TC reported intermittent BCU fault.Faultself-cleared. Train performance-ok ~~~~~ TC reported intermittent BCU fault.Fault     Found #1549 encountered brake fault.B1 to coast stuck brake.ACU heavy leaking from solenoid coarse exhaust.Replaced ACU and carried out brakes cyclic/function test ok. ACU-New s/n: 1034-045  Old s/n: 1047-079 Not: 2186295 raise to rsw. Done by Jack/Sanip/Firdaus. 05/08/20