The work is split between fleets in service with two operators. Work on 24 two-car vehicles operated by Transport for Wales, which require a full vehicle and bogie C4 overhaul, will begin in August 2020 and will be completed by December 2022. The 16 two-car vehicles operated by East Midlands Railway require a C4 bogie overhaul with work set to start in June and conclude by November 2021.
Wabtec will overhaul the trains at its E2 workshop in Doncaster. Bogies, components and wheels will be also overhauled at the site.
Wabtec undertook a previous C4 overhaul of the vehicles and has been maintaining the fleets for more than 10 years.
