The MR was unhappy with the performance and safety record of the D Class locomotives, and sold them to other railways between 1916 and 1922, replacing them with A class locomotives.
Metropolitan Railway var utilfreds med præstationerne og sikkerheden ved D Class lokomotiverne og solgte dem til andre jernbaneselskaber mellem 1916 og 1922 og erstattede dem med Metropolitan Railway A Class lokomotiver.