2011 VOLVO S40 engine

02 Instruments and controls
Symbols – instrument panel
02
60
Symbols – left side
G026439
1. Malfunction indicator light
As you drive, a computer called
On-Board Diagnostics II (OBDII)
monitors your car's engine, trans-
mission, electrical and emission
systems.
The CHECK ENGINE light will light up if the
computer senses a condition that potentially
may need correcting. When this happens,
please have your car checked by a trained and
qualified Volvo service technician as soon as
possible.
A CHECK ENGINE light may have many cau-
ses. Sometimes, you may not notice a change
in your car's behavior. Even so, an uncorrected
condition could hurt fuel economy, emission
controls, and drivability. Extended driving with-
out correcting the cause could even damage
other components in your car.
NOTE
Canadian models are equipped with the
second symbol.
2. Anti-lock Brake system (ABS)If the warning light comes on, there
is a malfunction of the ABS system
(the standard braking system will
still function).
The vehicle should be driven to a
trained and qualified Volvo service
technician for inspection, see
page 154 for additional informa-
tion.
NOTE
Canadian models are equipped with the
second symbol.
3. Rear fog lightThis symbol indicates that the rear
fog light (located in the driver's
side taillight cluster) is on.
4. Stability system STC or DSTCThis indicator symbol flashes when
the STC (Stability and Traction
control system) or the DSTC
(Dynamic Stability and Traction
control system) is actively working
to stabilize the car, see page 158 for more
detailed information.
5. Tire Pressure Monitoring SystemThis system monitors inflation
pressure in the tires. See page
200 for more information.
6. Fuel level warning lightWhen this light comes on, the vehi-
cle should be refueled as soon as
possible.

02 Instruments and controls
Symbols – instrument panel
02

61 Symbols – right side
G026438
1. Turn signal indicator for trailer (certain
markets only)
If you are towing a trailer, this light
will flash simultaneously with the
turn signals on the trailer. If the
light does not flash when signaling,
one of the turn signals on the trailer
or on the car are not functioning properly.
2. Parking brake appliedThis light is on when the parking
brake (hand brake) is applied. The
parking brake lever is situated
between the front seats, see
page 157 for more information.
NOTE
Canadian models are equipped with the
second symbol.
3. SRS system warning lightIf this light comes on while the car
is being driven, or remains on for
longer than approximately 10 sec-
onds after the car has been
started, the SRS system's diag-
nostic functions have detected a fault in a seat
belt lock or pretensioner, a front airbag, side
impact airbag, and/or an inflatable curtain.
Have the system(s) inspected by a trained and
qualified Volvo service technician as soon as
possible.
4. Oil pressure warning light1
If the light comes on while driving,
the car, stop the engine immedi-
ately, and check the engine oil
level. If the oil level is normal and
the light stays on after restart, have
the car towed to the nearest trained and quali-
fied Volvo service technician. After hard driv-
ing, the light may come on occasionally when
the engine is idling. This is normal, provided it
goes off when the engine speed is increased.
5. Seat belt reminderThis symbol (and the seat belt
reminder light above the rear view
mirror) will light up if either front
seat occupant has not buckled his/
her seat belt. If the car is not mov-
ing, the symbols will go out after approximately
6 seconds.
6. Generator warning lightIf the light comes on while the
engine is running, have the charg-
ing system checked by an author-
ized Volvo workshop.
1On certain engines, this symbol is not used to indicate low oil pressure. Instead, a text warning is provided in the information display, see also page 219.

02 Instruments and controls
Symbols – instrument panel
02
62
7. Brake failure warning lightIf this light comes on while driving
or braking, stop the car as quickly
as possible in a safe place, open
the hood, and check the brake fluid
level in the reservoir, see
page 218 for the location of the
reservoir.
NOTE
Canadian models are equipped with the
second symbol.
WARNING
If the fluid level is below the MIN mark in the
reservoir or if a BRAKE FAILURE STOP
SAFELY message is displayed in the infor-
mation display: DO NOT DRIVE. Have the
car towed to a trained and qualified Volvo
service technician and have the brake sys-
tem inspected.
If the BRAKES and ABS warning lights come
on at the same time, this could indicate a fault
in the brake system.
In this case:
1. Stop the car in a suitable place and switch
off the engine.2. Restart the engine.
3. If both warning lights go off, no further
action is required and the car can be
driven.
4. If both lights remain on after the engine has
been restarted, switch off the engine again
and check the brake fluid level, see
page 218 for the location of the reservoir.
Door open warning
The driver will be alerted if one of the doors, the
hood or the trunk are open or ajar.
At low speedsIf the car is moving at a speed of
less than approximately 3 mph
(5 km/h), the Information symbol in
the instrument panel will light up
and a message will be shown in the
information display indicating which door(s),
etc is not completely closed.
At higher speedsIf the car is moving at a speed
above approximately 6 mph
(10 km/h), the Warning symbol in
the instrument panel will light up
and a message will be shown in the
information display indicating which door(s),
etc is not completely closed.
Hood and trunkIf the hood and/or trunk is not com-
pletely closed, the Information
symbol in the instrument panel will
light up and a message will be dis-
played, regardless of the vehicle's
speed.

02 Instruments and controls
Information display
02

63 Messages
G019617
When an indicator or warning light in the instru-
ment panel comes on, a message is also
shown in the information display. To read a
message:
1.
Press the READ button (1).
2.
Pressing READ repeatedly enables you to
scroll to any other messages that may be
stored.
NOTE
If a message is displayed when e.g. you are
using the trip computer, this message must
be read before you can access the trip com-
puter.
MessageMeaning
.....STOP
SAFELYAStop the vehicle in a
safe place and switch
off the engine to help
prevent the risk of seri-
ous damage.
HIGH ENGINE
TEMP STOP
SAFELYStop the vehicle in a
safe place and switch
off the engine to help
prevent the risk of seri-
ous damage.
......SERVICE
URGENTATake your car to a
trained and qualified
Volvo service techni-
cian for inspection
immediately.
......SEE MAN-
UALARefer to your owner's
manual. For additional
information, please
contact your Volvo
retailer.
MessageMeaning
.....SERVICE
REQUIREDATake your car to a
trained and qualified
Volvo service techni-
cian for inspection as
soon as possible (but
preferably before the
next scheduled mainte-
nance service).
BOOK TIME
FOR MAINTE-
NANCEBook time for service at
an authorized Volvo
workshop.
TIME FOR
REGULAR
MAINTE-
NANCEThis message is affec-
ted by the number of
miles/km driven, by the
number of months, or
by the number of engine
hours since the service
reminder was reset at
the most recent regu-
larly scheduled service.
MAINTE-
NANCE OVER-
DUEIf the vehicle is not serv-
iced according to
schedule, the warranty
may not apply to dam-
aged parts, etc.

02 Instruments and controls
Information display
02
64
MessageMeaning
TIME FOR
REGULAR
MAINTE-
NANCEThis message is affec-
ted by the number of
miles/km driven, by the
number of months, or
by the number of engine
hours since the service
reminder was reset at
the most recent regu-
larly scheduled service.
REMINDER
CHECK OIL
LEVELStop as soon as possi-
ble and switch off the
engine, check the oil
level and top up if nec-
essary, see page 219.
AThis is part of the message. Additional information will also
be displayed.

02 Instruments and controls
Trip computer
02

71
G029052
READ (press to acknowledge/confirm/
erase a message)
Thumb wheel (used to scroll among the trip
computer menus)
RESET
The trip computer stores information gathered
from several systems in your car and has four
menus (five on Canadian models) that can be
shown in the information display.
•--- MILES TO EMPTY TANK
•--.- MPG AVERAGE (average fuel con-
sumption)
•--.- MPG INSTANTANEOUS (current fuel
consumption)
•--- MPH AVERAGE SPEED
•--- MPH ACTUAL SPEED (current speed
in mph, Canadian models only)
•STC/DSTC-related information, see
page 158
NOTE
Warning messages from the car's monitor-
ing systems will override the trip computer
function.
If a warning message is shown in the informa-
tion display while you are using the trip com-
puter:
1. Acknowledge the message by pressing the
READ (button 1).
2.
Press READ again to return to the trip
computer function.
Controls
The trip computer functions can be accessed
by twisting the thumb wheel (2) one step at a
time in either direction. Twisting a final time
returns you to the original function.
Resetting
--.- MPG AVERAGE (average fuel consump-
tion) and --- MPH AVERAGE SPEED can be
reset.1. Select one of these functions.
2.
Press RESET (3).
--- MILES TO EMPTY TANKThis function shows the approximate distance
that can be driven on the fuel remaining in the
tank. The calculation is based on average fuel
consumption during the last 20 miles (30 km)
of driving and the amount of fuel remaining in
the tank when the reading was taken.
When the message
--- MILES TO EMPTY
TANK appears in the display, refuel as soon
as possible.
MPG AVERAGEThis value indicates fuel consumption since the
last time the trip computer was reset, by press-
ing RESET (button 3). When the engine is
switched off, information on fuel consumption
is stored and remains in system memory until
RESET (button 3) is pressed again.
MPG INSTANTANEOUSThis value indicates the current fuel consump-
tion, based on readings taken once per sec-
ond. When the car is not moving, "
----" will be
displayed.
MPH AVERAGE SPEEDThis value indicates average speed since the
last time the trip computer was reset, by press-
ing RESET (button 3). When the engine is
switched off, information on average speed is

02 Instruments and controls
Power windows
02
78
Operation
Control panel in driver's door
Open/close front windows
Open/close rear windows
The power windows are controlled by buttons
in the arm rests.
•The ignition must be ON (ignition key in
position I, II or the engine running) for the
power windows to function.
•The power windows will also function after
the ignition has been switched off as long
as neither of the front doors has been
opened.
Opening a windowLightly press down the front edge of any of the
buttons (A or B) to the first detent ("stop") to
open a window to the position of your choice.
WARNING
•Always remove the ignition key when
the vehicle is unattended.
•Never leave children unattended in the
vehicle.
•Make sure that the windows are com-
pletely unobstructed before they are
operated.
1. Press the front part of any of the buttons (A
or B) as far down as possible and release
to automatically open the window com-
pletely.
2. To stop the window at any time, pull the
button up.
NOTE
To reduce buffeting wind noise if the rear
windows are opened, also open the front
windows slightly.
Closing a window1. Lightly pull up the front edge of any of the
buttons (A or B) to the first detent ("stop")to close a window to the position of your
choice.
2. Pull the front part of any of the buttons (A
or B) up as far as possible and release to
automatically close the window com-
pletely. To stop the window at any time,
press the button down.
Lockout switch for rear windows
Lockout switch
The electrically operated rear door windows
can be disabled by a switch located on the
driver's door (see illustration).
If the light in the switch is OFF: The rear door
windows can be raised or lowered with the

02 Instruments and controls
Power moonroof*
02

* Option/accessory, for more information, see Introduction.83 Operating the moonroof
G007503
To operate the moonroof, the ignition key must
first be turned to the intermediate or drive posi-
tion (position I, II or the engine running). The
moonroof can be opened in two ways:
Tilt position
Sliding moonroof
G029222
Moonroof control in the ceiling console
Auto open
Manual open
Manual close
Auto close
Tilt open
Tilt close
Tilt position
Open: Press the rear edge of the control
upward to position 5.

Close: Pull the rear edge of the control
down to position 6.
Sliding moonroof
Auto open/close
Open: Pull the switch as far back as possible
(to position 1) and release it to automatically
slide open the moonroof.
Close: Push the switch as far forward as pos-
sible (to position 4) and release it to automati-
cally close the moonroof.
Manual open/closeOpen: Pull the switch back to the first stop
(position 2) and hold it until the moonroof has
opened to the position of your choice.
Close: Push the switch forward to the first stop
(position 3) and hold it until the moonroof has
closed to the position of your choice, or has
closed completely.
NOTE
If the moonroof is repeatedly obstructed
during auto-close operation, an overload
circuit breaker will temporarily halt moon-
roof function. The moonroof will return to
normal function after a brief cool-down
period.