Swedtrac will upgrade a total of 227 vehicles in a project which will increase seating capacity by 15%. All seating, carpets, interior panelling, and luggage racks will be replaced and the trains will be equipped with a redesigned bistro and kitchenette in first class.

Prose, Switzerland, which advised Swedtrac during the bidding phase, will be responsible for project management, electrical and mechanical engineering, certification and Rams.

The interior refurbishment is part of an SKr 3.5bn modernisation programme for the X2000 fleet, which also includes renewal of electrical systems. In January 2014 SJ awarded ABB a $US 200m contract to replace traction converters, transformers, battery chargers, train control systems, and passenger information and entertainment equipment.

The refurbishment programme is due to be completed in 2019.