2010 VOLVO S40 brake

04 Interior
Front seats
04
104
Manual seat adjustment
The driver's and passenger's seats can be
adjusted in a number of ways to provide a
comfortable driving and sitting position.
Forward-rearward: Pull the lever up and
slide the seat to the position of your choice.
Use this control to raise or lower the front
edge of the seat cushion.
Use this control to raise or lower the rear
edge of the seat cushion.
Turn this knob (optional on some passeng-
er's seats) to adjust the firmness of the
lumbar support
1.
Turn this knob to adjust the backrest tilt.
Control panel for the optional power seats.
NOTE
Both front seats are equipped with head
restraints that can be adjusted vertically to
suit the height of the passenger. The upper
edge of the head restraint should be at least
on a level with the upper-most point of the
seat occupant's ear (see the section
"Adjusting the front seat head restraints" on
page 107).
WARNING
•Do not adjust the seat while driving.
•Adjust the driver’s seat and seat belt
(see page 18) before driving. The seat
should be adjusted so that the brake
pedal can be depressed fully.
•Position the seat as far rearward as
comfort and control allow.
Folding down the front seat backrests
G014805
The front passenger's seat backrest can be
folded down to provide room for long loads.
1. Move the seat as far back as possible.
2. Adjust the backrest to the upright position.
3. Lift the catches on the rear of the backrest
as shown in the illustration.
4. Without releasing the catches, push the
backrest forward.
5. Move the seat as far forward as possible
so that the head restraint slides under the
glove compartment.
1Also applies to the optional power seat.

04 Interior
Front seats
04
106* Option/accessory, for more information, see Introduction.
Programming the seat memory, driver's
seat only*
G020200
Power seat memory buttons
Three different seating positions can be stored
in the seat's memory. The memory buttons are
located on the outboard side of the driver's
seat (see the illustration above). The following
example explains how memory button 1 can be
programmed. Buttons 2 and 3 can be pro-
grammed in the same way.
To program (store) a seat position in memory
button 1:
1. Adjust the seat to the desired position.
2.
Press and hold down the "M" (Memory)
button.3.
With the "M" button depressed, press
memory button 1 to store the seat's current
position.
To move the seat to the position that it was in
when memory button 1 was programmed,
press and hold down button 1 until the seat
stops moving.
As a safety precaution, the seat will stop auto-
matically if the button is released before the
seat has reached the preset position.
Central locking system remote key and
driver's seat memory
The remote key transmitter can also be equip-
ped with an optional function that controls the
electrically operated driver's seat in the follow-
ing way:
1. Adjust the seat to the desired position.
2. When you leave the car, lock it using the
remote key.
3. The next time the driver's door is unlocked
with the same remote key and that door is
opened within 2 minutes, the driver's seat
and side door mirrors will automatically
move to the position that they were in when
the doors were most recently locked with
the same remote key.
NOTE
The memory function in the remote key
operates independently the memory func-
tion in the seat.
WARNING
•Because the driver's seat can be
adjusted with the ignition off, children
should never be left unattended in the
car.
•Movement of the seat can be STOPPED
at any time by pressing any button on
the power seat control panel.
•Do not adjust the seat while driving. The
seat should be adjusted so that the
brake pedal can be depressed fully. In
addition, position the seat as far rear-
ward as comfort and control allow.
•The seat rails on the floor must not be
obstructed in any way when the seat is
in motion.

G020912
136* Option/accessory, for more information, see Introduction.
General information............................................................................... 138
Fuel requirements................................................................................. 142
Ignition switch....................................................................................... 145
Starting the vehicle............................................................................... 146
Starting the vehicle with keyless drive*................................................. 148
Manual transmission, 5-speed*............................................................ 149
Manual transmission, 6-speed*............................................................ 150
Automatic transmission*....................................................................... 151
Shiftlock override.................................................................................. 153
All Wheel Drive*..................................................................................... 154
Brake system........................................................................................ 155
Stability system..................................................................................... 157
Towing.................................................................................................. 159
Jump starting........................................................................................ 161
Towing a trailer...................................................................................... 162
Detachable trailer hitch......................................................................... 164
Transporting loads................................................................................ 165
Blind Spot Information System (BLIS)*................................................. 166
Park assist*........................................................................................... 170

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
141
•Check state of the battery's charge.
•Examine tires carefully (the spare tire as
well), and replace those that are worn.
Check tire pressures.
•The brakes, front wheel alignment, and
steering gear should be checked by your
Volvo retailer only.
•Check all lights, including high beams.
•Reflective warning triangles are legally
required in some states/provinces.
•Have a word with your Volvo retailer if you
intend to drive in countries where it may be
difficult to obtain the correct fuel.
•Consider your destination. If you will be
driving through an area where snow or ice
are likely to occur, consider snow tires.

06 Starting and driving
Starting the vehicle
06
146
To start the engine
WARNING
Before starting, check that the seat, steering
wheel and mirrors are adjusted properly.
Make sure the brake pedal can be
depressed completely. Adjust the seat if
necessary.
1. Fasten the seat belt.
2. Apply the parking brake if not already set.
The gear selector should be locked in the
Park (P) position (Shiftlock). See also page
153.
Manual transmission: The clutch must be
fully depressed.
NOTE
After a cold start, idle speed may be notice-
ably higher than normal for a short period.
This is done to help bring components in the
emission control system to their normal
operating temperature as quickly as possi-
ble, which enables them to control emis-
sions and help reduce the vehicle's impact
on the environment.
3. The vehicle is equipped with an autostart
feature. Without touching the throttle
pedal, turn the key to position III and
release it. The starter motor will then oper-
ate automatically (for up to ten seconds)
until the engine starts. If the engine fails to
start, repeat this step.
4. To release the gear selector from the Park
(P) position, the engine must be running (or
the ignition key must be in position II) and
the brake pedal must be depressed.
5. Select the desired gear. On models with an
automatic transmission, the gear engages
after a very slight delay which is especially
noticeable when selecting R.NOTE
•Immobilizer: If two of the keys to your
vehicle are close together, e.g., on the
same key ring when you try to start the
vehicle, this could cause interference in
the immobilizer system and result in the
vehicle not starting. If this should occur,
remove one of the keys from the key
ring before trying to start the vehicle
again.
•Keylock: Models equipped an auto-
matic transmission have a keylock sys-
tem. When the engine is switched off,
the gear selector must be in the Park
(P) position before the key can be
removed from the ignition switch
1.
•When starting in cold weather, the
transmission may shift up at slightly
higher engine speeds than normal until
the automatic transmission fluid rea-
ches normal operating temperature.
•Do not race a cold engine immediately
after starting. Oil flow may not reach
some lubrication points fast enough to
prevent engine damage.
1The optional keyless drive start control does not need to be removed from the ignition switch.

06 Starting and driving
Starting the vehicle
06
147
WARNING
Volvo's floor mats are specially manufac-
tured for your car. They must be firmly
secured in the clips on the floor so that they
cannot slide and become trapped under the
pedals on the driver's side.
•Always place the gear selector in Park
(P) (manual transmission: first or reverse
gear) and apply the parking brake
before leaving the vehicle.and apply the
parking brake before leaving the vehi-
cle. Never leave the vehicle unattended
with the engine running.
•Always open garage doors fully before
starting the engine inside a garage to
ensure adequate ventilation. The
exhaust gases contain carbon monox-
ide, which is invisible and odorless but
very poisonous.
CAUTION
Automatic transmission: The engine
should be idling when you move the gear
selector. Never accelerate until after you
feel the transmission engage! Accelerating
immediately after selecting a gear will cause
harsh engagement and premature trans-
mission wear. Selecting P or N when idling
at a standstill for prolonged periods of time
will help prevent overheating of the auto-
matic transmission fluid.