The vehicles were included in the 1970s refurbishment programme, bringing improvements to passenger (and staff) comfort and a refreshed modern interior. As standard with most classes, vestibules were covered with orange coloured formica and seat moquette was a blue check pattern in second, an orange/brown in first. The floor colours matched with blue lino in second and orange/brown carpet in first. Fluorescent lights replaced the tungsten type.
The toilet was refitted with a plastic / fibreglass sink unit and off-white formica. The heating was upgraded, with the heater intake on the DMBS moved to a grille on the drivers side of the bodyside (involving turning a two-seater 90 degrees). Other external changes saw the two-character route indicator removed and two lower marker lights added. In some cases the top lamp was removed. The exhaust system was upgraded to add additional silencers.
The white / blue stripe livery was used. The photographs below are from the works album (pictured above) entitled "Refurbished Class 114/148 D.M.U. Production".
Description: Cab Design
Description: Power Train
Diagrams & Works Photos
Details about preserved Class 114s can be found here.