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I have a 2006 330xi. The right bulb goes out after about 15-20 minutes. I had a technician check the power to each headlight which apparently should be between 8-10 volts. The right measures about 1.75, but when the left side is disconnected it jumps up to about 7-8 volts. Plug the left back in and it drops back down. I know they are both connected via LIN. Technician recommends replacing left module as it may be defective, drawing a lot of the power away from the right side. Thoughts??
Last edited by adg8165; 11-27-2021 at 01:27 PM.
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