2009 VOLVO XC90 check engine

09 Maintenance and servicing
Maintaining your vehicle
09``203 Owner maintenance
Periodic maintenance requirements and inter-
vals are described in your vehicle's Warranty
and Service Records Information booklet.
The following points can be carried out
between the normally scheduled maintenance
services.Each time the vehicle is refueled•
Check the engine oil level
•
Clean the windshield, windshield wipers,
headlights, and tail lights
Monthly•
Check cold tire pressure in all tires. Inspect
the tires for wear.
•
Check that engine coolant and other fluid
levels are between the indicated "min" and
"max" markings.
•
Clean interior glass surfaces with a glass
cleaner and soft paper towels.
•
Wipe driver information displays with a soft
cloth.
•
Visually inspect battery terminals for cor-
rosion. Corrosion may indicate a loose ter-
minal connector, or a battery near the end
of its useful service life. Consult a trained
and qualified Volvo service technician for
additional information.
As needed•
Wash the vehicle, including the undercar-
riage, to reduce wear that can be caused
by a buildup of dirt, and corrosion that can
be caused by salt residues.
•
Clean leaves and twigs from air intake
vents at the base of the windshield, and
from other places where they may collect.
•
Complete service information for qualified
technicians is available online for purchase
or subscription at www.volvote-
chinfo.com.
Emission inspection readinessWhat is an Onboard Diagnostic System
(OBD II)?OBD II is part of your vehicle's computerized
engine management system. It stores diagnos-
tic information about your vehicle's emission
controls. It can light the Check Engine light
(MIL) if it detects an emission control "fault." A
"fault" is a component or system that is not
performing within an expected range. A fault
may be permanent or temporary. OBD II will
store a message about any fault.How do states use OBD II for emission
inspections?Many states connect a computer directly to a
vehicle's OBD II system. The inspector can
then read "faults." In some states, this type ofinspection has replaced the tailpipe emission
test.
How can my vehicle fail OBD II emission
inspection?Your vehicle can fail OBD II emission inspec-
tion for any of the following reasons.•
If your Check Engine (MIL) light is lit, your
vehicle may fail inspection.
•
If your vehicle's Check Engine light was lit,
but went out without any action on your
part, OBD II will still have a recorded fault.
Your vehicle may pass or fail, depending
on the inspection practices in your area.
•
If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
How can I prepare for my next OBD II
emission inspection?•
If your Check Engine (MIL) light is lit – or
was lit but went out without service, have
your vehicle diagnosed and, if necessary,
serviced by a qualified Volvo technician.
•
If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a
period of driving is necessary to bring the
OBD II system to "ready" for inspection. A
half-hour trip of mixed stop-and-go/high-

09 Maintenance and servicingWorking on your vehicle
09206
Belt checkCheck the belt regularly to make sure it is in
good condition and is clean. A worn or dirty belt
can cause poor cooling and low alternator out-
put as well as impair the operation of the power
steering and the air conditioning unit.
NOTE
The drive belt is equipped with a self-ten-
sioning mechanism and requires no adjust-
ment between changes.
WARNING
The engine must not be running when this
check is performed.Check coolant levelThe cooling system must be filled with coolant
and not leak to operate at maximum efficiency.
Check the coolant level regularly. The level
should be between the MAX and MIN marks
on the expansion tank. The check should be
made with particular thoroughness when the
engine is new or when the cooling system has
been drained.
Do not remove the filler cap other than for top-
ping up with coolant. Frequent removal may
prevent coolant circulation between the engineand the expansion tank during engine warm up
and cooling.
Changing coolantNormally, the coolant does not need to be
changed. If the system must be drained, con-
sult a trained and qualified Volvo service tech-
nician.
Do not top off with water only. This reduces the
rust-protective and antifreeze qualities of the
coolant and has a lower boiling point. It can
also cause damage to the cooling system if it
should freeze. Top off with Volvo Genuine
Coolant/Antifreeze only (a 50/50 mix of water
and antifreeze.
CAUTION
The cooling system must always be kept
filled to the correct level. If it is not kept filled,
there can be high local temperatures in the
engine which could result in damage. Dif-
ferent types of antifreeze/coolant may not
be mixed.
WARNING
Never remove the radiator cap while the
engine is warm. Wait until the vehicle cools.

09 Maintenance and servicing
Engine oil
09``209
NOTE
Volvo uses different systems to indicate a
low oil level or pressure. Some models have
an oil pressure sensor, in which case a
warning symbol (see page 56) is used to
indicate low oil pressure. Other models have
an oil level sensor, in which case the driver
is alerted by the warning symbol in the cen-
ter of the instrument panel and a text in the
information display. Some models use both
systems. Contact a trained and qualified
Volvo service technician for more informa-
tion.Changing engine oil and oil filterSee page 208 for oil specifications and page
268 for oil volumes. Refer to the Warranty and
Service Records Information booklet for infor-
mation on the oil change intervals.
NOTE
Volvo does not recommend the use of oil
additives.
Synthetic oil is not used when the oil is
changed at the normal maintenance inter-
vals except at owner request and at addi-
tional charge. Please consult a trained and
qualified Volvo service technician.
Checking and adding oil
G030880
Location of dipstick (1) and oil filler cap (2)The oil level should be checked every time the
vehicle is refueled. This is especially important
during the period up to the first scheduled
maintenance service.•
The vehicle should be parked on a level
surface when the oil is checked.
•
If the engine is warm, wait for at least
10-15 minutes after the engine has been
switched off before checking the oil.
Checking the oil•
Pull out the dipstick and wipe it with a lint-
free rag.
•
Reinsert the dipstick, pull it out, and check
the oil level.
•
Add oil if necessary. If the level is close to
theMIN mark, add approximately
1 US quart (1 liter) of oil.
•
Run the engine until it reaches normal
operating temperature.
•
Switch off the engine and wait for at least
10-15 minutes and recheck the oil level. If
necessary, add oil until the level is near the
mark.
•
Oil level should be between the MIN and
MAX marks on the dipstick.

09 Maintenance and servicingEngine oil
09210
G030881
CAUTION
Not checking the oil level regularly can result
in serious engine damage if the oil level
becomes too low.•
Never fill oil above the MAXmark. This
could cause an increase in oil consump-
tion.
•
Not checking the oil level regularly can
result in serious engine damage if the oil
level becomes too low.
•
Always add oil of the same type and
viscosity as already used.
WARNING
Do not allow oil to spill onto or come into
contact with hot exhaust pipe surfaces.

09 Maintenance and servicing
Fluids
09``211 Washer fluid reservoir
G027097
Washer fluid reservoirThe washer fluid reservoir is located in the
engine compartment and holds approx.
6.8 US qts (6.5 liters).
When there is less than approximately 1 US qt
(1 liter) remaining in the reservoir, the washer
fluid spray will be directed to the windshield
only.
During cold weather, the reservoir should be
filled with windshield washer solvent contain-
ing antifreeze.
Changing coolant
G027087
Coolant reservoirNormally, the coolant does not need to be
changed. If the system must be drained, con-
sult a trained and qualified Volvo service tech-
nician.
CAUTION
•
If necessary, top up the cooling system
with Volvo Genuine Coolant/Antifreeze
only (a 50/50 mix of water and anti-
freeze).
•
Different types of antifreeze/coolant
may not be mixed.
•
If the cooling system is drained, it
should be flushed with clean water or
premixed anti-freeze before it is refilled
with the correct mixture of water/anti-
freeze.
•
The cooling system must always be
kept filled to the correct level, and the
level must be between the MIN and
MAX marks. If it is not kept filled, there
can be high local temperatures in the
engine which could result in damage.
Check coolant regularly!
•
Do not top up with water only. This
reduces the rust-protective and anti-
freeze qualities of the coolant and has a
lower boiling point. It can also cause
damage to the cooling system if it
should freeze.
•
Do not use chlorinated tap water in the
vehicles cooling system.

09 Maintenance and servicingFluids
09212
WARNING
•
Never remove the radiator cap while the
engine is warm. Wait until the vehicle
cools.
•
If it is necessary to top up the coolant
when the engine is warm, unscrew the
expansion tank cap slowly so that the
overpressure dissipates.
Brake fluid reservoir
G000000
The brake fluid should always be above the
MIN mark on the side of the reservoir. Check,
without removing the cap, that there is suffi-
cient fluid in the reservoir.Fluid type: DOT 4+ boiling point >536 °F
(280 °C), P/N 9437433.
Replace: Every second year or 30,000 miles
(48,000 km). The fluid should be replaced once
a year or every 15,000 miles (24,000 km) when
driving under extremely hard conditions
(mountain driving, etc.).
Always entrust brake fluid changing to a
trained and qualified Volvo service technician.
Power steering fluid reservoir
FULL
ADD
G026991
The fluid level should always be between the
ADD and FULL marks.Fluid type: Volvo synthetic power steering fluid
(Pentosin CHF 11S) P/N 1161529 or equiva-
lent.
Replace: No fluid change required.
If a problem should occur in the power steering
system or if the vehicle has no electrical current
and must be towed, it is still possible to steer
the vehicle. However, keep in mind that greater
effort will be required to turn the steering
wheel.

09 Maintenance and servicingBattery
09214
Battery maintenance
A
G030882
Two types of battery may be used and are fully
interchangeableThe battery in your vehicle is located under the
floor of the cargo compartment.
Driving habits and conditions, climate, the
number of starts, etc. all affect the service life
and function of the battery. In order for your
battery to perform satisfactorily, keep the fol-
lowing in mind:
G030883
•
Check the fluid level in each cell in the bat-
tery every 24 months or every 15,000
1
miles (24,000 km), whichever is sooner.
The fluid should be at the level shown in the
illustration above (A)
2. Do not overfill.
•
Use a screw driver to open the caps or
cover and a flashlight to inspect the level.
•
If necessary, add distilled water. The level
should never be above the indicator (A)
2.
•
The fluid level should be checked if the
battery has been recharged.
•
After inspection, be sure the cap over each
battery cell or cover is securely in place.
•
Check that the battery cables are correctly
connected and properly tightened. Route
ventilation hose through opening in floor
(see one of the illustrations in "Replacing
the battery" on page 215).
•
Never disconnect the battery when the
engine is running, for example when
changing the battery.
•
The battery should be disconnected from
the vehicle when a battery charger is used
directly on the battery.
•
However, if the battery is being charged via
the connecting points in the engine com-
partment (see page 141), the battery must
be connected.WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related acces-
sories contain lead and lead compounds,
chemicals known to the state of California
to cause cancer and reproductive harm.
Wash hands after handling.
1More frequently in warm climates.2The level indicator inside the battery could be designed in various ways. See illustrations.

12 Index
12274
1, 2, 3 ...12-volt sockets.......................................... 75AA/C (air conditioning)...........................93, 94
ABS.......................................................... 143
Active Bi-Xenon headlights (ABL)........60, 64
Airbag system............................................ 20
Air cleaner................................................ 207
Air conditioning.......................................... 90
Air distribution...................................... 92, 94
Air quality sensor....................................... 93
Air vents..................................................... 92
Alarm........................................................ 125
All Wheel Drive......................................... 142
All Wheel Drive – towing.......................... 150
Anti-lock brake system
warning light......................................... 56
Anti-lock Brake System (ABS)................. 143
Ashtray..................................................... 109Audio
system introduction............................ 236
Audio system
Rear seat entertainment (option)........ 253
AUTO (climate control)......................... 94, 95
Automatic transmission........................... 138
Autostart..........................................133, 135
AUX (audio system).................................248
Average speed........................................... 71
AWD......................................................... 142
BBass......................................................... 239
Battery..................................................... 205
maintenance....................................... 214
specifications...................................... 270
Battery – replacing................................... 215
Belt check................................................ 206
Black Box (Vehicle Event Data)............... 202
Blind Spot Information System (BLIS)..... 159
Blower (fan)................................................ 95Booster cushion
accessory............................................. 42
integrated.............................................. 47
Brake fluid................................................ 212
Brake system........................................... 143
Bulbs........................................................ 217
Bulbs, replacing....................................... 217
CCapacities, fluids..................................... 265
Capacity weight....................................... 175
Cargo area cover..................................... 115
Cargo grid................................................ 114
Cargo net................................................. 112
Catalytic converter, three-way................. 272
CD Pause................................................. 249
Central locking system - remote control. 119
Changing a wheel.................................... 182
Changing coolant..................................... 206
Charge air cooler..................................... 269
Check Engine warning light....................... 57
Child restraint anchors......................... 43, 45