Kent services that would replace slam-door 4CEP units. They were refurbished at Eastleigh Works, including the installation of 2+2 seating and wheel-in cycle racks in the centre cars, and reclassified as the Class 508/2 (508201-212). Their main duties included to , to , to and to , as well as to for a short period. Units were based at Gillingham Depot.

Due to