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On next being tendered it returned to Arriva London's Croydon garage on 30 August 2008 with new Alexander Dennis Enviro400s were introduced. Arriva have retained it in subsequent tenders commencing in August 2013 and August 2020.
Electrical problems on the vehicles led to reliability issues. In October 2008 the route was criticised for seeing too many southbound journeys turn short at Old Coulsdon. Residents began a petition to improve reliability on the route, receiving around 700 signatures by December 2008. On 17 January 2009, Arriva introduced extra vehicles to the 466 to allow longer layovers and reduce the need to turn journeys short.