2010 VOLVO S40 check engine

09 Maintenance and servicing
Maintaining your car09
215
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
Engine oil 09
218
Changing engine oil and oil filter
See page 275 for oil specifications. Refer to
the Warranty and Service Records Information
booklet for information on the oil change inter-
vals.
Volvo recommends Castrol.
NOTE
•Volvo does not recommend the use of
oil additives.
•Synthetic oil is not used when the oil is
changed at the normal maintenance
intervals except at owner request and at
additional charge. Please consult a
trained and qualified Volvo service tech-
nician.
Checking and adding oilThe 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 car 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.
G020338
Location of dipstick and oil filler cap
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.
3. Add oil if necessary. If the level is close to
the MIN mark, add approximately
1 US quart (1 liter) of oil.
4. Run the engine until it reaches normal
operating temperature.
5. 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
MAX mark.
G020336
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.
•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.

09 Maintenance and servicing
Fluids 09
220
Washer fluid
G026425
Washer fluid reservoir
The washer fluid reservoir is located in the
engine compartment and holds approximately
6.8 US qts (6.5 liters). During cold weather, the
reservoir should be filled with windshield
washer solvent containing antifreeze.
Coolant
G020334
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
Fluids09
221
WARNING
Never remove the radiator cap while the
engine is warm. Wait until the vehicle 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
G020333
Brake fluid reservoir
The brake fluid should always be between the
MIN and MAX marks on the side of the reser-
voir. Check, without removing the cap, that
there is sufficient fluid in the reservoir.
Fluid type: DOT 4+ boiling point >536 °F(280 °C), P/N 9437433
Replace: The fluid should be replaced accord-
ing to the intervals specified in the Warranty
and Service Records Information booklet.
When driving under extremely hard conditions
(mountain driving, etc), it may be necessary to
replace the fluid more often. Consult your
Volvo retailer. Always entrust brake fluid
changing to a trained and qualified Volvo serv-
ice 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
The fluid level is checked at each service inter-
val.
Fluid type: Volvo power steering fluid or equiv-
alent.
Replace: No fluid change required.
WARNING
If a problem should occur in the power
steering system or if the vehicle has no elec-
trical 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
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.

12 Index
12
284
E
Economical driving.................................. 138
Electrical current – conserving................ 140
Electrically operated moonroof.................. 81
Electrical system...................................... 278
Electronic Brake Force Distribution
(EBD)........................................................ 156
Electronic Climate Control......................... 93
air distribution table............................ 101
Electronic Climate Control (ECC)............... 98
Emergency brake....................................... 75
Emergency locking retractor...................... 36
Emergency starting.................................. 161
Emergency towing................................... 159
Emission inspection readiness................ 214
Engine
specifications...................................... 276
starting................................................ 146
starting with keyless drive.................. 148
Engine compartment overview................217
Engine oil................................................. 218
changing............................................. 218
checking............................................. 218specifications...................................... 275
volumes.............................................. 273
Equalizer, audio system........................... 245
Eyelets for anchoring loads..................... 117
F
Federal Clean Air Act............................... 212
Flat tires
changing............................................. 192
repairing with tire sealing system....... 194
Fluids and oils.......................................... 273
FM1/FM2 menu....................................... 247
Fog lights
front...................................................... 64
rear........................................................ 64
Front airbags.............................................. 22
disconnecting passenger’s side airbag 26
Front fog lights........................................... 64
Front park assist...................................... 170
Front seats............................................... 104
adjusting the head restraints.............. 107
folding backrests................................ 104
manually operated.............................. 104
power.................................................. 105Fuel filler door
unlocking.............................................. 65
Fuel gauge................................................. 53
Fuel requirements.................................... 142
Fuel tank volume.....................................273
Fuses, replacing......................................232G
Gasoline requirements............................. 142
Geartronic................................................ 152
Glossary of tire terminology..................... 185
Glove compartment................................. 112
locking................................................ 130
Gross vehicle weight (GVW)............186, 271
H
Hand brake (parking brake)....................... 75
Hazard warning flashers............................ 74
HD digital radio........................................ 249
Headlights.................................................. 63
Active Bending Lights........................... 63

12 Index
12
285
changing bulbs................................... 225
high and low beams............................. 66
high beam flash.................................... 66
Headlight washers..................................... 72
Head restraints, rear seat........................115
High beam flash......................................... 66
High beams................................................ 66
Hoisting the vehicle.................................214
Home safe lighting............................... 66, 84
Hood, opening......................................... 216
I
Ignition switch.......................................... 145
Immobilizer.............................................. 146
Immobilizer (start inhibitor)...................... 120
Indicator and warning symbols............ 53, 55
Infant seats................................................ 39
Inflatable Curtain........................................ 30
Inflation pressure..................................... 179
Inflation pressure, checking..................... 180Inflation pressure table
Canadian models................................ 182
US models.......................................... 181
Information display..............................53, 60
messages in.......................................... 60
Information symbol.................................... 55
Inspection, preparing for......................... 214
Inspection readiness................................ 214
Instrument overview.................................. 50
Instrument panel.................................. 50, 53
Instrument panel lighting........................... 64
Interior lighting......................................... 109
iPodŸ connector (audio system)............. 243
ISOFIX/LATCH anchors............................. 44
J
Jacket hanger.......................................... 112
Jump starting........................................... 161
K
Key (ignition switch) positions................. 145
Key blade.........................................122, 126
Keyless drive
location of antennas (pacemaker warn-
ing)...................................................... 127
locking and unlocking the vehicle...... 125
power seat memory............................ 126
starting the engine.............................. 148
Keylock.................................................... 146
Kickdown.................................................152
L
Label information..................................... 268
LATCH (ISOFIX) anchors........................... 44
Lighting panel............................................ 63
Load anchoring eyelets...........................117
Loading the vehicle
roof loads............................................ 165
Locking
from the inside.................................... 129
glove compartment............................. 130
Locking the vehicle.................................. 125

12 Index
12
287
Remote key.............................................. 120
battery replacement............................ 121
functions............................................. 120
key blade............................................ 122
Replacing fuses....................................... 232
Reporting safety defects
Canada................................................. 17
USA....................................................... 16
Roof loads............................................... 165
S
Safety, occupant........................................ 16
Safety defects, reporting
Canada................................................. 17
USA....................................................... 16
Safety locks, child.................................... 131
Seat belt
reminder................................................ 19
Seat belts................................................... 18
Automatic locking retractor/Emergency
locking retractor.................................... 36
buckling................................................ 18
maintenance......................................... 20
pretensioners........................................ 18unbuckling............................................ 18
use during pregnancy........................... 19
Seats, front.............................................. 104
Shiftlock
override............................................... 153
Side door mirrors....................................... 79
Side impact airbags................................... 29
Side impact protection (SIPS) airbags....... 29
Sirius satellite radio.................................. 251
Snow chains............................................ 189
Snow tires................................................ 189
Sound control, automatic........................246
Sound settings, audio system................. 244
Spare tire................................................. 190
Stability system....................................... 157
Dynamic Stability Traction Control
(DSTC)................................................ 157
Starting the engine..................................146
with keyless drive...............................148
Start inhibitor (immobilizer)..............120, 146
STC, stability system............................... 157
Steering wheel
adjusting............................................... 74
keypad................................................ 243Storage compartments............................ 111
Studded tires........................................... 189
Subwoofer............................................... 245
Sunroof (moonroof).................................... 81
Supplemental restraint system.................. 21
T
Tachometer................................................ 53
Temporary spare tire...............................190
Three-way catalytic converter................. 280
Tire inflation............................................. 179
Tire inflation pressure
Canadian models................................ 182
US models.......................................... 181
Tire Pressure Monitoring System (TPMS) 199
Tires.........................................................176
age...................................................... 176
changing............................................. 192
changing from summer to winter........ 177
designations....................................... 183
glossary of terms................................ 185
improving economy............................ 176
inflation............................................... 179
inflation pressure, checking................ 180