2011 VOLVO XC70 check engine light

07 Maintenance and specifications
Hood and engine compartment
07
259 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.

07 Maintenance and specifications
Replacing bulbs
07

265
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 and
remove the remote key from the ignition
slot
1.
2. (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.
3. (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.
4. Lift out the housing and place it on a soft
surface to avoid scratching the lens.
5. 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 264.
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.

07 Maintenance and specifications
Wiper blades and washer fluid
07
272
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.
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 filledwith windshield washer solvent containing
antifreeze. For capacities, see page 299.

07 Maintenance and specifications
Battery
07

273 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
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 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.
Never use a quick charger to charge the bat-
tery.
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
The life of the battery is shortened if it
becomes discharged repeatedly.
Maintenance
•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.

09 Index
09
307
license plate lights.............................. 269
side marker lights...............................267
specifications...................................... 270
taillight................................................ 268
C
Camera, Park Assist................................ 189
Capacity weight....................................... 236
Cargo area
changing bulbs................................... 269
floor rails............................................. 213
hooks for securing loads............213, 214
steel grid............................................. 216
Cargo area cover..................................... 217
Cargo area net......................................... 217
Catalytic converter................................... 209
CD player/changer................................... 147
Cell phone, hands-free connection......... 149
Central locking system, introduction......... 54
Chains...................................................... 239
Check engine light..................................... 74
Child restraints
recalls and registration......................... 47Child restraint systems.............................. 38
booster cushions.................................. 44
convertible seats.................................. 42
infant seats........................................... 40
ISOFIX/LATCH anchors........................ 45
top tether anchors................................ 46
Child safety.......................................... 36, 37
booster cushions.................................. 44
child restraint systems.......................... 38
convertible seats.................................. 42
infant seats........................................... 40
Child safety locks...................................... 51
Climate system........................................ 132
air distribution............................. 129, 134
air vents.............................................. 129
Interior Air Quality System.................. 129
introduction......................................... 128
passenger compartment filter............ 128
refrigerant........................................... 128
Clock, setting............................................. 78
Cold weather driving................................ 204
Collision warning system......................... 174
Compass in rearview mirror..................... 101
Conserving electrical current................... 203
Convertible seats....................................... 42
Coolant............................................262, 299Cooling system, general information....... 203
Courtesy lighting.................................. 91, 92
Crash mode............................................... 35
Cruise control..................................160, 161
adaptive.............................................. 162
Curb weight............................................. 236
Current, conserving................................. 203
D
Defroster.................................................. 132
Detachable key blade..........................58, 61
Dimensions
XC70................................................... 294
Disconnecting the front passenger’s air-
bag....................................................... 26, 27
Dome lighting....................................... 91, 92
Door mirrors............................................... 99
Driver alert............................................... 180
Driver distraction warning.......................... 13
Driving economically................................ 202
Driving in cold weather............................ 204
Driving through water..............................203

09 Index
09
308
E
ECC.........................................130, 132, 133
Economical driving.................................. 202
Electric parking brake.............................. 116
Electronic Climate Control.......130, 132, 133
air distribution table............................ 134
Interior Air Quality System.................. 133
ventilated seats................................... 130
Emergency locking retractor...................... 37
Emergency starting.................................. 109
Emergency towing...........................222, 223
Emission inspection readiness................ 257
Engine
overheating........................................... 77
specifications...................................... 296
starting................................................ 107
switching off....................................... 109
Engine compartment overview................259
Engine oil
checking............................................. 260
low pressure warning light.............. 75, 76
specifications...................................... 298
volumes.............................................. 299
Environment............................................... 12Eyelets for anchoring loads..................... 213
F
Federal Clean Air Act............................... 256
Floor rails................................................. 213
Fluid specifications.................................. 299
Fog lights
front, changing bulbs.......................... 268
front/rear............................................... 90
Four C (active chassis system)................159
Front airbags.............................................. 22
disconnecting passenger’s side air-
bag.................................................. 26, 27
Front fog lights........................................... 90
changing bulbs................................... 268
Front park assist.............................. 185, 187
Front seats...........................................81, 83
heated................................................. 130
Fuel filler cap........................................... 209
Fuel filler door, opening........................... 208
Fuel level warning light.............................. 75
Fuel requirements............................ 206, 207
Fuel tank volume.....................................299Fuses............................... 276, 277, 280, 283
G
Gasoline requirements............................. 207
Gas tank volume...................................... 299
Gauges...................................................... 73
Geartronic................................................ 112
Geartronic automatic transmission.......... 112
Generator warning light............................. 76
Glossary of tire terminology..................... 235
Grocery bag holder.................................. 215
Gross vehicle weight...............................236
H
Hazard warning flashers............................ 90
HD digital radio........................................ 141
Headlights
Active Bending Lights........................... 89
changing bulbs...........................265, 266
high/low beams.................................... 88
high beam flash.................................... 88

09 Index
09
310
Locks, child safety..................................... 51
Low beams................................................ 88
Low fuel level warning light........................ 75
Low oil pressure warning light................... 76
M
Main instrument panel............................. 126
Maintenance............................................ 256
hoisting the vehicle............................. 257
performed by the owner.....................257
Malfunction indicator light......................... 74
Menu system........................................... 124
overview.............................................. 124
Messages in the instrument panel........... 126
Mirrors
defroster............................................. 100
power door........................................... 99
rearview, auto-dim function................ 100
retractable............................................. 99
vanity.................................................. 198
Moonroof................................................. 102Motor oil
checking............................................. 260
specifications...................................... 298
volumes.............................................. 299
N
Net in cargo area..................................... 217
O
Occupant safety........................................ 16
Occupant weight sensor...................... 26, 27
Octane recommendations.......................207
Odometer, trip........................................... 78
Oil
checking............................................. 260
specifications...................................... 298
volumes.............................................. 299
On Call Roadside Assistance.................. 304
Overhead courtesy lighting.................. 91, 92
Overheating, engine................................... 77
Oxygen sensors, heated.......................... 210
P
Paint, touching up.................................... 287
Park assist.......................................185, 187
Park Assist Camera................................. 189
Parking brake
electric, applying/releasing................. 116
warning light......................................... 76
Parking lights............................................. 89
changing bulbs................................... 267
Personal Car Communicator, unique func-
tions........................................................... 57
Polishing.................................................. 285
Power front seat
memory function................................... 82
with keyless drive................................. 83
Power mirrors............................................ 99
defroster............................................. 100
Power moonroof...................................... 102
Power steering
fluid..................................................... 263
speed-dependent............................... 159
Power steering fluid................................. 299
Power tailgate.......................................... 211