Station works were essentially finished by October 2011, and the
Manukau Branch line, a 2.5 km spur line off the
North Island Main Trunk railway, opened on 15 April 2012. Manukau station is the only station on the branch line.The Eastern Line was the second
passenger rail line in Auckland to receive electric train services, following the
Onehunga Line in April 2014.
Electric trains began running on some Eastern Line off-peak services on 15 August 2014, and were gradually rolled out onto all services over the following month. In December 2014, all trains using the Eastern Line began terminating at Manukau rather than alternating between Manukau and Papakura. Similarly, all
Southern Line trains began terminating at Papakura or Pukekohe. In April 2018, Manukau was the 11th busiest train station on the Auckland network with an average of 1,650 passengers on a typical weekday. ==Services==