fuel VOLVO C70 2001 User Guide

Better driving economy may be obtained by thinking ahead, avoiding rapid starts and stops and adjusting the speed of
your vehicle to immediate traffic conditions. Observe the following rules:
· Bring the engine to normal operating temperature as soon as possible by driving with a light foot on the accelerator
pedal for the first few minutes of operation. A cold engine uses more fuel and is subject to increased wear.
· Whenever possible, avoid using the car for driving short distances. This does not allow the engine to reach normal
operating temperature.
· Drive carefully and avoid rapid acceleration and hard braking.
· Do not exceed speed limit.
· Avoid carrying unnecessary items (extra load) in the car.
· Maintain correct tire pressure. Check tire pressure regularly (check when tires are cold).
· Remove snow tires when threat of snow or ice has ended.
· Note that roof racks, ski racks, etc., increase air resistance and thereby fuel consumption.
· Avoid using automatic transmission kickdown feature unless necessary.
· Avoid using the air conditioning when it is not required. When engaged, the air conditioner's compressor places an
additional load on the engine. However, please note that fuel consumption is lower with the air conditioning on than it
is when driving with the air conditioning switched off and the windows down.
· If your car is equipped with the optional Trip Computer, utilizing the fuel consumption modes can help you "learn"
how to drive more economically.
Other factors which decrease gas mileage are:
· Worn or dirty spark plugs
· Incorrect spark plug gap
· Dirty air cleaner
· Dirty engine oil and clogged oil filter
· Dragging brakes
· Incorrect front end alignment
Some of the above mentioned items and others are checked at the standard Maintenance Service intervals.
NOTE: (D)rive or 5th gear (manual transmissions) should be used as often as possible to help improve fuel economy.
pg. 59 Starting the engine
Starting and stopping
ProCarManuals.com

CAUTION:
Never race the engine immediately after starting. Oil flow may not reach some lubricating points fast enough to
prevent engine damage.
Do not race the engine just prior to switching off!
pg. 60 Manual transmission
Shift positions
Depress the clutch pedal completely when changing gears*.
Remove your foot from the clutch pedal while driving.
Overdrive (5th gear) should be used as often as possible to help improve fuel economy. This gear can be engaged at
speeds above approx. 50 mph (80 km/h).
CAUTION: Follow the shift pattern indicated on the gear shift knob when shifting up (e.g., do not shift directly from
2nd to 5th gear) to help avoid excessive wear on the transmission.
Engaging reverse gear
The gear lever must first be moved to neutral in order to engage reverse gear.
ProCarManuals.com

D (Drive)
D is the normal driving position and should be used as often as possible to help improve fuel economy. The car should
not be moving when shifting from R to the D position.
Neutral control
When the engine is idling, the gear selector is in the Drive position and the brake pedal is depressed, the
transmission will automatically switch to neutral.
The transmission will automatically return to Drive when the brake pedal is released.
This function has been added to help reduce emissions.
4 (Intermediate gear)
The transmission will shift automatically between gears 4, 3, 2 or 1 from this position.
The transmission cannot shift up to (D)rive from fourth gear.
3 (Intermediate gear)
The transmission will shift automatically between gears 3, 2 and 1 from this position.
The transmission cannot shift up to fourth gear or (D)rive from third gear.
L (Low gears)
The transmission is locked in gears 1 and 2 when the selector is in this position.
NOTE:
· Gears 4, 3, or L can be used if you are driving in a mountainous area, towing a trailer or to increase engine braking
effect.
· The transmission has a built-in limiter designed to help prevent excessive engine speeds (high rpm) when gears 4, 3
or L are selected.
Automatic transmission - adaptive system
The automatic transmission is controlled by an adaptive guidance system that constantly monitors the way in which the
transmission functions. It senses and adapts each gear shift for optimal performance. The system also monitors your
particular driving style and adapts gear shifting accordingly.

ProCarManuals.com

pg. 76 Wheels and tires
Checking and correcting tire pressure
· Check the tire pressure when refuelling.
· The tire pressure should be corrected only when the tires are cold.
· With warm tires, correct only when the pressure is too low. The tire temperature rises after driving just a few miles.
Vehicle loading
The tires on your Volvo will perform to specifications at all normal loads when inflated as recommended on the tire
information label* located on the rear facing edge of the passenger's door. This label lists both tire and vehicle design
limits.
Do not load your car beyond the load limits indicated.
*Please note that the tire information label indicates pressure for both comfort and fuel economy.
pg. 77 Wheels and tires
Uniform tire quality grading
ALL PASSENGER CAR TIRES MUST CONFORM TO FEDER-AL SAFETY REQUIREMENTS IN
ADDITION TO THESE GRADES
Quality grades can be found, where applicable, on the tire sidewall between the tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions
on a specified government test course. For example, a tire graded 150 would wear one and one half (1 1/2) times as
well on the government course as a tire graded 100. The relative performance of tires depends upon the actual
ProCarManuals.com

WARNING!
· The jack's attachment must engage the bar in the jack attachment (A). The car's weight must not rest on the jack
attachment (B).
· Be sure the jack is on a firm, level, non-slippery surface.
· Never allow any part of your body to be extended under a car supported by a jack.
· Use the jack intended for the car when replacing a wheel. For any other job, use stands to support the side of the
car being worked on. -
· Apply the parking brake, select position P (automatic transmission) or Reverse gear (manual transmission).
· Block the wheels standing on the ground, use rigid wooden blocks or large stones.
· The jack should be kept well-greased.
CAUTION : Correct tightening torque on wheel bolts must be observed. The wheel bolts should never be greased or
lubricated. The extended, chromed wheel bolts must not be used with steel rims, as they make it impossible to fit the
hub caps.
Correct tightening order for wheel bolts
pg. 82 Spare tire
Temporary Spare (certain models)
The spare tire in your car is called a "Temporary Spare". It has the following designation: T125/90R15.
Recommended tire pressure (see decal on fuel filler flap) should be maintained irrespective of which position on the
car the Temporary Spare tire is used on.
In the event of damage to this tire, a new one can be purchased from your Volvo retailer.
CAUTION: The car must not be driven with wheels of different dimensions or with a spare tire other than the one that
ProCarManuals.com

2 0 0 1
VOLVO C70
Chapter 8 - Volvo Service
pg. 103 Volvo Service
Service an investment
An investment which will pay dividends in the form of improved reliability, durability and resale value. Label information
104
Maintenance service, Warranty105
Maintenance schedule106-107
Servicing108-109
Fuel/emissions systems110
Lubrication111
Engine oil112-113
Power steering fluid, Brake/clutch system fluid reservoir114
Windshield washer nozzle, Washer fluid reservoir115
Coolant116
Engine compartment117
Battery maintenance118
PROPOSITION 65 WARNING118
pg. 104 Label information
1 Vehicle Emission Control Information
Your Volvo is designed to meet all applicable emission standards, as evidenced by the certification label on the
underside of the hood. For further information regarding these regulations, please consult your Volvo retailer.
2 Vacuum hose routing
ProCarManuals.com

(thousand km)(12)(24)(36) (48)(60) (72)(84)(96)(108) (120) (132)(144)
EMISSION SYSTEM MAINTENANCE
Engine
Fuel line filter
1
PCV nipple (orifice)/hoses, clean I I
Battery (check charge and electrolyte level) II II II I I I II I
Brakes
Inspect brake pads, replace components as necessary I II II I I I II I
Brake fluid level
2 - check
I I I I I I
Steering/suspension
Tires
3, check pressure, wear and condition I
I II II I I I II I
Check power steering fluid level I I I I I I
Body
Power antenna (clean) L L L L L L
Trunk/hood, hinges and latches L L L L
Cabin air filter (see page 109)
R R R R R R
1) Replace at 105,000 miles (168,000 km)
2) Brake fluid should be changed at owner request every second year or 30,000 miles (48,000 km). The fluid
should be replaced once a year or every 15,000 miles (24,000 km) when driving under extremely hard
conditions (mountain driving, etc.).
3) Rotate tires at owner request.
The following items should be checked weekly by the driver (it takes only a few minutes):
Engine oil level, brake fluid level, radiator coolant level, operation of all lights, horns, windshield wipers, tire
pressure (all five tires), windshield washer fluid level
The following should also be carried out at regular intervals:
Washing (check all drain holes), polishing, cleaning
pg. 108 Servicing
Hoisting the car
If a garage jack is used to lift the car, the two jack attachments points should be used. They are specially reinforced to
bear the weight of the car. A garage jack can also be placed under the front of the engine support frame and under the
reinforced plate in the spare wheel well. Take care not to damage the splash guard under the engine. Ensure that the
jack is positioned so that the car cannot slide off it. Always use axle stands or similar structures.
ProCarManuals.com

If a twopost hoist is used to lift the car, the front lift arm pads should be positioned under the rear engine frame
mounts. The rear lift arm pads should be positioned under the rear supporting arm bracket.
CAUTION: Certain models have reduced ground clearance due to the design of the front spoiler. Please observe
caution when driving the car onto a garage hoist.
pg. 109 Servicing
Air cleaner
Replace the air cleaner cartridge with a new one every 30,000 miles (48,000 km). The cartridge should be replaced
more often when driving under dirty and dusty conditions. The filter cannot be cleaned and therefore should always be
replaced with a new one.
Timing belt
For proper functioning of the vehicle and its emission control systems, the timing belt and tensioner must be replaced
every 105,000 miles (168,000 km). Engine damage will occur if the belt fails.
Fuel system cap, tank and lines and connections
The effectiveness of the fuel system to contain hydrocarbons is dependent largely on a leakfree system. Check for
proper sealing of the fuel filler cap which contains "O" ring type seals.
NOTE: If the fuel filler cap is not closed tightly or if the engine is running when the car is refueled, the Malfunction
Indicator Lamp ("Check Engine") may indicate a fault. However, your vehicle's performance will not be affected. Use
only Volvo original or approved fuel filler caps.
Fuel (line) filter
For proper functioning of the vehicle and its emission control systems, the fuel line filter should be replaced at 105,000
miles (168,000 km). The filter is replaced as one complete unit. Replace more frequently if contaminated fuel is
introduced into the tank (or if there is reason to suspect that this has occurred).
PCV system
The orifice nipple in the intake manifold and the filter at the end of the PCV hose in the air cleaner should be
ProCarManuals.com

inspected at 60,000 miles (96,000 km) and thereafter, at 30,000 mile (48,000 km) intervals.
Cabin air filter
Replace the cabin air filter with a new one at 15,000 mile (24,000 km) intervals. Volvo recommends replacing the
filter more often if the car is driven under dirty and dusty conditions. The filter cannot be cleaned and therefore should
always be replaced with a new one.
pg. 110 Fuel/emissions systems
Fuel system
The fuel system is allelectronic and is microprocessorcontrolled. It can continually compensate for variation in engine
load, speed and temperature to give the best economy and power. A mass air flow sensor measures the inducted air. In
this way the system can make instantaneous adjustments for changes in air temperature or density, thus always
assuring the best economy with the lowest possible exhaust emissions.
Heated oxygen sensor
This is an emission control system designed to reduce emissions and improve fuel economy. The heated oxygen sensor
monitors the composition of the exhaust gases leaving the engine. The exhaust gas analysis is fed into an electronic
module. This adjusts the airfuel ratio to provide optimum conditions for combustion and efficient reduction of the three
major pollutants (hydrocarbons, carbon monoxide and oxides of nitrogen (NOx) by a threeway catalytic converter.
Crankcase ventilation
The engine is provided with positive crankcase ventilation which prevents crankcase gases from being released into the
atmosphere. Instead, the crankcase gases are admitted to the intake manifold and cylinders.
Evaporative control system
The car is equipped with an evaporative control system which prevents gasoline vapor from being released into the
atmosphere.
The system consists of a fuel tank with filler pipe and cap, a rollover valve, a Fill Limit Vent Valve (FLVV), vapor
vent lines, a charcoal canister, a purge line, a purge control valve and engine connections .
In addition, there is a pressure sensor connected to the fuel tank and a filter -protected Canister Close Valve (CCV) on
the atmospheric side of the canister, for system diagnosis.
The gasoline vapor is channeled through the rollover valve and the FLVV via the vapor vent lines into the charcoal
ProCarManuals.com

canister, where it is stored. When the engine is started, the gasoline vapor is drawn from the charcoal canister to the
engine's air intake system and into the combustion process.
NOTE:
· If the fuel filler cap is not closed tightly or if the engine is running when the car is refueled, the Malfunction Indicator
Lamp may indicate a fault.
· During a transitional period, a small number of service stations may still have fuel nozzles that are not compatible
with the fuel filler neck on cars equipped with the evaporative control system (ORVR) mandated by the U.S.
Environmental Protection Agency and the California Air Resources Board. If you experience difficulties in refueling
your vehicle, please ask the gas station attendant for assistance.
CAUTION:
Fuel must not be siphoned from the fuel tank. This will damage the Evaporative control system.
pg. 111 Lubrication
No.Lubrication point lubricant
1 Hood lock and latch Oil
2 Door stop and hinges Oil
3 Sun roof wind deflector (visible when sun roof is open) Oil, low temperature grease
4 Door lock catch plate Oil
5 Power antenna WD 40 or similar
6 Locks Volvo teflon lock spray
7 Trunk lock catch plate Low temperature grease
8 Front seat side rail and latch Oil
To avoid rattles and unnecessary wear, the body should be lubricated at regular service intervals. This should be done
by an authorized Volvo retailer.

ProCarManuals.com