Using the vehicle in a a manner that causes discomfort associated with excessive emissions to the environment or excessive noise is:

In accordance with Art. 60 para. 2 pt. 2 of the Road Traffic Act, it is forbidden to use a vehicle in a way that causes nuisance related to excessive exhaust emissions or noise. Such a vehicle is considered technically defective, and continuing to drive it may result in a fine and the confiscation of the registration certificate.