2012 VOLVO XC70 check engine

08 Maintenance and specifications
Hood and engine compartment
08
319 Opening and closing the hood
G010951
Pull the lever located under the left side of
the dash to release the hood lock.
Lift the hood slightly. Press the release
control (located under the right front edge
of the hood) to the left, and lift the hood
WARNING
Check that the hood locks properly when
closed.
Engine compartment, overview
G018945
The appearance of the engine compartment
may vary depending on engine model.
Coolant expansion tank
Power steering fluid reservoir
Engine oil dipstick
Radiator
Filler cap for engine oil
Cover over brake fluid reservoir
Battery
Relay and fuse box
Washer fluid reservoir
Air cleaner
WARNING
The cooling fan may start or continue to
operate (for up to 6 minutes) after the engine
has been switched off.
WARNING
The ignition should always be completely
switched off before performing any opera-
tions in the engine compartment.
The distributor ignition system operates at
very high voltages. Special safety precau-
tions must be followed to prevent injury.
Always turn the ignition off when:
•Replacing distributor ignition compo-
nents e.g. plugs, coil, etc.
•Do not touch any part of the distributor
ignition system while the engine is run-
ning. This may result in unintended
movements and body injury.

08 Maintenance and specifications
Engine oil
08
320
Checking the engine oil
The oil level should be checked at regular inter-
vals, particularly during the period up to the
first scheduled maintenance service.
•See page 357 for oil specifications.
•Refer to the Warranty and Service Records
Information booklet for information on the
oil change intervals.
CAUTION
•Not checking the oil level regularly can
result in serious engine damage if the oil
level becomes too low.
•Oil that is lower than the specified qual-
ity can damage the engine.
•Volvo does not recommend the use of
oil additives.
•Always add oil of the same type and
viscosity as already used.
•Never fill oil above the MAX mark. This
could cause an increase in oil consump-
tion.
•Oil changes should be carried out by a
trained and qualified Volvo service tech-
nician.
Checking and adding oil
G021734
Location of the filler cap and dipstick
Volvo recommends Castrol oil products
NOTE
Before checking the oil:
•The car should be parked on a level sur-
face.
•If the engine is warm, wait for at least
10 – 15 minutes after the engine has
been switched off.
G021737
The oil level must be between the MIN and MAX
marks on the dipstick
Checking the oil1. Pull out the dipstick and wipe it with a lint-
free rag.
2. Reinsert the dipstick, pull it out, and check
the oil level. The level must be between the
MIN and MAX marks.

08 Maintenance and specifications
Engine oil
08
321
3. Add oil if necessary. If the level is close to
the MIN mark, add approximately
0.5 US quarts (0.5 liters) of oil.
4. Recheck the level and add more oil if nec-
essary until the level is near the MAX mark.
WARNING
Do not allow oil to spill onto or come into
contact with hot exhaust pipe surfaces.
NOTE
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 your Volvo
retailer.

08 Maintenance and specifications
Fluids
08
322
Coolant
Location of the 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.
See page 359 for information on cooling sys-
tem capacities.
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
vehicle's cooling system.
WARNING
•Never remove the expansion tank cap
while the engine is warm. Wait until the
engine cools.
•If it is necessary to top off the coolant
when the engine is warm, unscrew the
expansion tank cap slowly so that the
overpressure dissipates.
Brake fluid
Location of the brake fluid reservoir
Checking the levelThe fluid reservoir is concealed under the
round cover at the rear of the engine compart-
ment. The round cover must be removed first
before the reservoir cap can be accessed.

08 Maintenance and specifications
Replacing bulbs
08

325
NOTE
•Always switch off the ignition before
starting to replace a bulb.
•The optional Active Bending Light bulbs
contain trace amounts of mercury.
These bulbs should always be disposed
of by a trained and qualified Volvo serv-
ice technician.
Removing the headlight housing1. Switch off the ignition by briefly pressing
the START/STOP ENGINE button.
2. Remove the remote key from the ignition
slot
1.
3. (Upper illustration under "Headlight hous-
ing")
Withdraw the headlight housing's lock-
ing pins.
Pull the headlight housing straight out.
CAUTION
When disconnecting the connector, pull on
the connector itself and not on the wiring.
4. (Lower illustration under "Headlight hous-
ing")
Unplug the wiring connector by holding
down the clip with your thumb.
Pull out the connector with the other
hand.
5. Lift out the housing and place it on a soft
surface to avoid scratching the lens.
6. Replace the defective bulb(s).
Reinserting the headlight housing1. Plug in the connector until it clicks into
place.
2. Reinstall the headlight housing and locking
pins. Check that they are correctly
inserted. The headlight housing must be
properly inserted and secured in place
before the lighting is switched on or the
remote key is inserted into the ignition slot.
3. Check that the lights function properly.
Removing the cover to access the
bulbs
G021745
NOTE
Before starting to replace a bulb, see
page 324.
1. Open the retaining clamp by pressing it to
the side.
2. Press down the clips on the upper edge of
the cover and remove it.
Reinstall the cover in the reverse order.
1Does not apply to vehicles with the optional keyless drive.

08 Maintenance and specifications
Wiper blades and washer fluid
08

331 Wiper blades
The windshield wiper blades are different
lengths. The blade on the driver’s side is longer
than the one on the passenger side.
Service position
Wiper blades in service position
The wiper blades must be in the vertical (serv-
ice) position for replacement, washing or to lift
them away from the windshield when e.g.,
removing ice or snow. To put them in this posi-
tion:
1.
Switch off the ignition (ignition mode 0, see
page 82) and keep the remote key in the
ignition slot
1.2. Move the right steering wheel lever up and
hold it for at least 1 second. The wipers will
then move to the vertical position on the
windshield.
The wipers can be returned to the normal posi-
tion by briefly switching on the ignition (or by
starting the engine).
Replacing the windshield wiper blades
With the wipers in the service position, fold
out the wiper arm from the windshield.
Press the button on the wiper blade attach-
ment and pull the wiper blade straight out,
parallel with the wiper arm.
Slide in the new wiper blade until it clicks
into place.
Check that the blade is securely in place.
CleaningKeeping the windshield and wiper blades clean
helps improve visibility and prolongs the serv-
ice life of the wiper blades. Clean the wiper
blades with a stiff-bristle brush and lukewarm
soap solution or car washing detergent.
1Does not apply to vehicles with the optional keyless drive.

08 Maintenance and specifications
Wiper blades and washer fluid
08
332
Replacing the tailgate wiper blade
G032770
1. Fold the wiper arm outward.
2. Grasp the inner section of wiper blade (at
the arrow).
3. Pull out the blade to release it from the
wiper arm.
4. Press the new wiper blade into place and
check that it seats securely.
5. Fold the wiper arm back toward the tailgate
window.
Filling washer fluid
G021764
Location of the washer fluid reservoir
The windshield and headlight washers share a
common reservoir.
The washer fluid reservoir is located on the
driver's side of the engine compartment. Dur-
ing cold weather, the reservoir should be filled
with windshield washer solvent containing
antifreeze. For capacities, see page 359.

08 Maintenance and specifications
Battery
08

333 Warning symbols on the battery
Wear protective goggles.
Keep away from children.
Avoid smoking, open flames,
and/or sparks.
See the owner's manual.
Contains corrosive acid.
Risk of explosion
Recycle properly
NOTE
A used battery should be disposed of in an
environmentally responsible manner. Con-
sult your Volvo retailer or take the battery to
a recycling station.
Handling
•Check that the battery cables are correctly
connected and tightened.
•Never disconnect the battery when the
engine is running (for example, when
replacing the battery).
•If the battery is fully discharged a number
of times, this may shorten its service life.
•The service life of a battery is affected by
factors such as the number of starts, driv-
ing conditions and climate. Extreme coldmay 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.
•Never use a quick charger to charge the
battery.
CAUTION
The infotainment system's energy-saving
feature may not function correctly or at all,
and/or a message may be displayed if a
battery charger or jumper cables are not
connected properly.
•The negative terminal on the battery
must never be used to connect a
jumper cable or a battery charger. Only
the ground point on the chassis may be
used.
See page 113 for an illustration and addi-
tional information.