MG ZS11 Owner's Handbook Manual page 245

Ensure the START/STOP switch is turned off and switch off
ALL electrical equipment of BOTH vehicles, then follow the
instructions below:
1 Connect the RED booster cable between the positive
(+) terminals of both batteries. Connect the BLACK
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), as
far away from the battery as possible and well away
from fuel and brake lines on 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
EMERGENCY INFORMATION
shutting down the engine of the donor vehicle and
disconnecting the booster cables.
Important
NEVER turn on any electrical equipment on the
started vehicle before removing the booster cables.
5 Disconnecting the booster cables must be an exact
reversal of the procedure used to connect them, i.e.
disconnect the BLACK cable from the earth point on
the disabled vehicle FIRST.
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