They entered service on 1 February 1986, originally in the Bilbao-Plentzia line, where they replaced the rolling stock inherited from FTS.

Thus, with the opening of the metro in 1995, the trains were transferred to the Txorierri, Urdaibai and Bilbao-San Sebastián lines.

In 1996, 10 of them had a fourth car added, with the tree-car trains being used together with the 3500 series in the Urdaibai and Bilbao-San Sebastián lines.

[3] Starting in late 2017, the last 200 series units were retired from active service, with the trains being put up for auction in January 2018.

[4] On 24 November 2018, the last remaining unit was retired after a farewell trip, the train was then sent to the Basque Railway Museum for preservation.