2010 VOLVO XC90 engine

09 Maintenance and servicing
Engine oil 09
210
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 MAX mark. 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
Fluids09

211 Washer fluid reservoir
G027097
Washer fluid reservoir
The 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 reservoir
Normally, 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 servicing
Fluids 09
212
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.
WARNING
•If the fluid level is below the MIN mark
in the reservoir or if a brake-related
message is shown in the information
display: DO NOT DRIVE. Have the car
towed to a trained and qualified Volvo
service technician and have the brake
system inspected.
•Dot 4+ should never be mixed with any
other type of brake fluid.
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 servicing
Battery 09
214
Battery maintenance
The 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:
•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.
•The fluid level should be checked if the
battery has been recharged.
•After inspection, be sure the cap over each
battery cell or the cover is securely in
place.
•Check that the battery cables are correctly
connected and properly tightened.
•Never disconnect the battery when the
engine is running, or when the key is in the
ignition. This could damage the vehicle's
electrical system.
•The battery should be disconnected from
the vehicle when a battery charger is used
directly on the battery.
•To help keep the battery in good condition,
the vehicle should be driven for at least 15minutes a week or connected to a charger
with an automatic charging function.
•If the battery is fully discharged a number
of times, this may shorten its service life.
Keeping the battery fully charged helps
prolong its service life.
•The service life of a battery is affected by
factors such as driving conditions and cli-
mate. Extreme cold may also further
decrease the battery’s starting capacity.
•Because the battery’s starting capacity
decreases with time, it may be necessary
to recharge it if the vehicle is not driven for
an extended period of time or if the vehicle
is usually only driven short distances.
•
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.
WARNING
•Never expose the battery to open flame
or electric spark.
•Do not smoke near the battery.
•Battery fluid contains sulfuric acid. Do
not allow battery fluid to contact eyes,
skin, fabrics or painted surfaces. If con-
tact occurs, flush the affected area
immediately with water. Obtain medical
help immediately if eyes are affected.
NOTE
Used batteries should be properly disposed
of at a recycling station or similar facility, or
taken to your Volvo retailer.

09 Maintenance and servicing
Replacing bulbs09

* Option/accessory, for more information, see Introduction.217
When replacing bulbs, keep the following
points in mind:
•Never touch the glass of bulbs with your
fingers. Grease and oils from your fingers
vaporize in the heat and will leave a deposit
on the reflector, which will damage it.
•The optional Active Bending Light bulbs
contain trace amounts of mercury. These
bulbs should always be disposed of by an
authorized Volvo retailer.
The following bulbs should only be replaced by
a trained and qualified Volvo service techni-
cian:
•Active Bending Lights
•Courtesy (dome) lighting
•Reading lights
•Glove compartment lights
•Turn signals and courtesy lights in the side
door mirrors
•High-mounted brake lights
Replacing high/low beams/turn signal/
parking light bulbs
WARNING
•The engine should not be running when
changing bulbs.
•When changing in the headlight hous-
ing, if the engine has been running just
prior to replacing bulbs, please be
aware that components in the engine
compartment will be hot.
G027081
The entire lamp housing must be lifted out
when replacing these bulbs.To lift out the lamp housing:
1. Switch off the ignition.
2. Open the hood.
3. Pull up the retaining pins (see the illustra-
tion).
4. Lift out the lamp housing.
G027083
WARNING
Active Bending Lights* - due to the high
voltage used by these headlights, these
bulbs should only be replaced by a trained
and qualified Volvo service technician.

09 Maintenance and servicing
Fuses 09
224* Option/accessory, for more information, see Introduction.
Replacing fuses
G032337
Relays/fuse box in the engine compart-
ment
Fuse box in the passenger compartment,
behind the plastic cover
Fuse box in the passenger compartment,
on the edge of the dashboard
Fuse box in the cargo compartment
Fuse box in the cargo compartment1.
Additional fuses in cargo compartment
(XC90 Executive*)If an electrical component fails to function, it is
possible that a fuse has blown.
The fuse boxes are located in four different
places, see the illustration above.
A label on the inside of each cover indicates the
amperage and the electrical components that
are connected to each fuse.
The easiest way to see if a fuse is blown is to
remove it. Pull the fuse straight out. If a fuse is
difficult to remove, you will find a special fuse
removal tool (and several extra fuses) in the
passenger compartment fuse box on the driv-er's end of dashboard. From the side, examine
the curved metal wire (see the illustration) to
see if it is broken. If so, put in a new fuse of the
same color and amperage (written on the
fuse). Spare fuses are stored in the fuse box in
the engine compartment and the passenger
compartment. If fuses burn out repeatedly,
have the electrical system inspected by a
trained and qualified Volvo service technician.
1Certain markets only.

09 Maintenance and servicing
Fuses 09
226* Option/accessory, for more information, see Introduction.
Fuses in the engine compartment
G026972
When replacing fuses, be sure to replace a
blown fuse with a new one of the same color
and amperage (written on the fuse).
NoA
1ABS30
2ABS30
3Headlight washers35
4–20
5Auxiliary lights*35
NoA
6Starter motor relay25
7Windshield wipers15
8Fuel pump15
9Transmission control module
(V8 and 6-cyl.)15
10Ignition coils, engine control
module20
11Throttle pedal sensor, A/C
compressor, e-box fan10
NoA
12Engine control module, fuel
injectors, mass airflow sensor15
13Throttle control (V8), Intake
manifold actuator (6-cyl.)10
14Heated oxygen sensor20
15Crankcase ventilation, sole-
noid valves, A/C connection,
leakage diagnostics, engine
control module (V8, 6-cyl.),
mass airflow sensor (V8)15

09 Maintenance and servicing
Fuses09

227
NoA
16Driver's side low beam head-
light20
17Passenger's side low beam
headlight20
18–
19Engine control module feed,
engine relay5
20Parking lights15
21Vacuum pump20