2005 BMW 4.8is AIR LEVEL PROBLEMS AGAIN

[Baber9310]

i have a 2005 x5 4.8is, ive been having so many problems with this damn suv, im to the point im tired of messing with it and ready to sell it!. ive had it to 2 shops and 1 BMW dealer and none of them can figure out whats wrong with. first i replaced the air ride supply control module with a used one and had it reflashed, that worked for a day then i took it to the dealer i spent 600 dollars there and they said the module was fine but it needs a right rear sensor, so i had them replace the sensor, so when they went to reprogram it they said that the module wouldnt program and it needs a new module (which is almost 800 dollars) but i got one off ecs tuning for 660. had that programed and now the left front sensor is reading back wards. has anyone ran into that problem? if so please let me know. thanks