2012 RX350 - AFS HID Xenon headlamps
 

I recently purchased a 2012 Lexus RX350 AWD with 62,000 miles. I purchased from a non Lexus dealer. Two weeks later i started to get high beam flashes at me and found that my passenger light was locked on High beam. I took it into Lexus today....$3300 to replace the assembly. I nearly had a stroke. The service rep suggested i could find one on EBAY which i did for $348, so i plan to DIY. Does anyone have advice on disassembly instructions? I cant seem to find the old trust worthy YouTube. The service rep said that the gate that switches from low to high beam is frozen in the high beam position?