2010 VOLVO S40 air filter

03 Climate
General information
03
92
Air conditioning – A/C
Your car is equipped with a climate control
system that includes either manually adjusta-
ble air conditioning or optional Electronic Cli-
mate Control (ECC).
The air conditioning system can be switched
off, but for optimal air quality in the passenger
compartment and to prevent the windows from
fogging, the air conditioning should be left on
– even in cool weather.
NOTE
In warm weather, a small amount of water
may accumulate under the car when it has
been parked. This water is condensation
from the A/C system and is normal.
Ice and snow
Always keep the air intake grille at the base of
the windshield free of snow.
Fog on the inside of the windows
The defroster function should be used to
remove fog or mist from the inside of the win-
dows. Keeping the windows clean with a com-
mercially available window washing spray will
also help prevent fogging or misting
Climate control maintenance
Special tools and equipment are required to
maintain and carry out repairs on the climate
system. Work of this type should only be done
by a trained and qualified Volvo service tech-
nician.
Refrigerant
Volvo cares about the environment. The air
conditioning system in your car contains a
CFC-free refrigerant – R134a. This substance
will not deplete the ozone layer. The system
contains 1.2 lbs (530 g) R134a (HFC 134a), and
uses PAG oil.
Passenger compartment filter
Replace the cabin air filter with a new one at
the recommended intervals. Please refer to
your Warranty and Service Records Informa-
tion booklet, or consult a trained and qualified
Volvo service technician for these intervals.
The filter should be replaced more often when
driving under dirty and dusty conditions. The
filter cannot be cleaned and therefore should
always be replaced with a new one.
NOTE
There are different types of cabin air filters.
Ensure that the correct type is installed.
Display
The display above the climate control panel
shows the climate settings that have been
made.
Personal settings
There are two functions in the climate system
that can be set to your preferences:
•Blower speed to Auto mode (models with
ECC only).
•Timer controlled recirculation of the air in
the passenger compartment.

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.

12 Index
12
283
fluid..................................................... 221
general information............................. 155
Bulbs
headlights........................................... 225
list of................................................... 278
Bulbs, replacing....................................... 225
C
Capacities, fluids..................................... 273
Capacity weight............................... 186, 271
Catalytic converter, three-way................. 280
CD changer.............................................. 255
CD player................................................. 255
Cell phone, hands-free connection......... 260
Central locking system - remote key....... 120
Chains...................................................... 189
Changing a wheel.................................... 192
Child restraints
recalls and registration......................... 47
Child restraint systems.............................. 37
booster cushions.................................. 43
convertible seats.................................. 41
infant seats........................................... 39ISOFIX/LATCH anchors........................ 44
top tether anchors................................ 46
Child safety................................................ 35
booster cushions.................................. 43
child restraint systems.......................... 37
convertible seats.................................. 41
infant seats........................................... 39
Child safety locks....................................131
Climate system
air distribution..................................... 101
air vents................................................ 94
Electronic Climate Control.................... 98
manual climate control......................... 95
passenger compartment filter.............. 92
refrigerant.....................................92, 273
Climate system, general information......... 92
Clock
setting................................................... 83
Coat hanger............................................. 112
Cold weather precautions........................ 139
Compact disc care..................................257
Compass in rearview mirror....................... 78
Conserving electrical current................... 140
Convertible seats....................................... 41Coolant.................................................... 273
changing............................................. 220
checking level of................................. 220
Courtesy lighting...................................... 109
Crash mode............................................... 34
Cruise control............................................ 70
Cup holders.....................................111, 113
Curb weight.....................................186, 271
D
Detachable key blade.............................. 122
Detachable trailer hitch............................ 164
Dimensions.............................................. 270
Disconnecting the front passenger’s air-
bag............................................................. 26
Display.......................................................60
Dolby Pro Logic II (DPL II)........................ 245
Door mirrors............................................... 79
Driving economically................................ 138
Driving through water..............................139
DSTC, stability system............................ 157