How to remove hard water stains(sprinklers)from my black car?

[Sweetiepie]

I have a black Honda Accord. The drivers side has many water stains from parking next to the sprinklers. Both on the windows & the paint. The windows are tinted. What is a safe product I can use on it? Windex did not work. By the way,I am now parked in the garage to prevent this from happening more.

 

[firstfallenangelsatan]

use a clay bar it will remove the stains then you can buff to a high gloss with eagle one nanowax. believe me this is the best wax i have ever used. even better than mothers or meguires wax and it is so easy to put on and take off without leaving any haze.

 

[HonsellT]

Use an expensive wax and buff it out. Black cars are the worst for keeping the finish looking like new.

 

[schurz04]

Dont use windex on the paint, as it will take the wax off. Im surprised that just washing it wont take the stains off.

Generally tint is on the inside of the window. You can try a razor blade to scrape the calcium deposits off.

For the body, if just washing doesnt work get a "clay bar" kit from any auto parts store, they run 10-20 buck. The Maguires one is one of the better ones.