2010 VOLVO S40 engine

04 Interior
Interior lighting
04

109 Interior lighting
G020201
Front courtesy lights and reading lights
Front driver's side reading light, on/off
Courtesy lighting
Front passenger's side reading light, on/off
The front and rear reading lights can be acti-
vated when the ignition key is position I or II, or
when the engine is running. The front reading
lights are switched on and off by pressing but-
tons (1) or (3).
The courtesy lighting (2) can be set to three
positions:

Press the left side of the button: the interior
courtesy lighting turns on.
Neutral position: the interior courtesy light-
ing comes on when a door is opened, and
is switched off 10 seconds after the door is
closed.

Press the right side of the button: the inte-
rior courtesy lighting stays off.
Courtesy lighting – automatic function
The interior lighting has a built-in automatic
function that switches on the courtesy lighting
for 30 seconds when:
•the car is unlocked from the outside using
the key blade or remote key
•the engine is switched off and the ignition
key is turned to the 0 position.
The courtesy lighting lights up or remains on
for 5 minutes when:
•one of the doors is opened and left open.
•the courtesy lighting has not been
switched off (the right side of button 2
depressed).
The automatic lighting goes out when:
•the engine is started
•the car is locked from the outside using the
key blade or remote key.
If the courtesy lighting is not switched off man-
ually, it will be turned off automatically5 minutes after the engine has been switched
off.
Footwell lightingThe footwell (and courtesy lighting) comes on
or goes off when one of the side doors is
opened or closed.
Rear reading lights
G020763
Rear reading lights (in ceiling)
Rear driver's side reading light, on/off
Rear passenger's side reading light, on/off
The rear reading lights can be switched on or
off by pressing the respective buttons, and

04 Interior
Interior lighting
04
110
function if the ignition key is in positions I, II, or
if the engine is running.
The courtesy lighting can be switched on or off
within 30 minutes after the engine has been
switched off, or after a door has been opened
or closed.
These lights switch off automatically 5 minutes
after the engine has been switched off.
Vanity mirror
G020210
Raise the cover to switch on the light.

05 Locks and alarm
Keyless drive*
05

* Option/accessory, for more information, see Introduction.127
CAUTION
•Keyless drive remote keys should never
be left in the vehicle. In the event of a
break-in, a remote found in the vehicle
could make it possible to start the
engine.
•Electromagnetic fields or metal
obstructions can interfere with the key-
less drive system. Avoid placing the
remote key near cellular phones, metal-
lic objects or e.g., in a metal briefcase.
Canada – IC:267T- 5WK48952,
267T- 5WK48964, 267T-5WK48891
NOTE
This device complies with RSS -210 of Industry
Canada. Operation is subject to the following
two conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept interference received, including inter-
ference that may cause undesired operation.
CAUTION
Changes or modifications not expressly
approved by the manufacturer could void the
user's authority to operate the equipment.
USA – FCC ID:KR55WK48952,KR55WK48964
NOTE
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept interference received, including inter-
ference that may cause undesired operation.
CAUTION
Changes or modifications not expressly
approved by the manufacturer could void the
user's authority to operate the equipment.
Siemens VDO
5WK48891
Tested To Comply With FCC Standards
For Automobile UseLocation of the keyless drive antennas
G020076
The keyless drive system has a number of
antennas located at various points in the vehi-
cle.
On the inside center of the rear bumper
Left rear door handle
Under the floor of the trunk, near the rear
seat
Right rear door handle
Under the rear section of the center con-
sole
Under the front section of the center con-
sole

05 Locks and alarm
Alarm*
05

* Option/accessory, for more information, see Introduction.133 Turning off (stopping) the alarm
If the alarm is sounding, it can be stopped by
pressing the UNLOCK button on the remote
key or by inserting the key in the ignition switch.
The driver's door must first be unlocked with
the key blade.
NOTE
On vehicles equipped with the optional key-
less drive, the start control must be
removed from the ignition switch before the
key can be inserted, see page 148 for
instructions.
Audible/visual alarm signal
An audible alarm signal is given by a battery
powered siren. The alarm cycle lasts for
30 seconds.
NOTE
The visual alarm signal is given by flashing
all turn signals and turning on the interior
lighting for approximately 5 minutes.
Temporarily turning off the accessory
alarm sensor(s)
G026313
Display
MENU
EXIT
ENTER
Menu navigation controlsIn certain situations it may be desirable to turn
off the accessory inclination and movement
alarm sensors if, for example, you drive your
vehicle onto a ferry where the rocking of the
boat could trigger the alarm or if a pet is left in
the vehicle with the doors locked.
To do so:
1.
Press MENU to enter the menu system and
scroll to
Car settings (for a more detailed
description of the menus, see page 83.
2.
Select
Reduced guard.
3.
Select
Activate once and the messageReduced guard – See manual will
appear in the information display. The
alarm sensors will be turned off when the
vehicle is locked.
or
Select
Ask on exit. Each time the ignition
key is turned to position 0, the message
Press ENTER to reduce guard until
engine is started. Press EXIT to
cancel
will be displayed. Select one of the
alternatives:
•If the alarm sensors are to be deactivated,
press ENTER and then lock the vehicle.
The next time the ignition key is turned to posi-
tion II, the sensors will be reactivated and
Full
guard will displayed.

06 Starting and driving
General information
06
138
Economical driving conserves natural
resources
Better driving economy may be obtained by
thinking ahead, avoiding rapid starts and stops
and adjusting the speed of your vehicle to
immediate traffic conditions.
Observe the following rules:
•Bring the engine to normal operating tem-
perature as soon as possible by driving
with a light foot on the accelerator pedal for
the first few minutes of operation. A cold
engine uses more fuel and is subject to
increased wear.
•Whenever possible, avoid using the vehicle
for driving short distances. This does not
allow the engine to reach normal operating
temperature.
•Drive carefully and avoid rapid acceleration
and hard braking.
•Use the transmission's Drive (D) position
as often as possible and avoid using kick-
down.
•Do not exceed posted speed limits.
•Avoid carrying unnecessary items (extra
load) in the vehicle.
•Maintain correct tire pressure. Check tire
pressure regularly (when tires are cold).
•Remove snow tires when threat of snow or
ice has ended.
•Note that roof racks, ski racks, etc,
increase air resistance and also fuel con-
sumption.
•At highway driving speeds, fuel consump-
tion will be lower with the air conditioning
on and the windows closed than with the
air conditioning off and the windows open.
•Using the onboard trip computer's fuel
consumption modes can help you learn
how to drive more economically.
Other factors that decrease gas mileage
are:
•Dirty air cleaner
•Dirty engine oil and clogged oil filter
•Dragging brakes
•Incorrect front end alignment
Some of the above mentioned items and others
are checked at the standard maintenance
intervals.
WARNING
Driving with the trunk open: Driving with
the trunk open could lead to poisonous
exhaust gases entering the passenger com-
partment. If the trunk must be kept open for
any reason, proceed as follows:
1. Close the windows.
2. Set the ventilation system control to air
flow to floor, windshield and side win-
dows and the blower control to its high-
est setting.
Weight distribution affects handling
At the specified curb weight your vehicle has a
tendency to understeer, which means that the
steering wheel has to be turned more than
might seem appropriate for the curvature of a
bend. This ensures good stability and reduces
the risk of rear wheel skid. Remember that
these properties can alter with the vehicle load.
The heavier the load in the cargo area, the less
the tendency to understeer.

06 Starting and driving
General information
06

139 Handling, roadholding
Vehicle load, tire design and inflation pressure
all affect vehicle handling. Therefore, check
that the tires are inflated to the recommended
pressure according to the vehicle load. See the
"Tire pressure" section. Loads should be dis-
tributed so that capacity weight or maximum
permissible axle loads are not exceeded.
Driving through water
The vehicle can be driven through water up to
a depth of approximately 9 in. (25 cm), at a
maximum speed of 6 mph (10 km/h).
•Take particular care when driving through
flowing water.
•Clean the electrical connections for trailer
wiring after driving in mud or water
•When driving through water, maintain low
speed and do not stop in the water.
WARNING
After driving through water, press lightly on
the brake pedal to ensure that the brakes
are functioning normally. Water or mud can
make the brake linings slippery, resulting in
delayed braking effect.
CAUTION
•Engine damage will occur if water is
drawn into the air cleaner.
•If the vehicle is driven through water
deeper than 9 in. (25 cm), water may
enter the differential and the transmis-
sion. This reduces the oil's lubricating
capacity and may shorten the service
life of these components.
•Do not allow the vehicle to stand in
water up to the door sills longer than
absolutely necessary. This could result
in electrical malfunctions.
•If the engine has been stopped while the
car is in water, do not attempt to restart
the engine. Have the car towed out of
the water.
Cold weather precautions
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 byVolvo. 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 help protect your vehicle
during 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 driving
or in warm weather, see page 275 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
1Synthetic oil is not used when the oil is changed at the normal maintenance intervals except at owner request and at additional charge. Please consult your Volvo retailer.

06 Starting and driving
General information
06
140
more frequently and spray an anti-rust oil
on the battery posts.
•Volvo recommends the use of snow tires
on all four wheels for winter driving – see
the chapter "Wheels and tires."
•To prevent the washer fluid reservoir from
freezing, add washer solvents containing
antifreeze (see page 217 for the location of
the washer fluid reservoir). This is impor-
tant since dirt is often splashed on the
windshield during winter driving, requiring
the frequent use of the washers and wip-
ers. Volvo Washer Solvent should be dilu-
ted 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 solvent 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 using de-icing sprays as they can
cause damage to the locks.
Conserving electrical current
Keep the following in mind to help minimize
battery drain:
•When the engine is not running, avoid turn-
ing the ignition key to position II. Many
electrical systems (the audio system, the
optional navigation system, power win-
dows, etc) will function with the ignition key
in position I. This position reduces drain on
the battery.
•Please keep in mind that using systems,
accessories, etc that consume a great deal
of current when the engine is not running
could result in the battery being completely
drained.
•The optional 12 volt socket in the trunk
(certain models only) provides electrical
current even with the ignition switched off,
which drains the battery.
NOTE
•If the ignition is switched on, a warning
message will be displayed in the text
window in the instrument panel when
the battery charge is low.
•An energy conserving function
designed into the vehicle's electrical
system will switch off certain functions
or reduce the load on the battery by,
e.g., reducing the audio system's vol-
ume.
Before a long distance trip
It is always worthwhile to have your vehicle
checked at a trained and qualified Volvo serv-
ice technician before driving long distances.
Your trained and qualified Volvo service tech-
nician will also be able to supply you with
bulbs, fuses, spark plugs and wiper blades for
your use in the event that problems occur.
As a minimum, the following items should be
checked before any long trip:
•Check that engine runs smoothly and that
fuel consumption is normal.
•Check for fuel, oil, and fluid leakage
•Have the transmission oil level checked2.
•Check condition of drive belts.
2To prevent injury from contact with hot surfaces, do not inspect your vehicle's transmission fluid yourself. Have your vehicle's transmission fluid level inspected by a qualified Volvo service technician.

06 Starting and driving
Fuel requirements
06
142
Octane rating
Minimum octane
G028920
Typical pump octane label
Volvo recommends premium fuel for best per-
formance, but using 87 octane or above will not
affect engine reliability.
Volvo engines are designed to achieve rated
horsepower, torque, and fuel economy per-
formance using premium 91 octane fuel.
Demanding drivingIn demanding driving conditions, such as oper-
ating the vehicle in hot weather, towing a trailer,
or driving for extended periods at higher alti-
tudes than normal, it may be advisable to
switch to higher octane fuel (91 or higher) or to
change gasoline brands to fully utilize yourengine's capacity, and for the smoothest pos-
sible operation.
NOTE
When switching to higher octane fuel or
changing gasoline brands, it may be neces-
sary to fill the tank more than once before a
difference in engine operation is noticeable.
Fuel FormulationsDo not use gasoline that contains lead as a
knock inhibitor, and do not use lead additives.
Besides damaging the exhaust emission con-
trol systems on your vehicle, lead has been
strongly linked to certain forms of cancer.
Many fuels contain benzene as a solvent.
Unburned benzene has been strongly linked to
certain forms of cancer. If you live in an area
where you must fill your own gas tank, take
precautions. These may include:
•standing upwind away from the filler nozzle
while refueling
•refueling only at gas stations with vapor
recovery systems that fully seal the mouth
of the filler neck during refueling
•wearing neoprene gloves while handling a
fuel filler nozzle.
Use of AdditivesWith the exception of gas line antifreeze during
winter months, do not add solvents, thicken-
ers, or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse may damage your engine, and some
of these additives contain organically volatile
chemicals. Do not needlessly expose yourself
to these chemicals.
WARNING
Never carry a cell phone that is switched
on while refueling your vehicle. If the phone
rings, this may cause a spark that could
ignite gasoline fumes, resulting in fire and
injury.
WARNING
Carbon monoxide is a poisonous, colorless,
and odorless gas. It is present in all exhaust
gases. If you ever smell exhaust fumes
inside the vehicle, make sure the passenger
compartment is ventilated, and immediately
return the vehicle to a trained and qualified
Volvo service technician for correction.