TC reported TIMS showed Obstacle detected at Front DT car 'A4' door when at MSP NB. Fault self clear ed departing MRB NB. Staff (MRB) monitored for 3 stations an d feedback no problem with Front DT car 'A4' train doors. ~~~~~ TC reported TIMS showed Obstacle detected at Front DT- 3603 'A4' door when at MSP NB. Fault self cleared departing MRB NB. Staff (MRB)monitored for 3 stations and feedback no problem with Front DT-3603'A4' train doors. CE:3603 TIMS showed no obstacle detected, A4 door operation ok Depot 3603 A4 train door operational check.  Checked 3603 A4 door- No fault code registered. No FOD found on door guide. Push/pull door found LHS wobbiling due to inner door roller delaminated -Replaced with new roller . Performed door operating & door gauging -OK. Door cyclic 10 times -OK. Aminur/Ridzuan/Fudail/Faiz. 45193