Although still working motor trains successfully, the class in general were becoming worn out. The D3s were replaced by former South Eastern H class and South Western M7 class tanks engines during the early 1950s. Most were withdrawn by 1953, but one, 32390, remained in traffic for two more years until being cut up at Brighton Works in 1955.
Despite continuing to operate effectively as motor trains, the class was generally showing signs of wear. The D3s were replaced by engines from the former South Eastern H and South Western M7 classes during the early 1950s. Most were retired by 1953, but one, 32390, continued in service for two additional years before being dismantled at Brighton Works in 1955.