 From 2014, 160 out of the operational fleet of 196 1000 series started undergoing a programme of life-extension refurbishment.The refurbishment includes the replacement of the existing traction motors with new 190 kW AC traction motors, silicon carbide inverter traction control, and new air-conditioning units with 8% higher capacity.The interiors were completely refurbished with LED lighting, LCD passenger information displays above the doorways, and new moquette seat covers.