 Thameslink received some extra Class 319s from Southern in 2004.From September 2004 until May 2005, Class 317s were hired from West Anglia Great Northern to operate Bedford to St Pancras services while the Thameslink line was severed for six months for the new St Pancras station to be built.Thameslink's fleet was originally maintained at Selhurst Depot under sub-contract by Connex South Central/Southern.