[13][14] In February 1981, a further 36 three-carriage units were ordered to provide rolling stock for electrification of services to Petrie and Lota.

[23][24] Units 81–88 were fitted with VHF radios to allow them to operate Sunshine Coast line services from Caboolture to Nambour from 29 April 1988, pending the delivery of the InterCity Express fleet.

[25][26][27] Others appeared on Sunshine Coast services with hand held radios, while 84 and 68 ran through to Gympie North in August 1990.

[28][29] After the InterCity Express units entered service in September 1988, EMUs operated in multiple with them for a period.

[31] Following the introduction of the New Generation Rollingstock (NGR) fleet in 2017, withdrawals began in 2018 with EMU06 the first taken to North Ipswich Railway Workshops for stripping.

[33] Originally it was envisaged all would be withdrawn once all of the NGRs had been delivered, but the remaining EMUs have no scheduled retirement date as of yet.