I have my Audi q5 2004 and i'm having problem with my door lock while driving my car. Actually the problem is that door locks lock and unlock while driving and when pressing the brake pedal, when I turn the car off and try to lock the doors it unlocks. so i needs a locksmith who can fix this issue but not at very expensive prices so if someone knws about the affordable locksmith kindly suggest me for it.

 

This sounds like your door latch sensor. something to look into.

 

At first need your location then i will suggest you.