What is the legally prescribed minimum tread depth across the main profile of all the tyres on your car?

In Germany, the law requires that the tread depth on all tires of a vehicle must be at least 1.6 millimeters across the main tread profile. This minimum ensures sufficient grip on the road, especially in wet conditions, reducing the risk of skidding and accidents. Tires with less tread depth than 1.6 mm are considered unsafe and can lead to penalties or the vehicle failing safety inspections. Maintaining proper tread depth is crucial for effective braking, handling, and overall driving safety.