The salt that is used for salting the roads in the winter accelerates the corrosion of automobile bodywork. Even if a car is fairly new, it will start corroding sooner or later, so it is prudent to appropriately protect the car chassis. You can entrust this work to a professional, but it will cost you around 100€. Fortunately you can do this yourself and consequently save some dough. How? Like this.
If it is possible, lift the car from the ground, for example drive onto a hill sideways, or if you can’t, take a car jack and gradually lift and support the car. You absolutely have to make sure that the car is firmly fixed in place. Wash the chassis thoroughly, preferably using a pressure washer, and leave the water to drain.
A lot of different sprays exist that provide basic protection, but the spray with the best results is Krown (a 250ml can costs about 6€). You can use Krown to spray the whole chassis, but we discourage spraying the exhaust. You can spray the vital parts as well, because it also works as a lubricant. Krown is mainly excellent for the bodywork, but we recommend the following technique for the chassis.
If you want to do this a bit more professionally, first use a diluter to degrease the greasy parts after washing the chassis. In case you find some rust, you can try to remove it with a wire brush and then apply anti-corrosion coating (Ferrosan) on the corroded parts. Next, apply the protective anti-corrosive coat. An excellent choice is Antikorozin, which you can get in almost any paint store. We recommend putting on 2K paint over everything after applying the Antikorozin. Consult with a paint salesman, he will be happy to help you.
The work is finished and if you have any time to spare, you should check how to prepare your car for winter. Have a nice day!