I've heard from several (non-professional) sources that a good way to remove minor door dings is to use dry ice. Is this right? What precautions should one take?

Since we lost a number of posts due to the data corruption, I will ask again...

Who can tell me about using dry ice to remove small dings?

Dry ice
 

What I heard was to warm dent with hair dryer. When metal is too hot to touch, then apply dry ice to dent. I can check with the body shop we use. He's a good guy and does excellant work.

Thanks, Joe. Maybe I'll try your method on an inconspicuous area. I wonder if it would be best to heat the metal from the inside (removing door panel) in order to avoid damaging the paint...

Since my reply was lost, I will say again...

Paintless dent repair is the best way to go. Before then, body shops used to heat the metal around the affected area. When the metal cooled, it shrunk and the dent dissapeared. The problem with this method is that over time, the paint would discolor on the affected area due to the application of heat.

You may be able to find a shop that will fix several of them for a fair price.

I just got three of tham taken out of my ML only to have my 6-yr old daughter plant another one on the same location!!!
Chasing dings is a never-ending fight!!

I totally support what G-Benz has said -- paintless dent repair is the only smart way to go. As long as the dings have not broken the surface of the paint, you are smart to have a pro do the work. Many of them price their work on a 'per panel' basis, which can save some money on multiple parking lot rash type problems and the results can be very, very good.