Overview

• ADAC advises against using winter tyres older than eight years even if sufficient tread remains.
• Germany’s legal minimum tread depth is 1.6 millimeters, but clubs recommend at least 4 millimeters for winter use.
• The DOT code’s final four digits show production week and year, allowing drivers to verify a tyre’s age before fitting.
• For new purchases, ACE recommends stock no older than 18 months and ADAC sets a maximum of 24 months to ensure fresher rubber.
• An explicit six‑year replacement rule applies only to 100 km/h‑approved trailer and caravan tyres, and a DEKRA study links rising failure risk to tyres from about six years of age.