Mazda 6 – Xenon…

I have the following problem with my Xenon burners… On the left (driver side) the burner of my M6 BJ 03/2004 “below” stops, while the right adjusts quite normally, depending on the loading condition. The problem occurred the first time after the tyre change. Even after several days no change. -^-> Visit to the friendly MH: error memory read out, EVERYTHING i.o.! ECUs are OK! …could hang the engine of the height adjustment, I should drive a bump road, v ichlicht it works, otherwise a new headlight housing… (450€) HAAAALLLOOO? Well, it worked anyway! Holperstraße long ironed and the headlight height adjustment worked again perfectly. …BIS… My car was last for inspection! After that I had the same problem again, only that the trick with the holper track did not work anymore! Did transitional way by screwdriver the light width “adapted”. (but is not permanent condition) I assume that possibly. a sensor for the loading condition is defective. But where does this one sit which one? CAN MIR IRGENTWHERE TIPS BEING OR BETTER WITH FUNDED KNOWLEDGE FAITH?