Are my electronics dieing for a reason

[esky365]

I have an A6 C5 1.9tdi.

When I got it 12 months ago all the electrics were fine.

Slowly I seem to be losing them.

The door locks often require 3 or 4 presses on the button to unlock.

The beeper that goes off when you open the door with the lights on is very intermittent, usually not working

As I posted before, sometimes when I indicate left, my cruise control disengages

The latest is the death of my parking sensor, it seems to have stopped working, though the dashboard light indicating it is on, still flashes.

None of the above are particularly difficult, but I am worried that they may be indicative of a more serious problem.

I have cleaned and oiled all the fuses, and it made no difference.

Any advice or comments would be good.

Thanks

[Gazwould]

Ccm water damage through ingress ?