Predictably things did not improve. A B.R. survey showed an average of 12 passengers on each Saturday train. This service, which only ran until mid-afternoon, was withdrawn completely from 2nd January 1967, and later that year the weekday service to London was reduced to peak hours only. By 1976 the number of passengers travelling to London by this route had dropped to a mere handful and so from the start of the new timetable the service was reduced to a shuttle between Sanderstead and Elmers End. There had always been the odd train stopped short at Selsdon due to the problems of interleaving the branch trains with the Oxted service, especially if either service was running late. 

Since electrification the Sanderstead to London service has been the only passenger use of the line, except on rare occasions when specials have visited the line, or it has been used as a diversionary route. Perhaps the most unusual of these occurred on the night of 20th March 1954, when the Brighton line was closed north of East Croydon due to re-signalling work.
The 21 28 Margate to London Bridge mails ran normally as far as East Croydon where N class No.31871 was attached at the rear and with the train engine U1 No. 31893 now assisting from behind, ran back to Selsdon where the few passengers were detrained while the train was shunted to the up branch platform. The train then proceeded to London Bridge via Elmers End & Parks Bridge Junction with the original engine once more in charge. The 04.44 London Bridge to Brighton headed by 34039 "Boscastle" was routed non-stop to Preston Park via Woodside, Selsdon, Oxted, Horsted Keynes and Haywards Heath. However the train was halted at Selsdon to detach the Bognor Portion which was taken by 31871 to East Croydon where it resumed its normal pathway. The 01.33 vans and the 00.36 empties from East Croydon joined forces at Selsdon for the run to Victoria via Lewisham and Nunhea

On the 19th March 1967 a special organised by the Southern Counties Touring Society ran from Victoria to Eastbourne via Nunhead and Selsdon, hauled by West Country 34108 "Wincanton".

The local paper advertised the train as the last steam hauled train to pass through Croydon and so attracted a lot of local interest. The enterprising booking clerk at Selsdon opened the office especially for the occasion and sold 121 platform tickets. Other unusual stock to traverse the line on special runs include the Hastings unit 1036, D6529 with a 3TC set 422. In the closing years the only stock seen on the line in regular service had been 2 EPB.

Two weeks earlier 34102 'Lapford' passes Coombe Road with an LCGB Rail Tour. Photo J Scrace