2009 Audi A3 Problems

Fule control module in back seat vibrating around 2000 reves changed module and its improved but still vibrating. Any advice please

The bonnet cable is attached both ends but do not work seems stretched having to use some cable to unlock it at the moment

Driver door not unlocking with key fob unlocking everything else but drivers door have to use key to unlock door it's does work on the odd occasion but have to put key in door to unlock it