The intermediate cars sit on type "MD 530" bogies with steel suspension and an axle base of 2500 mm. New wheels have a diameter of 920 mm. They are replaced when they reach a diameter of 860 mm. The cars are coupled 900 mm above the rails by a semi-automatic coupling that was designed specifically for the ICE 1. It couples two brake pipes, two electric trainlines, cables and two fibre optic cables. The passage between two cars is 1.1 m wide and 2.05 m high. Unlike on the InterCityExperimental, they are not positive locked on the outside.