Engine Overheating - Maserati GranTurismo Owner's Manual

In an Emergency
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Engine Overheating

To reduce potential overheating of the
engine in city traffic, while stationary,
place the transmission in N (Neutral)
mode, but do not increase the engine
idle speed.
NOTE:
There are steps that you can take to
slow down an impending overheat
condition:
• If your air conditioner (A/C) is on, turn
it off. The A/C system adds heat to the
engine cooling system and turning the
A/C off can help remove this heat.
• You can also turn the temperature
control to maximum heat, the mode
control to floor and the blower control
to high. This allows the heater core to
act as a supplement to the radiator and
aids in removing heat from the engine
cooling system.
CAUTION!
Driving with a hot cooling system could
damage the engine. If the temperature
gauge is positioned on the red zone "H"
(refer to "Instrument Cluster Overview"
in section "Dashboard Instruments and
Controls") and the red warning light
comes on, pull over and stop the vehicle.
Idle the vehicle with the air conditioner
turned off until the temperature gauge
drops back into the normal range. If the
temperature gauge remains on the red
zone "H" and the red warning light
stays on, turn the engine off immediately
and contact the Service Network.
WARNING!
You or others can be badly burned by
hot engine coolant (antifreeze) or steam
from your radiator. If you see or hear
steam coming from under the hood, do
not open it until the radiator has had
time to cool.
Never try to open a coolant bottle
pressure cap (refer to "Maintenance
Procedures" in section "Maintenance
and Care") when the radiator is
overheated.