2012 Mazda Mazda3 - Animals Nesting Under Hood

Hoe to keep animals from making a nest under the hood of your car

Sadly, you can’t prevent this. Some people use mothballs placed under the hood - not on HOT places! - to some success. There are sprays available to deter critters from nesting. Some work better than others. Try a few, see what works for your critters.

I had this. I just cleaned it out regularly; they gave up eventually. Some gnaw at the wires, so check those for damage. I bet leaving the hood up would work, not that you would want to do that. A cat may go after them.

We use this product in a pole barn where classic vehicles, hot rods, motorcycles, boats, etc… are stored.

https://www.menards.com/main/outdoors/insect-pest-control/animal-traps-repellents/messinas-reg-rodent-stopper-reg-ready-to-use-repellent-spray-32-oz/rs-u-016/p-1444439512206.htm

We have yet to see any signs of critters in the building.

Tester