3545 Having Air dryer fault. To check an ~~~~~ 3545 Having Air dryer fault. To check an     Checked and confirmed #3545 Air Dryer no purging.Also observed signs of oil leaking.Further check found #3545 MR tank filled with water.Drain and purged BSR,ASR,MR reservoirs on all cars-confirmed only #3545 MR having water.Replaced #3545 Air Dryer and function teswt able to c/over and purge.Air DRyer fault clear.During c/o found cable label faded-confirmed continuity and marked cable accordingly. Air Dryer: New s/n: 015-14037 Old s/n: 015-12778 Not: 2268174 raise to RSW. Done by Koh/Saini/Din/Zulq. 18/04/21