the housing You may even see polished or rubbed spots on the chrome trim. Typical solutions1. Trim the chrome bezel (most common)Many retrofitters carefully relieve the inside opening of the chrome trim. Remove only the area causing interference. Maintain the visible front appearance as much as possible. Smooth the edge after trimming. Repaint with chrome-effect paint if the cut area is visible. Usually only a few millimeters of clearance are required. 2. Reduce projector protrusionIf your custom brackets allow adjustment: Move the projector slightly rearward. Center it within the bezel opening. Ensure the projector is not tilted. Sometimes moving the projector back 2-3 mm provides enough AFS clearance. 3. Modify the AFS mounting frameIf the projector adapter or custom bracket places the projector off-center: Re-drill or slot the mounting holes. Reposition the projector closer to the AFS pivot centerline. This reduces the arc that the lens travels during swiveled operation. 4. Use a smaller shroudIn some retrofits the lens itself clears, but the decorative shroud hits the bezel first. Check whether: the lens clears the shroud is actually what's contacting If it is the shroud, changing to a smaller one is preferable to aggressive chrome bezel trimming. What I would do firstBefore cutting anything, check whether the interference is from: the lens holder, the projector shroud, or the actual projector body. If the projector is centered correctly on the AFS frame and only the front lens area touches the chrome trim, then carefully trimming the chrome bezel is usually the accepted fix and is often required when using larger retrofit projectors in RX400h AFS housings.