Mercedes-Benz Citaro
Arriva London inherited four Routemaster operator services when it purchased Leaside Buses and South London Transport: routes 19, 38, 73 and 159. Routes 19 and 159 were replaced by one man double deckers and 38 and 73 by Mercedes-Benz Citaro articulated buses. Route 159 was the last London route to be converted on 9 December 2005, bringing 50 years of Routemaster operation to a close.