2009 VOLVO XC90 coolant temperature

02 Instruments and controlsInstrument panel
0254
Instrument panel
G027133
Turn signal indicators – right/leftText window – The text window displays
information and warning messages.Temperature gauge – The pointer should
be approximately midway on the gauge
when driving. Do not drive the vehicle if
the warning light is on. The text window
will provide you with additional informa-
tion. If the engine temperature remains
high, check coolant level – see page 211.Trip odometer – The trip odometers are
used for measuring shorter distances. The
right-hand digit gives tenth of a mile/kilo-
meter. Press the button for more than
2 seconds to reset. Change between tripodometers 1 and 2 using one short press
on the button. – The display presents infor-
mation and warning messages, the ambi-
ent temperature, and the clock, etc. When
the ambient temperature is between 23°
and 36 °F (–5° and +2 °C), a snowflake
symbol is shown in the display. This sym-
bol serves as a warning for possible slip-
pery road surfaces. Please note that this
symbol does not indicate a fault with your
car. At low speeds, or when the car is not
moving, the temperature readings may be
slightly higher than the actual ambient tem-
perature.
Odometer
SpeedometerWarning symbolHigh beam indicatorTachometer – The tachometer shows
engine speed in thousands of revolutions
per minute (rpm). Do not drive continuously
with the needle in the red area of the dial,
which indicates maximum allowable
engine rpm range. Instead, shift to a higher
gear or slow the vehicle down. The engine
management system will automatically
prevent excessively high engines speeds.
This will be noticeable as a pronounced
unevenness in engine speed.

06 Starting and drivingTowing a trailer
06152
NOTE
•
Recommended hitch tongue load:
not more than 10% of the trailer's
weight. The trailer load should be posi-
tioned so that it does not shift and the
tongue load should be 10% of the trail-
er's weight. However, the tongue load
should not exceed the maximum per-
missible weights indicated in the table
above.
•
When towing trailers without brakes,
the maximum permissible trailer weight
is 1,700 lbs (750 kg).
•
If necessary, redistribute the weight of
any cargo in the trailer to avoid exces-
sive weight on the trailer hitch.
•
The maximum trailer weight listed in the
table for All Wheel Drive models,
5,000 lbs (2250 kg) is only applicable
when there are not more than two occu-
pants in the vehicle, in the front seats,
with a combined weight of 300 lbs
(135 kg), with no other cargo in the vehi-
cle.
•
The maximum weight listed for Front
Wheel Drive models, 4,000 lbs (1800 kg)
is only applicable when there are not
more than four occupants in the vehicle,
in the front seats and second row of
seats, with a combined weight of
600 lbs (270 kg), with no other cargo in
the vehicle.
NOTE
•
Vehicles used for towing a trailer on a
regular basis, or for long-distance high-
way towing should be equipped with an
automatic transmission oil cooler and
Volvo's automatic self-leveling system
for the rear suspension. Consult your
Volvo retailer.
•
Volvo recommends the use of Volvo
trailer hitches that are specially
designed for the vehicle.
•
All Volvo models are equipped with
energy-absorbing shock-mounted
bumpers. Trailer hitch installation
should not interfere with the proper
operation of this bumper system.
•
Increase tire pressure to recommended
full inflation pressure. See chapter
"Wheels and tires."
•
When your vehicle is new, avoid towing
heavy trailers during the first 620 miles
(1,000 km).
•
Engine and transmission are subject to
increased loads. Therefore, engine
coolant temperature should be closely
watched when driving in hot climates or
hilly terrain. Use a lower gear and turn
off the air conditioner if the temperature
gauge needle enters the red range.

06 Starting and driving
Cold weather precautions
06
157
If you wish to check your vehicle before the
approach of cold weather, the following advice
is worth noting:•
Make sure that the engine coolant contains
50 percent antifreeze. Any other mixture
will reduce freeze protection. This gives
protection against freezing down to –31 °F
(–35 °C). See section "Coolant".
•
The use of "recycled" antifreeze is not
approved by Volvo. Different types of
antifreeze must not be mixed.
•
Volvo recommends using only genuine
Volvo antifreeze in your vehicle's radiator.
Your Volvo retailer stocks plenty of Volvo
engine coolant to protect your vehicle dur-
ing cold weather.
•
Try to keep the fuel tank well filled – this
prevents the formation of condensation in
the tank. In addition, in extremely cold
weather conditions it is worthwhile to add
fuel line de-icer before refueling.
•
The viscosity of the engine oil is important.
Oil with low viscosity (thinner oil) improves
cold-weather starting as well as decreas-
ing fuel consumption while the engine is
warming up. For winter use, 5W-30 oil, par-
ticularly the synthetic type
1, is recom-
mended. Be sure to use good quality oil but
do not use cold-weather oil for hard drivingor in warm weather. See section "Engine
oil" for more information.
•
The load placed on the battery is greater
during the winter since the windshield wip-
ers, lighting, etc. are used more often.
Moreover, the capacity of the battery
decreases as the temperature drops. In
very cold weather, a poorly charged bat-
tery can freeze and be damaged. It is there-
fore advisable to check the state of charge
more frequently and spray an antirust oil on
the battery posts.
•
Volvo recommends the use of snow tires
on all four wheels for winter driving – see
section "Wheels and tires."
•
To prevent the washer fluid reservoir
from freezing, add washer solvents con-
taining antifreeze (see page 211 for the
location of the washer fluid reservoir). This
is important since dirt is often splashed on
the windshield during winter driving,
requiring the frequent use of the washers
and wipers. Volvo Washer Solvent should
be diluted as follows:
•
Down to 14 ° F (–10 ° C): 1 part washer
solvent and 4 parts water
•
Down to 5 ° F (–15 ° C): 1 part washer sol-
vent and 3 parts water
•
Down to 0 ° F (–18 ° C):1 part washer sol-
vent and 2 parts water
•
Down to –18 ° F (–28 ° C): 1 part washer
solvent and 1 part water
•
Use Volvo Teflon Lock Spray in the locks.NOTE
Avoid the use of de-icing sprays as they can
cause damage to the locks.W – Winter/Wet driving mode – enhanced
vehicle traction•
Mode W will only function if the gear selec-
tor is in the (D)rive position.
•
Press the button at the base of the gear
selector to engage/disengage this driving
mode.
•
An LED in the button will light up to indicate
that W is engaged and this will also be dis-
played in the instrument panel (see
page 54).
•
This mode may be selected for starting/
moving off on slippery roads.
1Synthetic oil is not used when the oil is changed at the normal maintenance service intervals except at owner request and at additional charge. Please consult your Volvo retailer.

09 Maintenance and servicingWorking on your vehicle
09206
Belt checkCheck the belt regularly to make sure it is in
good condition and is clean. A worn or dirty belt
can cause poor cooling and low alternator out-
put as well as impair the operation of the power
steering and the air conditioning unit.
NOTE
The drive belt is equipped with a self-ten-
sioning mechanism and requires no adjust-
ment between changes.
WARNING
The engine must not be running when this
check is performed.Check coolant levelThe cooling system must be filled with coolant
and not leak to operate at maximum efficiency.
Check the coolant level regularly. The level
should be between the MAX and MIN marks
on the expansion tank. The check should be
made with particular thoroughness when the
engine is new or when the cooling system has
been drained.
Do not remove the filler cap other than for top-
ping up with coolant. Frequent removal may
prevent coolant circulation between the engineand the expansion tank during engine warm up
and cooling.
Changing coolantNormally, the coolant does not need to be
changed. If the system must be drained, con-
sult a trained and qualified Volvo service tech-
nician.
Do not top off with water only. This reduces the
rust-protective and antifreeze qualities of the
coolant and has a lower boiling point. It can
also cause damage to the cooling system if it
should freeze. Top off with Volvo Genuine
Coolant/Antifreeze only (a 50/50 mix of water
and antifreeze.
CAUTION
The cooling system must always be kept
filled to the correct level. If it is not kept filled,
there can be high local temperatures in the
engine which could result in damage. Dif-
ferent types of antifreeze/coolant may not
be mixed.
WARNING
Never remove the radiator cap while the
engine is warm. Wait until the vehicle cools.

09 Maintenance and servicing
Fluids
09``211 Washer fluid reservoir
G027097
Washer fluid reservoirThe washer fluid reservoir is located in the
engine compartment and holds approx.
6.8 US qts (6.5 liters).
When there is less than approximately 1 US qt
(1 liter) remaining in the reservoir, the washer
fluid spray will be directed to the windshield
only.
During cold weather, the reservoir should be
filled with windshield washer solvent contain-
ing antifreeze.
Changing coolant
G027087
Coolant reservoirNormally, the coolant does not need to be
changed. If the system must be drained, con-
sult a trained and qualified Volvo service tech-
nician.
CAUTION
•
If necessary, top up the cooling system
with Volvo Genuine Coolant/Antifreeze
only (a 50/50 mix of water and anti-
freeze).
•
Different types of antifreeze/coolant
may not be mixed.
•
If the cooling system is drained, it
should be flushed with clean water or
premixed anti-freeze before it is refilled
with the correct mixture of water/anti-
freeze.
•
The cooling system must always be
kept filled to the correct level, and the
level must be between the MIN and
MAX marks. If it is not kept filled, there
can be high local temperatures in the
engine which could result in damage.
Check coolant regularly!
•
Do not top up with water only. This
reduces the rust-protective and anti-
freeze qualities of the coolant and has a
lower boiling point. It can also cause
damage to the cooling system if it
should freeze.
•
Do not use chlorinated tap water in the
vehicles cooling system.