The €18m mid-life refurbishment programme is being carried out by EMEF at its Entroncamento workshops and involves fitting new seats, interior panelling and lighting, together with modernisation of the bar area and toilets. Passenger Wi-Fi will be improved and power sockets will be provided for all seats.
A new exterior livery is also being applied and mechanical and hydraulic systems are being overhauled as part of the programme.
The fleet of 10 six-car sets was originally supplied by a consortium of Fiat Ferroviaria, Adtranz and Siemens in 1999-2000. The 220km/h trains are primarily used on premium inter-city services from north from Lisbon to Porto and Braga and south to Albufeira and Faro.