TIMS showed rear M2 car air-con compressor fault #2-1, #2-2; rear M2 car air-con coolant pressure fa ult #2 set. Staff (MSL) checked and confirmed rear M2 car #2set air-con faulty. Reset - ok. Car was cooling. ~~~~~ 2509 TIMS showed A/C 2-1, 2-2 compressor fault. Staff (MSL) confirmed 2509 A/C 2 faulty. Reset - ok. Car was cooling.  2509 A/c 2-1 charged in 1kg of 407C freon. Tightened suction connector union. 2509 A/c 2-2 charged in 1kg of 407C freon. Tightened suction v/v. Function check - OK. Saloon temp. 24'C.  Azmi/Hanafi 43980