You can prevent corrosion. The best way is to keep the car clean. Pay special attention to the bottom of the car.
If you live in the region (country), where your car is regularly exposed to corrosive factors - roads are sprinkled with salt, near the sea, in regions with heavy industrial pollution, acid rain, etc. – You must take special measures to prevent corrosion. In winter, spray the underside of your vehicle with water at least once a month and rinse it thoroughly after the end of the winter period.
When washing the bottom of the car, pay special attention to the parts under the fenders and other parts hidden from view. Do your work carefully. Simply washing rather than thoroughly cleaning accumulated dirt can accelerate corrosion rather than prevent it. Pressurized water and steam effectively remove accumulated dirt and corrosive materials.
When cleaning the door bottom panels, reinforcements and frame parts, make sure that the drainage holes are free so that moisture can evaporate and not accumulate inside, accelerating the appearance of corrosion.
To avoid corrosion, do not leave the vehicle in a damp, poorly ventilated garage. This also applies if you wash your car inside the garage or drive into the garage with a wet, snowy or muddy car. Even keeping a car in a heated garage can contribute to corrosion if the garage is poorly ventilated and moisture does not evaporate.
Keep paint and trim in good condition. Scratched or chipped paintwork should be repaired with repair paint as soon as possible to reduce the risk of corrosion. If you find metal without paint, contact a paint shop.
Don't forget about the interior of the car. Moisture can collect under floor mats and carpeting and also cause corrosion. Take extra care if you are transporting fertilizers, cleaning materials or chemicals in a vehicle. Transport such materials in special containers and wash off any drops or stains with clean water and dry thoroughly.