MG MG4 Owner's Handbook Manual page 168

STARTING & DRIVING
1 Slow and Fast Charge Port - 7 Pin - Type 2 Plug
2 Rapid Charge Port - 7 Pin and 2 Pin - CCS Type Plug
Note: In order to use the rapid charger socket, the
lower waterproof plug cover will require removal.
After charging, refit the waterproof plug cover (where
necessary), close the charging port door, push the door
fully home until the latch locates.
168
ALWAYS ensure that any excess water is removed from
the port area before connecting any charging device.
Charging Port Electronic Lock
In order to prevent the charging connector and cable being
disconnected inadvertently during charging, the charging
socket features an electronic locking mechanism.
The electronic lock is activated as soon as the vehicle
begins charging, and remains in a locked state until the
charging is finished or interrupted.
Whilst the charging cable is connected DO NOT attempt
to remove the plug.
Manually Releasing the Charging Port Lock in
Emergency Situations
The vehicle features an emergency release device for the
charging port lock.
To access the manual release, remove the trim plate
covering the service access hole on left side of boot -see
picture.