This included the installation of modified marker lights, removal of some seats to add more standing space giving all coaches 64 seats and space for a wheelchair, installation of an electronic passenger information system, new wheel slide protection equipment and digital traction control to replace the outdated analogue system and installation of a door closing warning beeper.

[citation needed] As with other DART units, they are maintained at Fairview depot, as well as being stabled at Bray.

By January 2013, as reported in the ITG Magazine "Irish Mail" sets 8103, 8105, 8113 and 8138 were temporarily stored out of service.

[3] Four cars (8110-8310 and 8136-8336[citation needed]) were scrapped after suffering serious damage in a fire at Fairview depot on 14 July 2001.

[4] On 13 September 2017 the 16:45 service from Howth to Bray, formed of a six-car 8100 Class unit was derailed on a set of points at Dún Laoghaire station.