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How to prevent rodents from overwintering in your engine?

  • Post category:Economy News
  • Reading time:5 mins read

Whether you live in an urban or rural area, the problem is the same. As soon as it starts to get cold, rodents of all kinds seek shelter. And what could be warmer and more comfortable than an engine… Whether you’re the proud owner of a luxury sedan, an old clunker or a collector’s vehicle, they’re nothing to look at. And even if your car is sleeping in a closed garage, they still find a way through. Sometimes all it takes is a small space of less than 6 cm to allow them access to your vehicle. Their installation would not be a problem if they did not corrode the electric cables, the ignition harnesses, the hoses and even the insulating padding, going so far as to infiltrate the muffler, and sometimes causing for several thousands of euros in damage in less than 24 hours.

Why are motors so attractive to rodents?

This phenomenon has always existed but it has become more pronounced due to the ecological transition. Indeed, rodents are very fond of cable components and mechanical elements made from biomaterials. From tires to interior elements, cars with more and more materials of this type, rodents can even consider breeding there, especially if your vehicle remains idle for long periods of time.

Aerosol rodent repellents should be applied as a spray every eight days or so. Very effective, they prevent infestations throughout the winter period.

How to avoid installation?

Several precautions must be taken to prevent rodents from settling permanently:

  • Avoid leaving leftover sandwiches, crumbs and packets of candy, the smell of which will attract them, in the passenger compartment.
  • Likewise, do not store food near your vehicle. It is better to ban the dog’s bags of kibble from the garage. They love it too!
  • Do not leave your vehicle immobile for several days in a row. Change it regularly if you park it outside.
  • If your car is sleeping in the garage, leave the hood open so they don’t feel too good in the dark.
  • If you have a cat, let it access the garage at will. Very often its very smell will deter invaders.
  • Place traps for rats and mice under or near the vehicle.
  • Use olfactory rodent repellents, which you will find in auto centers, to spray in the engine compartment and in the passenger compartment. In aerosols, these products offer good protection for about a week, without leaving an undesirable odor in the passenger compartment or staining the treated surfaces. A protection that must of course be renewed after a few days.
  • Finally, you can place an ultrasonic pest control box in the engine compartment when your vehicle is parked. You will find some from 25 €. Some models are more specifically suited for martens, weasels, or rodents in general. They can run on batteries, mains or be connected to the car battery. Some models are even equipped with high-voltage discs which send a shock to the unwanted animal. These ultrasonic boxes emit a noise inaudible to the human ear but totally unbearable for rodents. Be careful however, choose a device that allows you to vary the frequencies of the ultrasounds. Otherwise, the animals end up getting used to it and your box will no longer be of any use to you. Of course, don’t forget to remove it before taking your car out of the garage!
This Ultrasonic anti-mouse ultrasonic device is hardwired and powered by your vehicle's battery.
This Ultrasonic anti-mouse ultrasonic device is hardwired and powered by your vehicle’s battery.

In the event of damage, can we claim our insurance?

If you benefit from a “mechanical breakdown” guarantee as part of your car insurance, your insurer can guarantee you the financial support of the repairs. Mechanical breakdown cover allows the insurer to cover repair costs related to the repair of the vehicle in the event of a breakdown or accidental immobilization. But it is better to check that rodent damage is part of it. That said, your annual premium may suffer. To save money, it is best to avoid the intrusion of undesirables.