Pax feedback to staff(YIS) that car 2715was noisy and shaky. Staff(SBW) checked and found no abnorm alities. ~~~~~ Pax feedback to staff(YIS) that car 2715    N Check #2715 underframe found horizontal absorber heavy oil leak at bogie 2 notification raise to RSW to follow up to change out. Not: 2327877 raise to RSW. Checked by Sanip/Faddzal/Koh.  02/11/21