Naqvi

I have Audi Q7 2008. Which has been parked on drive over a year I thought to give it a good clean and put it back on road. It has a panoramic room which has been leaking on amplifier so I cleaned it all up.
I did manage to start the car up and mmi screen keeps turning off so i did manage to bypass the amplifier with a cable .
the suspension are really low and the lights are flashing to raise suspension but when the mmi screen comes on the suspension option is not there.
Someone said there should be a button in the boot to raise the suspension but the button is not working.
can anyone help on this.
Please.