The mud guards are extra parts that can be added to the player's vehicle. They are installed behind the Tyres and will reduce the rate of speed in which dirt is accumulated on the car during rainy road trips. It costs DM 25, and can only be purchased from Laika Dealerships.
Once purchased, the component will be inside of a cardboard box in front of the laika dealership. The player must use the box behind the tyres, where a glowing silhouette can be found, to install them.
Once installed, the player will be unable to remove the component. It will work passively as the player drives the vehicle, and does not require repairs or cleaning.