According to the calendar, it's already spring, but looking out the window makes one wonder if it's really time to get out the summer tires yet. "According to the temperature, winter tires are still compulsory", driving instructor peter seidenath from stegaurach also confirms to his students in theory lessons.
According to road traffic regulations, winter tires are required only in bad road conditions, i.E. Black ice, slippery snow, slush, ice or frost – but not for a certain period of time or for certain temperatures. In the tire industry, however, the "seven-degree limit" is referred to as the "salt limit" accordingly, they should only be changed at temperatures above seven degrees celsius.