Volvo 2005 C70 - Manual (Page 75)

69
Cooling system
The risk for engine overheating is greatest,
especially in hot weather, when:
•
Towing a trailer up steep inclines for
prolonged periods at wide open throttle and
low engine rpm.
•
Stopping the engine suddenly after high
speed driving (so-called ”after-boiling” can
occur).
•
To avoid overheating, the following rules
should be followed:
Do not drive for prolonged periods at
engine speeds above 4500 rpm if you are
towing a trailer in hilly terrain.
Reduce speed and downshift when towing a
trailer up long, steep inclines. The risk of
overheating can be reduced by switching off
the air conditioning system for a short time.
Do not let the engine idle unnecessarily for
prolonged periods.
Do not mount auxiliary lamps in front of the
grill.
When the risk of overheating is imminent, or
in the event of overheating (the temperature
gauge goes repeatedly into, or stays
continually in, the red section), the following
precautions should be taken:
•
Switch off the air conditioning system.
•
Pull off the road, away from traffic, stop the
car and put the gear lever into neutral. Do
not stop the engine!
•
Switch the heater to full (maximum)
position. Increase the engine speed to
approx. 2000 rpm (twice idling speed) until
the temperature begins to drop.
WARNING!
Do not remove coolant expansion tank cap.
The coolant will be extremely hot.
See "Coolant" to check and top-up the coolant
level if necessary.
CAUTION: Drive slowly and carefully if
going through standing water (i.e. flooded
roadways, etc.). Damage to engine could
result if excess water is ingested through the
air intake system.
Never drive the vehicle in water deeper than
1 foot (300 mm).
See flood warning on page 7.
WARNING!
Do not drive with trunk lid open! A warning
light in the instrument panel will indicate
that the trunk is open. Poisonous exhaust
gases may enter via the open trunk lid.
If the trunk lid must be kept open for any
reason, proceed as follows:
• Close the windows.
• Set the ventilation system control to air
flow to floor, windshield and side
windows and blower control to its highest
setting.
Electrical system
When replacing the battery or when carrying
out work involving the electrical system, the
following should be observed:
•
A battery connection to the wrong terminal
will damage the diodes. Before connections
are made, check the polarity of the battery
with a voltmeter.
•
If booster batteries are used for starting,
they must be properly connected to
minimize the risk of the diodes being
damaged. For correct connection, see "Jump
starting" section.
•
Never disconnect the battery circuit (for
example, to replace the battery) while the
engine is running or the ignition is switched
on, as this will immediately ruin the
generator. Always make sure that all the
battery connections are properly tightened.
•
If any electrical welding work is performed
on the vehicle, the battery's ground lead
(negative cable) and all the connecting
cables of the generator must be disconnect-
ed and the welder cables placed as near the
welding points as possible.
•
The radio must be turned off before the
battery is disconnected.
•
The anti-theft code must be re-entered
before the radio will function properly.
•
The electrical system in your car is de-
signed to accommodate Volvo accessories.
It also has an accessory connector located
beneath the dashboard on the driver's side.
Points to remember