2011 VOLVO V50 engine

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 octane1 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 tochange gasoline brands to fully utilize your
engine'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.
1AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number (RON) and the Motor Octane Number (MON), MON+RON/2.

06 Starting and driving
Fuel requirements
06

143 Deposit control gasoline (detergent
additives)
Volvo recommends the use of detergent gas-
oline to control engine deposits. Detergent
gasoline is effective in keeping injectors and
intake valves clean. Consistent use of deposit
control gasolines will help ensure good driva-
bility and fuel economy. If you are not sure
whether the gasoline contains deposit control
additives, check with the service station oper-
ator.
NOTE
Volvo does not recommend the use of
store-bought fuel injector cleaning addi-
tives.
Unleaded fuel
Each Volvo has a three-way catalytic converter
and must use only unleaded gasoline. U.S. and
Canadian regulations require that pumps deliv-
ering unleaded gasoline be labelled "UNLEA-
DED". Only these pumps have nozzles which
fit your vehicle's filler inlet. It is unlawful to dis-
pense leaded fuel into a vehicle labelled
"unleaded gasoline only". Leaded gasoline
damages the three-way catalytic converter and
the heated oxygen sensor system. Repeated
use of leaded gasoline will lessen the effective-ness of the emission control system and could
result in loss of emission warranty coverage.
State and local vehicle inspection programs
will make detection of misfueling easier, pos-
sibly resulting in emission test failure for mis-
fueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain
an octane enhancing additive called methyl-
cyclopentadienyl manganese tricarbonyl
(MMT). If such fuels are used, your Emission
Control System performance may be affec-
ted, and the Check Engine Light (malfunc-
tion indicator lamp) located on your instru-
ment panel may light. If this occurs, please
return your vehicle to a trained and qualified
Volvo service technician for maintenance.
Gasoline containing alcohol and ethers
Some fuel suppliers sell gasoline containing
"oxygenates" which are usually alcohols or
ethers. In some areas, state or local laws
require that the service pump be marked indi-
cating use of alcohols or ethers. However,
there are areas in which the pumps are
unmarked. If you are not sure whether there is
alcohol or ethers in the gasoline you buy, check
with the service station operator. To meet sea-
sonal air quality standards, some areas require
the use of "oxygenated" fuel. Volvo allows theuse of the following "oxygenated" fuels; how-
ever, the octane ratings listed on this page
must still be met.
Alcohol – Ethanol: Fuels containing up to 10%
ethanol by volume may be used. Ethanol may
also be referred to as Ethyl alcohol, or "Gaso-
hol".
Ethers – MTBE: Fuels containing up to 15%
MTBE may be used.
MethanolDo not use gasolines containing methanol
(methyl alcohol, wood alcohol). This practice
can result in vehicle performance deterioration
and can damage critical parts in the fuel sys-
tem. Such damage may not be covered under
the New Vehicle Limited Warranty.
Fuel filler door
Press the button on the light switch panel (see
the illustration on page 64) with the ignition
switched off to unlock the fuel filler door.
Please note that the fuel filler door will remain
unlocked until the vehicle begins to move for-
ward. An audible click will be heard when the
fuel filler door relocks.
If you intend to leave your vehicle while it is
being refueled, this feature enables you to lock
the doors/tailgate while leaving the fuel filler
door unlocked.

06 Starting and driving
Fuel requirements
06
144
You can also keep the vehicle locked if you
remain inside it during refueling. The central
locking button does not lock the fuel filler door.
Be sure the fuel filler door is not obstructed and
is completely closed after refueling. Open the
fuel filler cap slowly during hot weather.
Refueling
The fuel tank is designed to accommodate
possible expansion of the fuel in hot weather,
see page 271 for fuel tank volume. Be aware
that the "usable" tank capacity will be some-
what less than the specified maximum. When
the fuel level is low, such factors as ambient
temperature, the fuel's "Reid vapor pressure"
characteristics, and terrain can affect the fuel
pump's ability to supply the engine with an
adequate supply of fuel. Therefore, it is advis-
able to refuel as soon as possible when the
needle nears the red zone, or when the fuel
warning light comes on.
CAUTION
•Do not refuel with the engine running2.
Turn the ignition off or to position I. If the
ignition is on, an incorrect reading could
occur in the fuel gauge
•After refueling, close the fuel filler cap
by turning it clockwise until it clicks into
place.
•Avoid overfilling the fuel tank. Do not
press the handle on the filler nozzle
more than one extra time. Too much fuel
in the tank in hot weather conditions can
cause the fuel to overflow. Overfilling
could also cause damage to the emis-
sion control systems.
•Avoid spilling gasoline during refueling.
In addition to causing damage to the
environment, gasolines containing
alcohol can cause damage to painted
surfaces, which may not be covered
under the New Vehicle Limited War-
ranty.
•Do not use gasolines containing meth-
anol (methyl alcohol, wood alcohol).
This practice can result in vehicle per-
formance deterioration and can dam-
age critical parts in the fuel system.
Such damage may not be covered
under the New Vehicle Limited War-
ranty.
2If the fuel filler cap is not closed tightly or if the engine is running when the vehicle is refueled, the Check Engine Light (malfunction indicator lamp) may indicate a fault. However, your vehicle’s
performance will not be affected. Use only Volvo original or approved fuel filler caps.

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
151.
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. 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: The automatic transmission
has a keylock system. 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, an auto-
matic transmission may shift up at
slightly higher engine speeds than nor-
mal until the automatic transmission
fluid reaches normal operating tem-
perature.
•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 manu-
factured for your car. They must be
firmly secured in the clips on the floor so
that they cannot slide and become trap-
ped under the pedals on the driver's
side.
•Always place the gear selector in Park
(P) and apply the parking brake before
leaving the vehicle. Never leave the
vehicle unattended with the engine run-
ning.
•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.

06 Starting and driving
Starting the vehicle with keyless drive*
06
148* Option/accessory, for more information, see Introduction.
Starting a vehicle with keyless drive
G019410
Keyless drive makes it possible to unlock, start
and lock the vehicle without using a remote
key.
A start control is fitted in the ignition switch on
vehicles equipped with the optional keyless
drive. This control is used in the same way as
the ignition key to start the engine. See also
page 146 for general information on starting
the engine.
NOTE
A keyless drive remote key must be inside
the vehicle in order to start the engine.
1. Press the brake pedal.
2. Press in the keyless drive start control and
turn it to position III.
NOTE
The vehicle is equipped with an autostart
function that makes it possible to start the
engine without holding the start control in
position III. Turn the start control to posi-
tion III and release it. The starter motor will
then operate automatically (for up to ten
seconds) until the engine starts.
Starting the vehicle with the ignition key
(remote key)
A vehicle with keyless drive can also be started
with the ignition key (if, for example, the battery
in the keyless drive remote key is weak). To do
so:
G019420
Removing the keyless drive start control
Press the catch on the side of the start con-
trol (see the illustration).
Pull the keyless drive start control out of the
ignition switch.
Insert the remote key into the ignition switch
and turn it to position III to start the engine,
page 146 for complete starting information.

06 Starting and driving
Automatic transmission
06

149 Shiftgate positions
G020237
Depress the button on the front of the gear
selector knob to move the selector between
the R, N, D, and P positions.
The gear selector can be moved freely between
the Geartronic (manual shifting) and Drive (D)
positions while driving.
Gear selector positions
P – ParkSelect the P position when starting or parking.
In P, the transmission is mechanically blocked
(Shiftlock). Always apply the parking brake
when parking.
G018264
D - left position: automatic shifting, M - right posi-
tion: manual shifting
CAUTION
The car must be stationary when selecting
position P.
R – ReverseThe car must be stationary when shifting to
position R.
N – NeutralN is the neutral position. The engine can be
started, but no gear is selected. Apply the park-
ing brake when the car is stationary with the
gear selector in N.
NOTE
If the gear selector is in the Neutral position
and the vehicle has been at a standstill for
at least 3 seconds, the brake pedal must be
pressed before the gear selector can be
moved to another position.
In order to move the gear selector to another
position:
1.
Turn the ignition key to position II (if the
engine is not already running).
2. Depress the brake pedal.
3. Move the gear selector to the desired posi-
tion.
D – DriveD is the normal driving position. The Drive posi-
tion offers 5 forward gears1. The car automat-
ically shifts between the various forward gears,
1T5 models have 6 forward gears.

06 Starting and driving
Automatic transmission
06
150
based on the level of acceleration and speed.
The car must be at a standstill when shifting to
position D from position R.
Manual shifting – Geartronic
The manual shifting mode (Geartronic) can be
selected at any time to manually select forward
gears, including while the car is moving.
NOTE
Reverse, Neutral, and Park cannot be
selected in Geartronic mode.
•To access the Manual (M) shifting position
from Drive (D), move the gear selector to
the right to M.
•To return to the Drive (D) position from M,
move the gear selector to the left.
While driving
•If you select the M position while driving,
the gear that was being used in the Drive
position will also initially be selected in the
M position.
•Move the gear selector forward
(toward "+") to shift to a higher gear or
rearward (toward "–") to shift to a lower
gear.
•If you hold the gear selector toward "–", the
transmission will downshift one gear at atime and will utilize the braking power of
the engine. If the current speed is too high
for using a lower gear, the downshift will
not occur until the speed has decreased
enough to allow the lower gear to be used.
•If you slow to a very low speed, the trans-
mission will automatically shift down.
Cold starts (turbo engines)
When driving before the engine has reached its
normal operating temperature, the transmis-
sion will shift up at slightly higher engine
speeds to heat the three-way catalytic con-
verter as quickly as possible.
Kickdown
Automatic shift to a lower gear (kickdown) is
achieved by depressing the accelerator pedal
fully and briskly. An upshift will occur when
approaching the top speed for a particular gear
or by releasing the accelerator pedal slightly.
Kickdown can be used for maximum acceler-
ation or when passing at highway speeds.
Safety functionTo help prevent excessive engine speeds (rpm)
that could lead to engine damage, the engine
management system includes a function that
prevents kickdown from taking place if the
engine speed is too high.Kickdown will not occur if the driver attempts
to use this function when engine speeds are
too high. The transmission will remain in the
currently selected gear.