2010 VOLVO C70 CONVERTIBLE service

04 Interior
Power retractable hard top
04
102
Operating the power retractable hard
top
G032112
Power retractable hard top button
1.
Turn the ignition key to position II or start
the engine if the vehicle is parked out-
doors.
2. Press the brake pedal.
3.
Opening the hard top: Press and hold
down the button. Release the button when
an audible signal sounds and the message
TOP FULLY DOWN is displayed.
Closing the hard top: Pull up and hold the
button to raise the hard top. Release the
button when an audible signal sounds and
the message
TOP FULLY UP is displayed.
CAUTION
•Please heed any messages that may
appear in the information display while
the top is in operation.
•Any windows that are closed will be
opened approximately 4 inches (10 cm)
while the power retractable hard top is
in operation. The windows will be auto-
matically re-closed when the top is
completely raised or lowered.
WARNING
•See the section “Before operating the
power retractable hard top” on page
100 before operating the power retract-
able hard top.
Never pull the release wire for the power
retractable hard top’s hydraulic system that
is located under the rear seat cushion. This
wire is only intended for use by qualified
service personnel. Pulling this wire could
lead to:
•A high risk of being injured by the power
retractable hard top mechanism.
•Unexpected movement of the hard top,
or the hard top or the trunk could inad-
vertently open.
•The retractable hard top can be dam-
aged.
Power retractable hard top-related text
messages
•PRESS BRAKE TO OPERATE TOPPress the brake pedal to operate the
retractable hard top.
•CLOSE TRUNK TO OPERATE TOP The
trunk is open and must be closed before
operating the power retractable hard top.
•TRUNK DIVIDER IS NOT CLOSED The
trunk divider (see page 101 for more infor-
mation) must be closed before operating
the power retractable hard top.
•TOP INOPERATIVE LOW BATTERY The
battery's charge is too low to operate the
power retractable hard top. In this case,
the top can only be raised. Start the engine,
or if necessary, have the battery charged
before operating the top.
•TOP IS UNLOCKED The power retracta-
ble hard top is not fully up or down. Press/
pull and hold the button again to complete
the operation.
•TOO HOT OR COLD TO OPERATE
TOP The power retractable hard top
mechanism has overheated, or the ambi-
ent temperature is below 14° F (-10° C). If
the mechanism has overheated, wait for
approximately 5 minutes (the message in
the information display will disappear) and
try to lower or raise the top again.

04 Interior
Power retractable hard top
04

103
If a fault in the power retractable hard top
mechanism occurs, the following messages
will be displayed:
•TOP MALFUNCTION SERVICE
REQUIRED The power retractable hard
top cannot be operated. Contact an
authorized Volvo retailer or service techni-
cian. If the top is down in this situation, a
cover for the vehicle is provided in the
trunk. see page 100 for more information.
•TOP MALFUNCTION SEE MANUAL The
power retractable hard top must be oper-
ated according to the following instruc-
tions.
Emergency operation
If the message TOP MALFUNCTION SEE
MANUAL is displayed, the power retractable
hard top cannot be operated in the normal way.
NOTE
If a fault has occurred and the power retract-
able hard top has been raised, it cannot be
lowered again until the fault has been cor-
rected.
CAUTION
Carefully read the information under “Before
operating the power retractable hard top”
(see page 100) before operating the power
retractable hard top. Damage may be
unavoidable if the power retractable hard
top must be operated under such condi-
tions.
1. Press or pull the hard top control button
(see page 102) until ROOF FAILURE SEE
MANUAL is displayed.
2. Release the button.
3. Pull the button again and hold it. After
approximately 5 seconds, the power
retractable hard top will begin to move.
Hold the button up until the top is fully
raised.
NOTE
Movement of the top may stop briefly. How-
ever, the button should be pulled up
throughout the entire operation. An audible
signal will sound during the entire operation.
WARNING
Never pull the release wire for the power
retractable hard top’s hydraulic system that
is located under the rear seat cushion. This
wire is only intended for use by qualified
service personnel. Pulling this wire could
lead to:
•High risk of being injured by the power
retractable hard top’s opening/closing
mechanism.
•Unexpected movement of the hard top/
the hard top or the trunk could inadver-
tently open.
•The retractable hard top can be dam-
aged.

05 Locks and alarm
Remote key and key blade
05
120
When the battery begins to lose its charge, the
Information symbol in the instrument panel
(see page 51) lights up and
KEY BATTERY
LOW VOLTAGE is shown in the information
display.
Replacing the battery in the remote key
If the range of the transmitter is noticeably
reduced, this indicates that the battery (type
CR 2450, 3V) is weak and should be replaced.
To replace the battery:
1. Place the remote key with the keypad
downward. Pry open the cover with a small
slotted screwdriver.
2. Remove the cover.
CAUTION
When replacing the battery, avoid touching
the electrical circuitry in the other half of the
remote key.
3. Note how the + and – sides of the battery
are positioned on the inside of the cover
(see the underside of the cover).
4. Pry out and replace the battery. Avoid
touching the battery and its contact surfa-
ces with your fingers.
5. Press the cover back into place.The old battery should be disposed of properly
at a recycling center or by a trained and quali-
fied Volvo service technician.
Key blade
G019403
Removing the key blade
The key blade can be removed from the remote
key. When removed, it can be used as follows:
•To lock/unlock the driver’s door
•To lock/unlock the glove compartment,
see page 129.
•To open the trunk mechanically, see
page 129.
•For valet locking (see page 122)
Removing the key bladeSlide the spring loaded catch to the side.
While holding the catch, pull the key blade
out of the remote key.
Reinserting the key blade in the remote
key
1. Hold the remote key with the pointed end
down.
2. Carefully slide the key blade into its groove.
3. Gently press the key blade in the groove
until it clicks into place.
Unlocking the doors with the detached
key blade
1. Insert the key blade as far as possible in the
driver's door lock.
2. Turn the key blade clockwise approxi-
mately one-quarter turn to unlock the driv-
er's door only.
NOTE
After unlocking the driver's door with the
key blade, opening the door will trigger the
alarm.
To disable the alarmPress the Unlock button on the remote key, or
insert the key in the ignition switch.

05 Locks and alarm
Valet locking
05
122
Locking points
G033493
Normal locking/unlocking points for the
remote key with the key blade in place
(valet locking not activated):
Doors
Steering wheel lock
Glove compartment
Compartments in door panels
Ski hatch
Trunk
Locking/unlocking points for the remote
key with the key blade removed (valet lock-
ing activated):
Doors
Steering wheel lock
By utilizing the remote key with the key blade
removed, the valet locking feature enables you
to block access to the trunk and glove com-
partment, door panel compartments and the
ski hatch for e.g., valet parking or when the car
is brought to the retailer for service.

05 Locks and alarm
Valet locking
05
123
Activating the valet locking function
G020032
Begin by removing the key blade from the
remote key (see page 120).
NOTE
The first stages of opening the power
retractable hard top offer temporary access
to the contents of the trunk. Therefore,
before activating valet locking, the power
retractable hard top must be up and the
trunk divider (see page 101) must be open.
This makes it impossible to operate the
power retractable hard top.
Insert the key in the glove compartment
lock.
Turn the key blade 180° clockwise to lock
the glove compartment and to lock points
C, D, E, and F and disconnect these points
from the central locking system (a mes-
sage appears in the information display).
Remove the key blade from the glove com-
partment lock.
Give the parking attendant or service person-
nel only the remote key (with the key blade
removed).
Deactivating the valet locking functionTurn the key blade 180° counterclockwise in
the glove compartment lock to deactivate valet
locking (the trunk can then be unlocked using
the remote key).
For information on locking/unlocking the glove
compartment normally, see page 128

06 Starting and driving
General information
06

137
WARNING
After driving through water, press lightly on
the brake pedal to ensure that the brakes
are functioning normally. Water or mud can
make the brake linings slippery, resulting in
delayed braking effect.
CAUTION
•Engine damage will occur if water is
drawn into the air cleaner.
•If the vehicle is driven through water
deeper than 9 in. (25 cm), water may
enter the differential and the transmis-
sion. This reduces the oil's lubricating
capacity and may shorten the service
life of these components.
•Do not allow the vehicle to stand in
water up to the door sills longer than
absolutely necessary. This could result
in electrical malfunctions.
•If the engine has been stopped while the
car is in water, do not attempt to restart
the engine. Have the car towed out of
the water.
Cold weather precautions
If you wish to check your vehicle before the
approach of cold weather, the following advice
is worth noting:
•Make sure that the engine coolant contains
50 percent antifreeze. Any other mixture
will reduce freeze protection. This gives
protection against freezing down to –31 °F
(–35 °C). See section "Coolant". The use of
"recycled" antifreeze is not approved by
Volvo. Different types of antifreeze must
not be mixed.
•Volvo recommends using only genuine
Volvo antifreeze in your vehicle's radiator.
Your Volvo retailer stocks plenty of Volvo
engine coolant to help protect your vehicle
during cold weather.
•Try to keep the fuel tank well filled – this
prevents the formation of condensation in
the tank. In addition, in extremely cold
weather conditions it is worthwhile to add
fuel line de-icer before refueling.
•The viscosity of the engine oil is important.
Oil with low viscosity (thinner oil) improves
cold-weather starting as well as decreas-
ing fuel consumption while the engine is
warming up. For winter use, 5W-30 oil, par-
ticularly the synthetic type
1, is recom-
mended. Be sure to use good quality oil but
do not use cold-weather oil for hard drivingor in warm weather, see page 271 for more
information.
•The load placed on the battery is greater
during the winter since the windshield wip-
ers, lighting, etc. are used more often.
Moreover, the capacity of the battery
decreases as the temperature drops. In
very cold weather, a poorly charged bat-
tery can freeze and be damaged. It is there-
fore advisable to check the state of charge
more frequently and spray an anti-rust oil
on the battery posts.
•Volvo recommends the use of snow tires
on all four wheels for winter driving – see
the chapter "Wheels and tires."
•To prevent the washer fluid reservoir from
freezing, add washer solvents containing
antifreeze (see page 213 for the location of
the washer fluid reservoir). This is impor-
tant since dirt is often splashed on the
windshield during winter driving, requiring
the frequent use of the washers and wip-
ers. Volvo Washer Solvent should be dilu-
ted as follows: Down to 14 °F (–10 °C):
1 part washer solvent and 4 parts water
Down to 5 °F (–15 °C): 1 part washer sol-
vent and 3 parts water Down to 0 °F
(–18 °C): 1 part washer solvent and 2 parts
1Synthetic oil is not used when the oil is changed at the normal maintenance intervals except at owner request and at additional charge. Please consult your Volvo retailer.

06 Starting and driving
General information
06
138
water Down to –18 °F (–28 °C): 1 part
washer solvent and 1 part water.
•Use Volvo Teflon Lock Spray in the locks.
NOTE
Avoid using de-icing sprays as they can
cause damage to the locks.
Conserving electrical current
Keep the following in mind to help minimize
battery drain:
•When the engine is not running, avoid turn-
ing the ignition key to position II. Many
electrical systems (the audio system, the
optional navigation system, power win-
dows, etc) will function with the ignition key
in position I. This position reduces drain on
the battery.
•Please keep in mind that using systems,
accessories, etc that consume a great deal
of current when the engine is not running
could result in the battery being completely
drained.
•The optional 12 volt socket in the trunk
(certain models only) provides electrical
current even with the ignition switched off,
which drains the battery.
NOTE
•If the ignition is switched on, a warning
message will be displayed in the text
window in the instrument panel when
the battery charge is low.
•An energy conserving function
designed into the vehicle's electrical
system will switch off certain functions
or reduce the load on the battery by,
e.g., reducing the audio system's vol-
ume.
Before a long distance trip
It is always worthwhile to have your vehicle
checked at a trained and qualified Volvo serv-
ice technician before driving long distances.
Your trained and qualified Volvo service tech-
nician will also be able to supply you with
bulbs, fuses, spark plugs and wiper blades for
your use in the event that problems occur.
As a minimum, the following items should be
checked before any long trip:
•Check that engine runs smoothly and that
fuel consumption is normal.
•Check for fuel, oil, and fluid leakage
•Have the transmission oil level checked2.
•Check condition of drive belts.
•Check state of the battery's charge.
•Examine tires carefully (the spare tire as
well), and replace those that are worn.
Check tire pressures.
•The brakes, front wheel alignment, and
steering gear should be checked by your
Volvo retailer only.
•Check all lights, including high beams.
•Reflective warning triangles are legally
required in some states/provinces.
•Have a word with your Volvo retailer if you
intend to drive in countries where it may be
difficult to obtain the correct fuel.
•Consider your destination. If you will be
driving through an area where snow or ice
are likely to occur, consider snow tires.
2To prevent injury from contact with hot surfaces, do not inspect your vehicle's transmission fluid yourself. Have your vehicle's transmission fluid level inspected by a qualified Volvo service technician.

06 Starting and driving
Fuel requirements
06

139 Octane rating
Minimum octane
G028920
Typical pump octane label
Volvo recommends premium fuel for best per-
formance, but using 87 octane or above will not
affect engine reliability.
Volvo engines are designed to achieve rated
horsepower, torque, and fuel economy per-
formance using premium 91 octane fuel.
Demanding drivingIn demanding driving conditions, such as oper-
ating the vehicle in hot weather, towing a trailer,
or driving for extended periods at higher alti-
tudes than normal, it may be advisable to
switch to higher octane fuel (91 or higher) or to
change gasoline brands to fully utilize yourengine's capacity, and for the smoothest pos-
sible operation.
NOTE
When switching to higher octane fuel or
changing gasoline brands, it may be neces-
sary to fill the tank more than once before a
difference in engine operation is noticeable.
Fuel FormulationsDo not use gasoline that contains lead as a
knock inhibitor, and do not use lead additives.
Besides damaging the exhaust emission con-
trol systems on your vehicle, lead has been
strongly linked to certain forms of cancer.
Many fuels contain benzene as a solvent.
Unburned benzene has been strongly linked to
certain forms of cancer. If you live in an area
where you must fill your own gas tank, take
precautions. These may include:
•standing upwind away from the filler nozzle
while refueling
•refueling only at gas stations with vapor
recovery systems that fully seal the mouth
of the filler neck during refueling
•wearing neoprene gloves while handling a
fuel filler nozzle.
Use of AdditivesWith the exception of gas line antifreeze during
winter months, do not add solvents, thicken-
ers, or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse may damage your engine, and some
of these additives contain organically volatile
chemicals. Do not needlessly expose yourself
to these chemicals.
WARNING
Never carry a cell phone that is switched
on while refueling your vehicle. If the phone
rings, this may cause a spark that could
ignite gasoline fumes, resulting in fire and
injury.
WARNING
Carbon monoxide is a poisonous, colorless,
and odorless gas. It is present in all exhaust
gases. If you ever smell exhaust fumes
inside the vehicle, make sure the passenger
compartment is ventilated, and immediately
return the vehicle to a trained and qualified
Volvo service technician for correction.