Well done! now you can start to feel the pain of losing money into cars :P

If it is a ding for the seat belt put the passenger belt in as well and see if it does it.

if your not sure what the dong is for i have no clue, I had a mk1 focus and never heard a ding ever.

As for the wipes, I have no clue again! just as you use your car it should charge the battery, so try it in a couple of days.

Sorry could not really help as such.