Trials indicated that equipping the V100 with a 1, 350 HP engine also permitted the locomotive to be deployed on main railway lines. In doing so, the side cooling blocks were also practically enlarged in order to increase the cooling capacity. From V100 2020 onwards, this required an extension of the engine front end by 200 mm which was compensated for by buffering.the locomotive frame and resulted in a new length over buffers of 12, 300 mm. In terms of design, only the length of the circumferential sheet metal needed to be adjusted. However, the biggest difference to the V100.10 is the omission of the protective grating in front of the cooler shutters that were now exposed.