2010 VOLVO S40 light

09 Maintenance and servicing
Battery09

223 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 bulbs09

225 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:
•Courtesylighting
•Reading lights
•Glove compartment lights
•Turn signals and courtesy lights in the
side door mirrors
•Brake lights
•Active Bending Lights, Brake lights
Removing the headlight housing
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.
G019599
The entire headlight housing must be lifted out
when replacing the high/low beam, parkinglight, 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.
G019600
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.

09 Maintenance and servicing
Replacing bulbs 09
226* Option/accessory, for more information, see Introduction.
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.
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.
Low beam bulb
G019131
Cover with retaining clamps
1. Open the hood and remove the headlight
housing (see page 225 for instructions).
2. Release the retaining clamps on the cover.
3. Release the bulb's retaining spring holding
the bulb in place by pressing it inward and
downward.
4. Pull out the bulb.
G019133
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 225).

09 Maintenance and servicing
Replacing bulbs09

* Option/accessory, for more information, see Introduction.227 High beam bulb (halogen)
G019136
Halogen high beam bulb
1. Open the hood.
2. Remove the headlight housing (see
page 225).
3. Remove the cover on the upper side of the
headlight housing by turning it counter-
clockwise.
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.
4. Driver's side headlight: Turn the bulb
holder counterclockwise.
Passenger's side headlight: Turn the bulb
holder clockwise.
5. Pull out the bulb holder and replace the
bulb.
6. Reinstall the bulb holder. It can only be
installed in one position.
7. Reinstall the cover on the upper side of the
headlight housing by turning it clockwise.
8. Reinstall the headlight housing (see
page 225).
Parking light bulb
G019145
1. Open the hood.
2. Remove the headlight housing, see
page 225.
3. Remove the cover on the upper side of the
headlight housing by turning it counter-
clockwise.
4. Pull out the bulb holder.
5. Replace the bulb.
6. Press the bulb holder back into position. It
will click into place.
7. Reinstall the cover on the upper side of the
headlight housing by turning it clockwise.
8. Reinstall the headlight housing.

09 Maintenance and servicing
Replacing bulbs 09
228* Option/accessory, for more information, see Introduction.
Turn signal
G019150
1. Open the hood.
2. Remove the headlight housing, see
page 225.
3. Turn the bulb holder counterclockwise and
remove it.
4. Remove the bulb from the holder by press-
ing it in and twisting it counterclockwise.
5. Insert a new bulb and reinstall the bulb
holder in the headlight housing.
6. Reinstall the headlight housing.
Side marker light
G018050
1. Open the hood.
2. Remove the headlight housing, see
page 225.
3. Turn the bulb holder counterclockwise,
pull it out, and replace the bulb.
4. Reinstall the bulb holder. It can only be
installed in one position.
5. Reinstall the headlight housing.
Front fog lights*
G017609
1. Switch off all lights and turn the key to
position 0.
2. Remove the panel around the fog light
housing by inserting a screw driver as
shown in the illustration and pressing the
panel outward to release the retaining
clips.
3. Grasp the edge of the panel and pull it
straight out.
4. Unscrew the screw in the fog light housing
and remove it.
5. Turn the bulb counterclockwise and
remove it.

09 Maintenance and servicing
Replacing bulbs09

229
6. Insert a new bulb by turning it clockwise
(the profile on the bulb holder will corre-
spond with the profile in the base of the
bulb).
7.
Reinsert the bulb holder. The mark TOP
should be upward.
Removing the taillight bulb holder
G020916
All bulbs in the taillight cluster can be replaced
from the trunk. To access the bulb holders:
1. Switch off all lights and turn the key to
position 0.2. Remove the covers in the left/right panels
to access the bulb holders.
3. Disconnect the wiring connector from the
affected bulb holder.
4. Press the catches together and pull out the
bulb holder.
5. Replace the defective bulb.
6. Press the bulb holder into place and rein-
stall the cover.
Location of taillight bulbs
G018055
Location of taillight bulbs
Brake light (LED)1
Taillight
Parking light
Fog light (driver's side only)
Turn signal
Back-up light
NOTE
If the message indicating a burned out bulb
remains in the information display after the
bulb has been replaced, consult a trained
and qualified Volvo service technician.
High-level brake lightThese bulbs should only be replaced by a
trained and qualified Volvo service technician.
1The wiring to the LED brake lights is permanently connected to the bulb holder. It should not be removed.

09 Maintenance and servicing
Replacing bulbs 09
230
License plate lighting
G014843
1. Switch off all lights and turn the key to
position 0.
2. Remove the screws with a screw driver.
3. Detach the entire bulb housing and care-
fully pull it out. Turn the connector coun-
terclockwise and pull out the bulb.
4. Replace the defective bulb.
5. Reinstall the connector and turn it clock-
wise.
6. Reinstall the entire bulb housing and screw
it into place.
Footwell lighting
G020795
The footwell lighting is located under the dash-
board on the driver's and passenger's sides.
To replace a bulb:
1. Insert a screwdriver under the edge of the
lens. Turn the screwdriver gently to detach
the lens.
2. Remove the defective bulb.
3. Install a new bulb.
4. Press the lens back into place.
Trunk lighting
G020915
1. Insert a screwdriver and turn it gently to
detach the bulb housing.
2. Remove the defective bulb.
3. Install a new bulb.
4. Press the bulb housing back into place.

09 Maintenance and servicing
Replacing bulbs09
231 Vanity mirror lighting
G020253
1. Insert a screwdriver under the center of the
lower edge of the mirror, turn it, and care-
fully pry up the lugs at the edge.
2. Move the screwdriver under the edge on
the left and right-hand sides (near the black
rubber sections) and pry carefully to
release the lower edge of the mirror.
3. Pry carefully and lift out the entire mirror
and the cover.
4. Remove the defective bulb and replace it
with a new one.
5. To reinstall the mirror, begin by pressing
the three lugs at the upper edge of the mir-
ror back into place.6. Press the three lower lugs back into place.