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2007 Volvo C70
corrosion that can be caused by salt residues.
l Clean leaves and twigs from air intake vents at the base of the windshie\
ld, and from other places where
they may collect.
NOTE
Complete service information for qualified technicians is available onli\
ne for purchase or subscription at
www.volvotechinfo.com.
188 09 Maintenance and servicing
Maintaining your vehicle
Emission inspection readiness
What is an Onboard Diagnostic System (OBD II)?
OBD II is part of your vehicle's computerized engine management system. \
It stores diagnostic
information about your vehicle's emission controls. It can light the Che\
ck Engine light (MIL) if it detects
an emission control "fault." A "fault" is a component or system that is \
not performing within an expected
range. A fault may be permanent or temporary. OBD II will store a messag\
e about any fault.
How Do States Use OBD II for Emission Inspections?
Many states connect a computer directly to a vehicle's OBD II system. Th\
e inspector can then read
"faults." In some states, this type of inspection has replaced the tailp\
ipe emission test.
How Can My Vehicle Fail OBD II Emission Inspection?
Your vehicle can fail OBD II emission inspection for any of the followin\
g reasons.
l If your Check Engine (MIL) light is lit, your vehicle may fail inspect\
ion.
l If your vehicle's Check Engine light was lit, but went out without any a\
ction 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.
l If you had recent service that required disconnecting the battery, OBD I\
I diagnostic information may be
incomplete and "not ready" for inspection. A vehicle that is not ready m\
ay fail inspection.
How Can I Prepare for My Next OBD II Emission Inspection?
l If your Check Engine (MIL) light is lit - or was lit but went out with\
out service, have your vehicle
diagnosed and, if necessary, serviced by a qualified Volvo technician.
l 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/highway driving is typ\
ically needed to allow OBD II to
reach readiness. Your Volvo retailer can provide you with more informati\
on on planning a trip.
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2007 Volvo C70
1. Cooling system expansion tank
2. Power steering fluid reservoir (concealed behind the headlight)
3. Dipstick - engine oil
4. Radiator
5. Cooling fan
6. Washer fluid reservoir
7. Engine oil filler cap
8. Brake/clutch fluid reservoir
9. Battery
10. Relay/fuse box
11. Air cleaner
WARNING
The cooling fan may start or continue to operate (for up to 6 minutes)\
after the engine has been switched
off.
191 09 Maintenance and servicing
Engine oil
Changing engine oil and oil filter
See
page 239 for oil specifications. Refer to the Warranty and Service Records Infor\
mation booklet for
information on the oil change intervals.
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2007 Volvo C70
196 09 Maintenance and servicing
Battery
Battery maintenance
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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 t\
he following in mind:
l Check the fluid level in each cell in the battery every 24 months or eve\
ry 15,0001 miles (24,000 km),
whichever is sooner. The fluid should be at the level shown in the illus\
trations above (A). Do not overfill.
l Use a screw driver to open the caps or cover and a flashlight to inspect\
the level.
l If necessary, add distilled water. The level should never be above the i\
ndicator (A).
l The fluid level should be checked if the battery has been recharged.
l After inspection, be sure the cap over each battery cell or the cover is\
securely in place.
l Check that the battery cables are correctly connected and properly tight\
ened.
l 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.
l The battery should be disconnected from the vehicle when a battery charg\
er is used directly on the
battery.
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2007 Volvo C70
1More frequently in warm climates.
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related accessories contain lead and lead \
compounds, chemicals known to
the state of California to cause cancer and reproductive harm. Wash hand\
s after handling.
197 09 Maintenance and servicing
Battery
Battery symbols
Battery replacement
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Removing the battery
1. Switch off the ignition and remove the key.
2. Wait at least 5 minutes after switching off the ignition before disco\
nnecting the battery so that all
information in the vehicle's electrical system can be stored in the cont\
rol modules.
3. Remove the cover over the battery.
4. Disconnect the battery negative (ground) cable.
5. Disconnect the positive cable.
6. Remove the front side of the battery box with a screwdriver.
7. Release the clamp holding the battery.
8. Lift out the battery.
Installing a new battery
1. Put the battery in place in the engine compartment.
2. Install the battery's retaining clamp.
3. Reinstall the front side of the battery box.
4. Connect the positive cable.
5. Connect the ground cable.
6. Reinstall the cover over the battery.
NOTE
Used batteries should be properly disposed of at a recycling station or \
similar facility, or taken to your
Volvo retailer.
WARNING
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l Never expose the battery to open flame or electric spark.
l Do not smoke near the battery.
l Battery fluid contains sulfuric acid. Do not allow battery fluid to cont\
act eyes, skin, fabrics or painted
surfaces. If contact occurs, flush the affected area immediately with wa\
ter. Obtain medical help
immediately if eyes are affected.
198 09 Maintenance and servicing
Bulbs
Bulbs used in the car
NOTE
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2007 Volvo C70
Charge air cooler (Intercooler)
Turbocharged engines employ a turbo-compressor to force air into the eng\
ine inlet manifold and a charge air cooler
to cool the compressed inlet air. The resulting increase in air flow rai\
ses pressure in the intake manifold and increases
engine power over that developed by the normally-aspirated engine. The c\
harge air cooler (which resembles a
radiator) is located between the turbo-compressor and inlet manifold.
Fuel system
The engine is equipped with a multiport fuel injection system.
242 11 Specifications
Electrical system
General information
12-volt system with voltage controlled generator. Single wire system in \
which the chassis and engine block are used
as conductors, grounded on the chassis.
Bulbs
Please refer to
page 198 for a list of the bulbs used in your car.
Battery
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