Hey i have a 2005 audi a4 1.8t and i just have ran into a problem my windows in my car the front passenger control does not work at all and only i can roll the window up and down with the driver controls (yes i have played with the child lock it is not the reason). And my 2 back windows the passenger controls roll them down but only my driver control can roll them back up, can anyone tell me what is going on and how expensive the fix will be?