1998 VOLVO C70 catalytic converter

are all important considerations.
In production, Volvo has partly or completely phased out several chemicals including freons, lead chromates,
naphtanates, asbestos, mercury and cadmium; and reduced the amount of chemicals used in our plants 50% since 1991.
In use, Volvo was the first in the world to introduce into production a three-way catalytic converter with a Lambda
sond, now called oxygen sensor, in 1976. The current version of this highly efficient system reduces emissions of
harmful substances (CO, HC, NOx) from the exhaust pipe by approximately 95% and the search to eliminate the
remaining emissions continues. Volvo is the only automobile manufacturer to offer CFC-free retrofit kits for the air
conditioning system for all models back to the M/Y 1975 240. Advanced electronic engine controls, refined
purification systems and cleaner fuels are bringing us closer to our goal.
After Volvo cars and parts have fulfilled their use, recycling is the next critical step in completing the life cycle. The
metal content is about 75% of the total weight of the car, which makes the car among the most recycled industrial
products. In order to have efficient and well controlled recycling, many Volvo variants have printed dismantling
manuals indication the weight and material of individual components. For Volvo, all homogeneous plastic parts
weighing more than 1.7 oz. (50 grams)are marked with international symbols that indicate how the component is to be
sorted for recycling.
In addition to continuous environmental refinement of conventional gasoline-powered internal combustion engines,
Volvo is actively looking at advanced technology alternative-fuel vehicles.
When you drive a Volvo, you become our partner in the work to lessen the car's impact on the environment.
To reduce your vehicle's environmental impact, you can:
Maintain proper air pressure in your tires. Tests have shown decreased fuel economy with improperly inflated
tires
Follow the recommended maintenance schedule
Drive at a constant speed
See an authorized Volvo retailer as soon as possible for inspection if the check engine (malfunction indicator)
lamp illuminates, or stays on after the vehicle has started
Properly dispose of any vehicle related waste such as used motor oil, used batteries, brake pads, etc.
When cleaning your car, use Volvo's own car care products, all of which have systematically been adapted to
the environment.
Contents
Important
Before you operate your car for the first time, please familiarize yourself with the BREAK-IN information on
page 56. You should also be familiar with the information in the first three chapters of this manual.
Information contained in the balance of the manual is extremely useful and should be studied after operating
the vehicle for the first time.
This manual is structured so that it can be used for reference. It should thus be kept in the car for ready access.
Do not export your Volvo to another country before investigating the country's applicable safety and exhaust
emission requirements. In some cases it may be difficult or impossible to comply with these requirements.
Modifications to the emission control system(s) may render your Volvo not certifiable for legal operation in the
U.S., Canada or other countries.
All information, illustrations and specifications contained in this manual are based on the latest product information
available at the time of publication. Volvo reserves the right to make model changes at any time, or to change
specifications or design, without notice and without incurring obligation.
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Chapter 4 - Starting and driving
pg. 55 Starting and driving
Starting and driving

This section on starting and driving contains items such as starting the engine, operating the gear selector, towing,
trailers, etc.
Break-in period
56
Fuel requirements, Refueling56-57
Driving economy58
Starting the engine59
Manual transmission60
Automatic transmission61
Points to remember64
Emergency towing66
Vehicle towing information67
Jump starting68
Three-way catalytic converter69
Brake system, ABS70
Trailer towing71
Winter driving72
Long distance trips73
pg. 56 Break-in period, Fuel requirements
A new car should be broken -in

Refrain from utilizing your car's full driving potential during the first 1,200 miles (2,000 km) including the "kick -
down" function (automatic transmission).
NOTE - ENGINE OIL:
Although some oil consumption occurs during normal engine operation, more oil is consumed when the engine is new
as the internal parts generate higher friction while wearing-in to each other. From the time the engine is new until
the first service is performed, the oil consumption could be higher than normal. For this reason, it is especially
important to check the oil every time you refuel your car during this period. See page 114
.
In general, the rate of oil consumption depends on such factors as: engine temperature, length of trip, driving
conditions, oil viscosity and quality, engine speed and acceleration/deceleration.
Checking your engine oil level each time the car is refueled is one of the most important items you can perform to
help keep your car in good running order.
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Manual transmission
The following speeds should not be exceeded during the break-in period: Up to 600 miles
(1000 km)600 - 1,200 miles
(1000 - 2000 km)
1st gear 20 mph (30 km/h)25 mph (40 km/h)
2nd gear 30 mph (50 km/h)40 mph (70 km/h)
3rd gear 45 mph (80 km/h)65 mph (100 km/h)
4th gear 70 mph (110 km/h)80 mph (130 km/h)
5th gear/overdrive 80 mph (130 km/h)95 mph (150 km/h)
Posted speed limits should not be exceeded.
Deposit control gasoline (detergent additives)
Volvo recommends the use of gasoline containing deposit control additives. These additives have shown to be efficient
in keeping injectors and intake valves clean. Consistent use of deposit control gasolines will help ensure good
driveability and fuel economy. If you are not sure whether the gasoline contains deposit control additives, check with
the service station operator.
Unleaded Fuel
Each Volvo has a three-way catalytic converter and must use only unleaded gasoline. U.S. and Canadian regulations
require that pumps delivering unleaded gasoline be labeled "UNLEADED". Only these pumps have nozzles which fit
your car's filler inlet. It is unlawful to dispense leaded fuel into a vehicle labeled "unleaded gasoline only". Leaded
gasoline damages the three-way catalytic converter and the heated oxygen sensor system. Repeated use of leaded
gasoline will lessen the effectiveness of the emission control system and could result in loss of emission warranty
coverage. State and local vehicle inspection programs will make detection of misfueling easier, possibly resulting in
emission test failure for misfueled vehicles.
NOTE: Some U.S. and Canadian gasolines contain an octane enhancing additive called methyl-cyclopentadienyl
manganese tricarbonyl (MMT). If such fuels are used, your Emission Control System performance may be affected,
and the Malfunction Indicator Lamp located on your instrument panel may light. If this occurs, please return your
vehicle to an authorized Volvo retailer for service.
pg. 57 Fuel requirements, Refueling
Octane Rating

Volvo engines are designed for optimum performance on unleaded premium gasoline with an octane rating. AKI of 91,
or above. AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number, RON, and the Motor Octane
Number, MON, (RON + MON/ 2).
The minimum octane requirement is AKI 87 (RON 91).
Gasoline containing alcohol and ethers
"Oxygenated fuels"
Some fuel suppliers sell gasoline containing "oxygenates" which are usually alcohols or ethers. In some areas, state or
local laws require that the service pump be marked indicating use of alcohol or ethers. However, there are areas in
which the pumps are unmarked. If you are not sure whether there is alcohol or ethers in the gasoline you buy, check
with the service station operator.
To meet seasonal air quality restrictions, some states require the use of "oxygenated" fuel in certain areas.
Volvo allows the use of the following "oxygenated fuels; however, the octane ratings listed on this page must still be
met.
Alcohol — Ethanol
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Manual transmission fluidQuality: Volvo synthetic gearbox oil
1161423
Capacity: 2.2 US qts (2.1 liters)
Power steering fluid Quality: ATF Capacity: 0.85 US qts. (0.8 liters)
Brake fluid Quality: DOT 4+ Capacity: 0.64 US qts. (0.6 liters)
* Add 0.95 qts. (0.9 liters) if the oil cooler has been drained
All specifications are subject to change without notice.
pg. 125 Engine
Engine

Liquid-cooled gasoline, 5-cylinder, in-line engine. Aluminum alloy cylinder block with cast-iron cylinder liners cast
directly into block. Aluminum alloy cylinder head with double overhead camshafts and separate intake and outlet
channels.
Engine lubrication is provided by an eccentric pump driven from the crankshaft. Full-flow type oil filter. Exhaust
emission control accomplished by multiport fuel injection, heated oxygen sensor(s) and three-way catalytic converter.
Designation: Volvo B 5254 T
Output 190 hp at 5100 rpm (142 kw 85 rps)
Max torque 199 ft. lbs. at 1800 -4998 rpm (270 Nm/30 -83.3 rps)
Number of cylinders 5
Bore 3.27" (83 mm)
Stroke 3.54" (90 mm)
Displacement 2.4 liters
Compression ratio 9.0:1
Number of valves 20
Valve clearance Self -adjusting
Designation: Volvo B 5234 T3
Output 236 hp at 5100 rpm (176 kw/85 rps)
Max torque 243 ft. lbs. at 2700 -5100 rpm (330 Nm/45 -85 rps)
Number of cylinders 5
Bore 3.19" (81 mm)
Stroke 3.54" (90 mm)
Displacement 2.3 liters
Compression ratio 8.5:1
Number of valves 20
Valve clearance Self -adjusting
All specifications are subject to change without notice.

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pg. 188 Index
A
ABS........................................17Air conditioning...........................35Air mix....................................33Air vents..................................33Airbag (SIPS)...............................8Airbag (SRS)................................4Alarm......................................44Ambient temperature sensor.................25Anti -lock Brake System (ABS).........17, 19,70Ashtrays...................................31Audio systems
General information.....................184
SC-813..................................132 SC-816..................................145 SC-900..................................161Auto -dim (rear -view mirror)................48Automatic car washing.....................103Automatic daytime running lights...........24Automatic transmission...........61,62,63,127 Driving mode selector....................62Automatic transmission fluid..........117,124
B
Battery................................72,128Battery drain - avoiding...................54Battery maintenance.......................122Booster cushion............................11Brake failure warning light.............17,18Brake fluid...........................116,124Brake fluid warning light..................18Brake system...............................70Brake warning light........................17Break -in period............................56Bulb failure warning....................17,19Bulbs.....................................128Bulbs - replacing..........................85
C
Capacities................................127Catalytic converter........................69Central locking button.....................36Chains (snow)..............................77Changing a wheel...........................82Child booster cushion......................11Child Restraint Anchorages..................9Child safety...............................11Clock......................................16Clock - resetting..........................25Clutch fluid..............................116Coolant - checking/changing...............120Coolant level sensor.......................19Coolant level warning light................17Cooling system.........................64,126Courtesy lights - front....................49Cruise control.............................29
D
Daytime running lights..................20,24Demister - rear window.....................23Dimensions................................129Distributor ignition system...............126Doors and locks............................42Drive belt................................118Driving economy............................58
E
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SIPS........................................8Snow chains................................77Snow tires.................................77Spare tire..............................53,84Spark plugs...............................126Spark plugs - replacing...................110Specifications............................123SRS.....................................5,6,7SRS (airbag)................................4SRS diagnostic system......................19SRS warning light.....................5,17,19Starting the engine........................59Steering wheel adjustment..................32Steering wheel lock........................21Storage compartments.......................40Studded tires..............................77Sun roof................................23,41Supplemental Restraint System (SRS).........4
T
Tachometer.................................16Temperature gauge..........................16Temporary spare tire.......................84Three -way catalytic converter..............69Tire pressure..............................78Tires - changing...........................82Towing..................................66,67Towing a trailer...........................71Traction Control System (TRACS)......17,19,23Trailer towing.............................71Trip computer.....................23,26,27,28Trip odometer..............................16Trunk - opening/locking....................52Trunk light................................53Turn signals............................17,20
U
Uniform tire quality grading...............79Upholstery - cleaning.....................104
V
Vanity mirrors.............................49Vehicle Identification Number (VIN).......106Vehicle loading...........................127Volvo On Call.............................130
W
Warning flashers...........................23Warning lights..........................18,19Warranty..................................107Washer fluid level.........................17Washer fluid reservoir....................119Washing...................................102Waxing....................................103Weights...................................129Wheel changing..........................82,83Wheels and tires...........................76Windows - electrically-operated............36Windshield washer nozzles.................119Windshield washers/wipers..................21Windshield wiper blades - replacing........95Winter driving.............................72

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