MG 6 Manual page 232

Remove the ignition key and switch off ALL electrical
equipment of BOTH vehicles, then follow the instructions
below:
1 Connect a booster cable between the positive (+)
terminals of both batteries. Connect another booster
cable from the negative terminal of the donor battery
(A) to a good earth point (an engine mounting or
other unpainted surface, for example), at least 0.5 m
from the battery of the disabled vehicle (B).
2 Check that the cables are clear of moving parts of
both engines, then start the engine of the donor
vehicle and allow it to idle for a few minutes.
3 Now start the engine of the vehicle with the
discharged battery (DO NOT crank the engine for
more than 10 seconds). If the disabled vehicle will
not start after several attempts, it may need to be
repaired. Please contact the MG Authorised Repairer.
4 After both the vehicles have normally started, allow
the engines to idle for more than 2 minutes before
shutting down the engine of the donor vehicle and
disconnecting the booster cables.
218
Emergency Information
5 Disconnecting the booster cables. Disconnecting
NEVER turn on any electrical equipment on the disabled
vehicle before removing the booster cables.
the booster cables must be an exact reversal of the
procedure used to connect them, i.e. disconnect the
BLACK negative cable from the earth point on the
disabled vehicle FIRST.
IMPORTANT