Between 2002 and 2004, following an order for 155 Siemens Combino trams (nos 2001-2151 and 2201-2204), the existing tram fleet was largely renewed. Four of the Combinos were specified as bidirectional vehicles, for use on line 5 to Amstelveen. By mid-2004, 155 Combinos had been delivered. As a result, the last old articulated cars of the 1960s were removed from service in March 2004. However, between 2004 and 2008 all of the Combinos had to be taken progressively out of service for repairs and strengthening, to correct their many structural faults.