GTi Headlight auto level & no ECU connection

[aSilkPurse]

Hi, so i was having really bad mpg fuel issues (2000, GTi, ARC eng), trying to track a problem has been tricky as I also had intermittent/no OBD connection to ECU, checked all the wiring and all good. Then, both of the headlight leveling motors started ranging wildly and constantly. I never noticed this before but something may have been on its way out, disconnected the auto leveling sensor on the rear axle and all ECU/OBD connections came back and mpg wet back to normal. Headlight aim is now wrong! I am trying to source a new sensor (part No-6N0907503) but they are like like hens teeth or stupid money.
Does anyone know of or have any reasonable priced second hand working ones?
My other option is to fit a manual adjust on the dash but this is not strictly 'legal' with the xenon headlights?