2012 VOLVO C70 light

09 Maintenance and servicing
Maintaining your car 09
216
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 of
inspection 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, haveyour 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-
way driving is typically needed to allow
OBD II to reach readiness. Your Volvo
retailer can provide you with more infor-
mation on planning a trip.
•Maintain your vehicle in accordance with
your vehicle's maintenance schedule.

09 Maintenance and servicing
Hood09
217 Opening the hood
G031032
To open the hood:
1. Pull the lever located under the left side of
the dash to release the hood lock.
2. Lift the hood slightly.
3. Press up the release control located under
the front edge of the hood (at the center)
up to the right, and lift the hood.
WARNING
Check that the hood locks engage properly
when closed.

09 Maintenance and servicing
Engine compartment 09
218
Cooling system expansion tank
Power steering fluid reservoir (concealed
behind the headlight)
Dipstick – engine oil
Radiator
Cooling fan
Washer fluid reservoir
Engine oil filler cap
Brake/clutch fluid reservoir
Battery
Relay/fuse box
Air cleaner
WARNING
The cooling fan may start or continue to
operate (for up to 6 minutes) after the engine
has been switched off.

09 Maintenance and servicing
Battery 09
224
Battery maintenance
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:
Check the fluid level in each cell in the battery
every 24 months or every 15,000
1 miles
(24,000 km), whichever is sooner.
•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 15
minutes 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.
Battery symbols
Wear protection goggles
See owner’s manual for
details
Keep away from children
Corrosive
1More frequently in warm climates.

09 Maintenance and servicing
Replacing bulbs 09
226* Option/accessory, for more information, see Introduction.
Introduction
Before replacing bulbs in your vehicle, please
keep the following points in mind:
NOTE
Never touch the glass of bulbs with your fin-
gers. 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 a
trained and qualified Volvo service techni-
cian.
Certain bulbs should only be replaced by a
trained and qualified Volvo service techni-
cian:
•Courtesy lighting
•Reading lights
•Glove compartment lights
•Turn signals and courtesy lights in the
side door mirrors
•High-mounted brake lights
•Active Bending Lights, Brake lights
See page 232 for a list of bulb specifications.
Removing the headlight housing
WARNING
•The engine should not be running when
changing bulbs.
•If the engine has been running just prior
to replacing bulbs in the headlight hous-
ing, please keep in mind that compo-
nents in the engine compartment will be
hot.
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.
The entire headlight housing must be lifted out
when replacing the high/low beam, parking
light, turn signal, and side marker bulbs. To lift
out the housing:
1. Remove the key from the ignition and turn
the headlight switch to position
.
2. Open the hood.
3. Pull up the headlight housing's retaining
pin.
4. Pull out the headlight housing.

09 Maintenance and servicing
Replacing bulbs09

227
5. Disconnect the wiring connector by press-
ing down the clip with your thumb while at
the same time pulling the connector with
your other hand.
6. Lift out the headlight housing and place it
on a soft surface to avoid scratching the
lens.
CAUTION
When disconnecting the connector, pull on
the connector itself and not on the wiring.
After the defective bulb has been replaced,
reinsert the housing in the reverse order. Check
that the retaining pin is correctly inserted.
Low beam bulb
Cover with retaining clamps
1. Open the hood and remove the headlight
housing (see page 226 for instructions).
2. Release the retaining clamps on the cover
and remove it.
3. Release the bulb's retaining spring holding
the bulb in place by pressing it first to the
left to release it and then moving it outward
and downward.
4. Pull out the bulb.
Low beam bulb
Installing a new bulb1. Insert the new bulb. It can only be installed
in one position.
2. Press the retaining spring inward and
upward and slightly to the right until it
snaps into place.
3. Press the wiring connector onto the bulb.
4. Put the plastic cover in place.
5. Press the retaining clamps back into place.
6. Reinstall the headlight housing (see
page 226).

09 Maintenance and servicing
Replacing bulbs 09
228* Option/accessory, for more information, see Introduction.
High beam bulb
Halogen high beam bulb
1. Open the hood.
2. Remove the headlight housing (see
page 226).
NOTE
The halogen high beam bulb has a different
socket on vehicles equipped with the
optional Active Bending Lights. On these
models, pull the bulb straight out.
WARNING
Active Bending Lights* – due to the high
voltage used by these headlights, the Active
Bending Light bulbs should only be
replaced by a trained and qualified Volvo
service technician.
3. Driver's side headlight: Turn the bulb
holder counterclockwise.
Passenger's side headlight: Turn the bulb
holder clockwise.
4. Pull out the bulb holder and replace the
bulb.
5. Reinstall the bulb holder. It can only be
installed in one position.
6. Reinstall the headlight housing (see
page 226).
Parking light bulb
1. Turn the bulb holder counterclockwise,
pull it out and replace the bulb.
2. Press the bulb holder back into place. It
can only be installed in one position.
NOTE
Vehicles equipped with the optional Active
Bending Lights (headlights) have LED park-
ing lights that cannot be replaced.

09 Maintenance and servicing
Replacing bulbs09

* Option/accessory, for more information, see Introduction.229 Turn signal
1. Turn the bulb holder counterclockwise and
remove it.
2. Remove the bulb from the holder by press-
ing it in and twisting it counterclockwise.
3. Insert a new bulb and reinstall the bulb
holder in the headlight housing.
Side marker light
1. Turn the bulb holder counterclockwise,
pull it out, and replace the bulb.
2. Reinstall the bulb holder. It can only be
installed in one position.
Front fog lights*
1. Switch off all lights and turn the key to
position 0.
2. Using a screwdriver or other suitable tool,
pry out the fog light cover and pull it
straight out as shown in the illustration.
> (Release the clips (1) and then pull
straight out (2).)
3. Unscrew the lamp housing's retaining
screw and remove the housing.
4. Disconnect the connector from the bulb.
5. Turn the bulb counterclockwise and pull it
out.