What total mass must a truck with trailer (two-axle truck, three-axle trailer, not combined traffic) not exceed?

In Germany, for a truck with a trailer that is not used in combined traffic, the maximum total permissible mass depends on the number of axles on the truck and trailer. For a two-axle truck combined with a three-axle trailer, the total mass must not exceed 40 tons. This limit ensures safe handling and prevents excessive road wear. The 38-ton and 44-ton limits apply to other vehicle configurations or special cases, but for your described combination, 40 tons is the correct maximum allowed total mass. Remembering this rule helps when considering vehicle weights for different axle counts in driving tests and practical situations.