[notfarnow]

The rear sway bar mount broke off my dad's car, and he brought it over to have it fixed.

After dropping the sway bar, I had a guy down the road MIG weld the mount.

He insisted that we disconnect the battery before he welds. He said that MIG welding could damage electrical components in the car.

Makes sense, and I was glad to play it safe, but I had never heard of that before. Was he being overly cautious, or can MIG welding (or other types) actually damage electrical components?