2011 VOLVO C70 engine overheat

04 Interior
Power retractable hard top
04

109
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.
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, acover for the vehicle is provided in the
trunk. see page 106 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 106) 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 108) until TOP MALFUNCTION
SERVICE REQUIRED 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.

06 Starting and driving
Starting the vehicle
06
148
WARNING
•Volvo's floor mats are specially manu-
factured for your car. They must be
firmly secured in the clips on the floor so
that they cannot slide and become trap-
ped under the pedals on the driver's
side.
•Always place the gear selector in Park
(P) and apply the parking brake before
leaving the vehicle. Never leave the
vehicle unattended with the engine run-
ning.
•Always open garage doors fully before
starting the engine inside a garage to
ensure adequate ventilation. The
exhaust gases contain carbon monox-
ide, which is invisible and odorless but
very poisonous.
CAUTION
Automatic transmission: The engine
should be idling when you move the gear
selector. Never accelerate until after you
feel the transmission engage! Accelerating
immediately after selecting a gear will cause
harsh engagement and premature trans-
mission wear. Selecting P or N when idling
at a standstill for prolonged periods of time
will help prevent overheating of the auto-
matic transmission fluid.

06 Starting and driving
Towing a trailer
06

163 General information
•Volvo recommends the use of Volvo trailer
hitches that are specially designed for the
vehicle.
Maximum trailer weights recommended by
Volvo are:
•Trailers without brakes: 1,540 lbs
(700 kg).
•Trailers with brakes: 2,000 lbs (900 kg)
Observe the legal requirements of the
state/province in which the vehicles are
registered.
•The maximum recommended hitch
tongue load is 165 lbs (75 kg).
•All Volvo models are equipped with
energy-absorbing shock-mounted bump-
ers. Trailer hitch installation should not
interfere with the proper operation of this
bumper system.
Trailer towing does not normally present any
particular problems, but take into considera-
tion:
•Increase tire pressure to recommended
full. See the chapter "Wheels and tires."
•When your vehicle is new, avoid towing
heavy trailers during the first 620 miles
(1,000 km).
•Maximum speed when towing a trailer:
50 mph (80 km/h).
•Engine and transmission are subject to
increased loads. Therefore, engine coolant
temperature should be closely watched
when driving in hot climates or hilly terrain.
Use a lower gear and turn off the air con-
ditioner if the temperature gauge needle
enters the red range.
•If the automatic transmission begins to
overheat, a message will be displayed in
the information display.
•Avoid overload and other abusive opera-
tion.
•Hauling a trailer affects handling, durabil-
ity, and economy.
•It is necessary to balance trailer brakes
with the towing vehicle brakes to provide a
safe stop (check and observe state/local
regulations).
•Do not connect the trailer's brake system
directly to the vehicle's brake system.
•More frequent vehicle maintenance is
required.
•Remove the ball and drawbar assembly
when the hitch is not being used.
•Volvo recommends the use of synthetic
engine oil when towing a trailer over long
distances or in mountainous areas.
WARNING
•Bumper-attached trailer hitches must
not be used on Volvos, nor should
safety chains be attached to the
bumper.
•Trailer hitches attaching to the vehicle's
rear axle must not be used.
•Never connect a trailer's hydraulic
brake system directly to the vehicle
brake system, nor a trailer's lighting
system directly to the vehicle lighting
system. Consult your nearest trained
and qualified Volvo service technician
for correct installation.
•When towing a trailer, the trailer's safety
wire must be correctly fastened to the
hole or hook provided in the trailer hitch
on the vehicle. The safety wire should
never be fastened to or wound around
the drawbar ball.

07 Wheels and tires
Tire Sealing System*
07
198* Option/accessory, for more information, see Introduction.
Replacing the sealing compound
container
The sealing compound container must be
replaced if:
•the tire sealing system has been used to
repair a tire
•the container’s expiration date has passed
(see the date on decal).
NOTE
•After use, the sealing compound bottle,
the hose, and certain other system
components must be replaced. Please
consult your Volvo retailer for replace-
ment parts.
•If the sealing compound bottle’s expi-
ration date has passed, please take it to
a Volvo retailer or a recycling station
that can properly dispose of harmful
substances.
Inflating tires
The tire sealing system can be used to inflate
the tires. To do so:
1. Park the car in a safe place.
2. The compressor should be switched off.
Ensure that the on/off switch is in posi-
tion 0 (the 0 side of the switch should be
pressed down).
3. Take out the electrical wire and hose.
4. Remove the valve cap from the tire’s infla-
tion valve and screw the hose connector
onto the valve as tightly as possible by
hand.
5. Connect the electrical wire to the nearest
12-volt socket in the vehicle.
6. Start the vehicle’s engine.
WARNING
•The vehicle’s engine should be running
when the tire sealing system is used to
avoid battery drain. Therefore, be sure
the vehicle is parked in a well ventilated
place, or outdoors, before using the sys-
tem.
•Children should never be left unattended
in the vehicle when the engine is running.
7. Check the tire’s inflation pressure on the
gauge. Switch off the compressor briefly to
get a clear reading from the pressure
gauge.
8. Refer to the tire inflation tables for the cor-
rect inflation pressure. If the tire needs to
be inflated, start the tire sealing system’s
compressor (press the on/off switch to
position I). If necessary, release air from the
tire by turning the air release knob coun-
terclockwise.
CAUTION
The compressor should not be used for
more than 10 minutes at a time to avoid
overheating.
9. Turn off the compressor (press the on/off
switch to position 0) when the correct infla-
tion pressure has been reached.
10. Unscrew the hose from the tire’s inflation
valve and reinstall the valve cap.
11. Disconnect the electrical wire from the
12-volt socket.

11 Specifications
Three-way catalytic converter
11
279 Three-way catalytic converter –
general information
•Keep your engine properly tuned. Certain
engine malfunctions, particularly involving
the electrical, fuel or distributor ignition
systems, may cause unusually high three-
way catalytic converter temperatures. Do
not continue to operate your vehicle if you
detect engine misfire, noticeable loss of
power or other unusual operating condi-
tions, such as engine overheating or back-
firing. A properly tuned engine will help
avoid malfunctions that could damage the
three-way catalytic converter.
•Do not park your vehicle over combustible
materials, such as grass or leaves, which
can come into contact with the hot exhaust
system and cause such materials to ignite
under certain wind and weather condi-
tions.
•Excessive starter cranking (in excess of
one minute), or an intermittently firing or
flooded engine can cause three-way cata-
lytic converter or exhaust system over-
heating.
•Remember that tampering or unauthorized
modifications to the engine, the Electronic
Control Module, or the vehicle may be ille-
gal and can cause three-way catalytic con-
verter or exhaust system overheating. This
includes: altering fuel injection settings or
components, altering emission systemcomponents or location, or removing com-
ponents, and/the repeated use of leaded
fuel.
NOTE
Unleaded fuel is required for vehicles with
three-way catalytic converters.