2068627/4

New Flying Spur Hybrid - 12 volt battery draining during the charging of the high voltage battery. Customer statement / workshop findings: The 12 volt battery is draining during the charging of the high voltage battery Technical background: Revision history - TPI 2068627/4 Repair guidelines regarding the procedure which must be followed in the event that Static DTC U042300 is evident within address C5 (Thermal Management control unit) after the On Board Charger (AX4) has been replaced.