1987 Volvo 780
1 9 8 7
VOLVO
780
Contents
A comprehensive index is located at the back of this manual.
Introduction
Instruments and controls
Body and interior
Starting and driving
Wheels and tires
In case of emergency
Car care
Service and routine
maintenance
Specifications
Index
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.
pg. 2 Introduction
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1987 Volvo 780
This Owner's manual provides information on driving and maintaining your Volvo
It should be noted that there are certain differences among model versions and market requirements;
thus, you may find features described and/or pictured in this manual that do not appear on your car.
Should you require more detailed information with regard to adjustments or repairs please contact your
Volvo dealer.
Do not export your Volvo to another country before investigating that 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, and other countries.
pg. 3 Keys
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The key number codes are stamped on a separate tag supplied with the keys. This tag should be
separated from the key ring and kept in a safe place.
The back of the tag is coated with adhesive tape.
In the event the original keys are lost, duplicates may be ordered from your Volvo dealer.
The central locking system is described in detail in section "Door and locks".
Top of Page
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1 9 8 7
VOLVO
780
Instruments and controls
pg. 4 Instruments, Switches and controls
The pages in this section provide a detailed description of the vehicle's instruments and controls.
Note that vehicles may be equipped differently, depending on special legal requirements, etc.
pg. 5 Instruments, Switches and controls
1 Air louver
19
2 Headlights, parking lights
13
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3 Turn signals, Cruise Control
12,
14
4 Hazard warning flashers
12
5 Instruments
6
6 Wiper/washer
13
7 Air louvers
19
8 Heating and ventilation
19
9 Audio cassette/tuner
21
10 Cigarette lighter
16
11 Ash tray
16
12 Electrically-heated driver's seat
17
13 Electrically-heated passenger seat
17
14 Parking brake
16
15 Rear fog lamps
15
16 Fog lights
15
17 Space for additional equipment 18 Fuel cap cover
37
19 Horn 20 Starting switch/steering wheel lock
11
21 Electrically operated sun roof
25
22 Rear window/rear view mirror
demister
17
23 Hood release handle
35
24 Electrically operated windows
18
24 Electrically operated rear view mirrors
24
25 Electrically operated front seats
26
pg. 6 Instruments
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NOTE: Canadian model speedometers/odometers indicate kilometers only.
1 Voltmeter
2 Fuel gauge
3 Clock reset knob
4 Quartz crystal clock
5 Speedometer
6 Trip odometer
7 Trip odometer reset knob
8 Odometer
9 Tachometer
10 Instrument panel lamps rheostat
11 Coolant temperature gauge
12 Oil temperature gauge
pg. 7 Instruments
Quartz crystal clock
To reset the hands, push in the reset knob and turn.
Tachometer
Reads thousands of engine rpm. Engine should not be operated in red range.
Trip odometer
Used for measuring shorter distances. (last figure represents 1/10 mile or km)
Trip odometer reset knob
Push in to reset
Coolant temperature gauge
The pointer should be approximately midway on the gauge face when driving. If the pointer approaches
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the red range repeatedly, check coolant level and fan belt tension. See sections "Coolant" and "Drive
belts".
WARNING!
Allow engine to cool before adding
coolant.
If the pointer stays in the red range, do not drive the car. Call Road Assistance.
Fuel gauge
The fuel tank capacity is approx. 15.8 US gals (60 liters).
The red range represents approx. 2.4 US gals. (9 liters). See "Refueling" For further information
Instrument panel lamps rheostat
Clockwise = brighter.
Counterclockwise = dimmer.
Oil temperature gauge
This instrument shows the engine oil temperature which varies with the ambient temperature, rpm, load
and speed.
Normal oil temperature: 140-250°F.
The sender is installed in the oil sump drain plug hole.
Voltmeter
The voltmeter indicates the voltage in the electrical system and thereby also the state of the battery.
While the car is being driven the pointer should be within the black field. Should the pointer point to the
upper or lower red field when driving, this may indicate some fault in the electrical system.
pg. 8 Indicator and warning lights
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1 Turn signal, left
2 Turn signal, right
3 (Not connected)
4 (Not connected)
5 ABS malfunction, see pg. 10
6 Service reminder light
see pg. 10
7 SRS (Supplemental Restraint System),
see pg. 30
8 Low engine oil pressure
9 Alternator not charging
10 (Not connected)
11 High beams
12 Brake failure
13 Parking brake applied
14 Bulb failure
15 Low washer fluid level.
If the lamp glows continuously when the engine is running, there is only about 1/2 - 1 US qts. remaining
in the washer fluid reservoir.
16 4th gear disengaged
17 Fasten seat belts
18 (Not connected)
pg. 9 Warning lights
The warning lights described on this page should never be on when driving
When the ignition key is turned on, and before the engine starts, all of the warning lights should be on to
test the function of the bulbs. Should a light not go off after the engine has started, the system indicated
should be inspected. however, the parking brake reminder light will not go off until the parking brake is
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fully released.
Alternator warning light
If the light comes on while the engine is running, check the tension of the alternator drive belt as soon as
possible.
NOTE: This warning light is illuminated if the alternator is not charging. However, parking brake,
brake failure and bulb failure warning lights will be illuminated at the same time due to the design of the
system.
Brake failure warning light
If the light comes on while driving and the brake pedal can be depressed further than normal, it is an
indication that one of the brake circuits is not functioning.
Stop immediately, open hood and check brake fluid level, see section "Brake fluid, power steering".
Fluid level below MIN mark: do NOT drive. Tow car to shop for check/repair of brake system.
Oil pressure warning light
If the light comes on during driving, the oil pressure is too low. Stop the car and then stop the engine
immediately. Do not drive the car.
After hard driving, the light will come on occasionally when the engine is idling. This is normal,
provided it goes off when the engine speed is increased.
Parking brake reminder light
This light will be on when the parking brake (hand brake) is applied. The parking brake lever is situated
between the front seats.
Bulb failure warning light
The light will come on if any of the following bulbs are defective:
one of the low beam headlights
one of the tail lights
one of the brake lights when the brake pedal is depressed.
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Check the fuse and bulb.
See sections titled "Replacing bulbs" and "Fuses".
Should the warning light come on after a defective outside bulb has been replaced, the corresponding
bulb on the other side-of the car should also be replaced.
pg. 10 Warning lights, Car alarm
Anti-lock Brake System (ABS)
The Anti-lock Braking System (ABS) is designed to improve vehicle control (i.e. stopping and steering)
during severe braking conditions by limiting wheel lock-up. When the system "senses" impending wheel
lock-up, braking pressure is automatically modulated in order to help prevent lock-up, which could lead
to a skid.
While the system is modulating braking pressure, the driver may detect a pulsation of the brake pedal.
The on/off switching of ABS modulator may also be audible. This is normal.
Please be aware that ABS does not increase the absolute braking potential of the vehicle. Thus, while
control will be enhanced, ABS will not shorten stopping distances on slippery surfaces.
Service reminder light
This light will come on at 5000 mile (8000 km) intervals. It is a reminder to the driver to have the engine
oil changed. The light will stay on for two min. after start until reset by the servicing dealer.
Car alarm
Activation
The alarm is activated either manually or automatically via a mode selector on the electronic control
unit. In AUTO mode the alarm is activated 30 sec. after the ignition has been turned off and the last door/
lid shut. It is then deactivated by inserting the key in the ignition switch and turning it to the Drive II or
Starting III position. (In the automatic mode, the alarm has a 30 second delay prior to sounding.) In
MANUAL mode the alarm is activated when the code key is placed against the sensor in the window.
An indicator light flashes when the alarm is activated.
Alarm functions
The alarm is set off at once if any door, hood or lid is opened and also by vibration. The indicator light is
lit continuously and shows that the alarm has been set off.
Deactivation
The alarm is turned off by putting the code key against the sensor in the window. The indicator light is
then turned off.
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If the code key is lost, please call Volvo On Call for information.
pg. 11 Ignition switch
Starting (ignition) switch/steering wheel lock
The steering wheel lock might be under tension when the car is parked. Turn the steering wheel slightly
to free the ignition key.
A chime will sound if the starting key is left in the ignition lock and the front door on the driver's side is
opened.
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pg. 12 Turn signals, Hazard warning flasher
Turn signals
1 Lane change position. In maneuvers such as lane changing, the driver can flash the turn signals by
moving the turn signal lever to the first stop and holding it there. The lever will return to the neutral
position when released.
2 Signal lever engaged for normal turns.
NOTE: Defective turn signal bulb will cause turn signal indicator and remaining signal lights to flash
more rapidly than normal.
3 High beam/low beam switch (headlights on).
Move the lever towards the steering wheel past the headlight flasher position and release it.
3 Headlight flasher (headlights off).
Move the lever towards the steering wheel. The headlight high beam will be on until the lever is
released.
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Hazard warning flasher
The four-way flasher should be used to indicate that the vehicle has become a traffic hazard.
NOTE: Regulations regarding the use of the hazard warning flasher may vary from state to state.
pg. 13 Windshield, wipers/washers, Lighting
Wiper/washer
1 Intermittent wiper.
With switch in this position, the wipers will sweep approximately every seventh second.
2 "Single sweep" position.
Switch returns automatically when released.
3 Wipers, low speed.
4 Wipers, high speed.
5 Windshield wiper/washer.
The wiper will make 2-3 complete sweeps after the lever is released.
Headlights and parking light
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All lights off
Parking lights on
Headlights and parking lights are on if starting (ignition) switch is in position I or II.
If the headlight switch is in position all lights will go out when starting switch is switched off.
With the headlight switch in position the parking lights will stay on.
Switch from high to low beams, and vice versa, by moving the turn signal switch lever on the left side of
the steering column towards the steering wheel.
pg. 14 Cruise control
Cruise control
The cruise control switches are located on the turn signal switch lever.
To engage and set desired speed:
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1. Set switch (B) to ON.
2. Accelerate to desired cruise speed.
NOTE: The cruise control cannot be engaged at speeds below 22 mph (35 km/h).
3. Depress SET SPEED switch (A).
Operating brake pedal
This will automatically disengage the cruise control. Previously selected cruise speed is retained in the
memory and by momentarily setting the switch to RESUME position that speed will be re-engaged.
NOTE:
The vehicle will accelerate very quickly should there be a substantial speed differential when the switch
is reset to RESUME. It is therefore recommended that the vehicle be accelerated manually and the
switch reset to RESUME once the speed differential has been reduced.
Acceleration
Momentary acceleration, such as for passing, does not interrupt cruise control operation. The previously
selected speed will be maintained without having to set switch to RESUME.
To disengage the cruise control system:
Set switch (B) to position OFF, or depress brake pedal, or depress clutch pedal.
Switching off the starting (ignition) switch is will automatically disengage the cruise control system.
WARNING!
The cruise control should not be used in heavy traffic or when driving on wet or slippery roads.
If the gear shift is moved to Neutral while the cruise control is engaged, then depress the brake pedal
momentarily, or set the cruise control switch (B) to OFF. This will disengage the cruise control and
prevent overreving the engine.
NOTE: When driving on a grade, actual vehicle speed may vary slightly from the set cruise control
speed.
pg. 15 Rear fog lamps, Front fog lamps
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Rear fog lamps
The rear fog lights are considerably brighter than the normal tail lights and should be used only when
atmospheric conditions, such as fog, rain, snow, smoke or dust reduce the daytime or nighttime visibility
of other vehicle to less than 500 ft. (152 meters). The headlights must be switched on.
Note that local regulations governing the use of these lights may vary.
Auxiliary front fog lamps
Auxiliary front fog lights can be switched on only with the low-beam headlights on.
pg. 16 Parking brake, Cigarette lighter, Ash trays
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Parking brake (hand brake)
The lever is situated between the front seats. The brake is applied to the rear wheels. Always use the
parking brake (hand brake) when parking. On hills, also turn the front wheels toward the curb.
In order to obtain the best possible performance of the parking brake, the brake linings should be broken
in. See section titled "Brake system".
Cigarette lighter
To operate, depress the knob fully. When the knob automatically releases, the cigarette lighter is ready
for use.
The starting (ignition) switch must he switched on (to position I or II) for the cigarette lighter to
function.
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Ash trays
To remove the ash trays depress the center spring and remove.
pg. 17 Rear window demister, Heated front seats
Rear window demister
Heated side-view mirrors
Depress the switch to start heating of rear window and side mirrors. Both orange control lights in the
switch will light.
A timer switches off the side mirror heating after approx. 6 minutes and the rear window demister after
12 minutes or when the ignition key is switched off.
The control lights go out correspondingly.
Depressing the switch while any control light is on will disengage all heating.
Depressing the switch after the control lights Have gone out will restart the heating cycle.
CAUTION: Do not place items that may damage the printed circuit against the inner surface of the rear
window.
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Heated front seats
The heated front seats can be switched on or off as required. When switched on, the seats are heated
until the optimal temperature is reached, at which time the heating switches off automatically.
The passenger seat is only heated when occupied.
pg. 18 Electrically operated windows
Electrically-operated windows
The electrically operated windows are controlled by switches from the driver's armrest as shown in the
above illustration. The starting (ignition) switch must be ON (position II) for the electrically operated
windows to function. The window is lowered if the rear part of the switch is pressed and raised if the
front part of the switch is pressed.
WARNING!
Remove the ignition key when children are left unattended in the
vehicle.
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pg. 19 Heating and ventilation
Heating and ventilation
Your Volvo is equipped with Automatic climate control.
Depending on which function you select, warm or cool/cold air is distributed to the different
compartment.
An additional driver's air louver is located beneath the steering column and can be adjusted upwards,
downwards, or closed as desired.
Air louvers (dash)
A Open
B Closed
C Directing air flow horizontally
D Directing air flow vertically
A certain amount of air will always enter through the dash air louvers as long as they are open,
regardless of the position of the air distribution control.
Close the dash air louvers to obtain maximum air flow to floor or windshield.
pg. 20 Heating and ventilation
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pg. 21 Audio Cassette/Tuner controls and indicators
Operating instructions
For complete operating instructions, maintenance guidelines, and specifications, please consult your
Audio Cassette/Tuner Instruction Booklet. The Booklet also contains information on radio reception and
the radio antenna.
pg. 22
Contents | Top of Page
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1 9 8 7
VOLVO
780
Body and interior
pg. 23 Body and interior
Body and interior
The seats, seat belts, doors, etc. are described on the following pages.
Rear-view/side-view mirrors
24
Interior light, sun roof
25
Front seats
26
Child safety
27
Seat belts
28
Supplemental Restraint System (SRS)
30
Doors and locks
32
Trunk, long load storage
33
Hood
35
Passenger compartment, storage spaces
36
Filling Fuel
37
pg. 24 Rear-view/side-view mirrors, Make-up mirror
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Rear-view mirror
A Normal position
B Night position, reduces glare from following headlights
WARNING!
The mirrors should always he adjusted prior to
driving.
Side-view mirrors
The control switches are located in the driver's door armrest.
A Adjustment sideways
B Adjustment up/down
Note:
The mirrors are electrically-heated (see "Rear window demister")
CAUTION:
Never use ice scrapers made of metal as they can easily scratch the mirror surface.
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Make-up mirror
The make-up mirror is located on the right-side sun visor.
Make-up mirror lighting:
A OFF
B ON
pg. 25 Interior light, Moon roof
Interior light
1 Light always on.
2 Light always off.
3 Light is on when either of the front doors are opened.
A time delay-device for the interior light illuminated for approx. 7 seconds after closing the driver's
door.
Reading lights, rear seats
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There are two adjustable reading lights for rear seat passengers. The lights are turned on and off by the
switches on the rear arm rests.
Moon roof
The moon roof is operated electrically by a switch on the dashboard - the ignition key must be turned to
position II. Once you release the switch the moon roof locks into position. To close the moon roof
depress the opposite side of the switch.
The roof can be closed manually, see section "Troubleshooting".
Sun shade
The moon roof is supplied with a manually adjustable sun shade.
Note: Do not slide the sun shade further back than the front edge of the moon roof.
pg. 26 Front seats
Electrically operated front seats
The front seats are electrically operated.
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Using the switches on the sides of the seats you can adjust:
- the height of the seat(rear)
- the height of the seat (front)
- the forward-backward movement
- the backrest tilt
WARNING!
Do not adjust seat while driving.
To gain access to the rear seats - fold the backrests forward
Depress the large button on the side of the backrest to fold it forward. To activate the seat's forward backward function depress the switch on the underside of the button. The seat will move forward as long
as the switch is depressed and the backrest is folded forward.
To return the seat to its original position, fold the backrest up, depress the switch and hold it until the
seat has returned to its original position.
The STOP button cuts out the other controls. This is a safety feature to prevent accidental movement of
the seat, eg. when children are left unattended in the vehicle.
See section "Service diagnosis".
pg. 27 Child safety
Child safety
Volvo recommends the proper use of restraint systems for all occupants including children. Remember
that, regardless of age and size, a child should always be properly restrained in a car.
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Holding a child in your arms is NOT a suitable substitute for a child restraint system. In an accident, a
child held in a person's arms can be crushed between the vehicle's interior and an unrestrained person.
The child could also be injured by striking the interior, or by being ejected from the vehicle during a
sudden maneuver or impact. The same can happen if an infant or child rides unrestrained on the seat.
Other occupants should also be properly restrained to help reduce the chance of injuring or increasing
the injury of a child.
All states and provinces have legislation governing how and where children should be carried in a car.
Find out the regulations existing in your state or province.
A child restraint system can help protect a child in a vehicle. Here's what to look for when selecting a
child restraint system:
● It should have a label certifying that it meets applicable Federal Motor Vehicle Safety Standards
(FMVSS 213-80) or in Canada, CMVSS 213.
● Make sure the child restraint system is appropriate for the child's height, weight and development -
the label required by the standard or regulation or instructions for infant restraints typically provide this
information.
● In using any child restraint system, we urge you to carefully look over the instructions that are
provided with the restraint. Be sure you understand them and can use the device properly and
safely in this vehicle.
● If your child restraint requires a top tether strap, consult your authorized Volvo dealer for top tether
anchorage and installation information (sedan models only).
When a child has outgrown the child safety seat (approximately age 4-5 years, depending on size) you
should use the rear seat with the standard seat belt fastened. The best way to protect the child here is to
place the child on a cushion so that the seat/lap belt is properly located on the hip.
A specially designed and tested safety cushion for this purpose can be obtained from your Volvo dealer.
pg. 28 Seat belts
Seat Belts
Fasten the seat belts whenever you drive or ride.
Two lights will be illuminated for 4-8 seconds after the ignition key is turned to the driving position.
One light is located in the instrument panel and one in the console between the front seats.
A chime will sound at the same time if the driver has not fastened his seat belt. The front seats and the
rear outboard seats are provided with self-retracting inertia-reel belts.
To buckle:
Pull the belt out from both retractors far enough to insert the latch plate into the receptacle (buckle for
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rear seats), until a distinct snapping sound is heard.
The seat belt retractors are normally "unlocked" and you can move freely, provided that the shoulder
belt is not pulled out too far.
The retractors will lock up as follows:
● if belt is pulled out rapidly
● during braking and acceleration
● if the vehicle is leaning excessively
● when driving in turns
In order for the seat belt to provide maximum protection in the event of an accident, it must be worn
correctly. When wearing remember:
● the belt should not be twisted or turned
● the lap belt must be positioned low (not pressing against the abdomen). Make sure that the shoulder
belt is rolled up into its retractor and that the shoulder and lap belts are taut.
Lap portion of the belt should sit low
A special safety feature is the belt tensioner. In the event of a collision the tensioners are designed to
automatically and immediately tighten the front seat belts and therefore help protect the occupant from
being thrown forward.
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WARNING!
Devices used to induce slack into the shoulder belt portion of the three-point belt system will have a
detrimental effect on the amount of protection available to you in the event of a collision.
pg. 29 Seat belts
Center-rear belt adjustment
The center-rear seat belt is manually adjustable.
It should always be adjusted to fit snugly across the lap.
To Unfasten
Depress red pushbutton in receptacle (buckle) and let the belts rewind into their retractors.
Maintenance
Check periodically that the anchor bolts are secure and that the belts are in good condition.
Use water and a mild detergent for cleaning.
Check seat belt mechanism function as follows:
Attach the seal belt. Pull rapidly on the strap.
WARNING!
Check other traffic before performing the following
check.
Brake firmly from approximately 30 mph (50 km/h) or turn in a tight circle while pulling on the belt.
In both of the above checks you should not be able to pull the belt out.
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WARNING!
Never use a seat belt for more than one occupant.
Never wear the shoulder portion of the belt under the arm or otherwise out of position.
Such use could cause injury in event of accident.
Seat belts lose much of their strength when exposed to violent stretching, they should be replaced
after any collision, even though they may appear to be undamaged. Both front seat belts must be
replaced, even if only one of the belts was in use, because the belt tensioners are no longer operative.
Never repair the belt on your own. This should be done by an authorized Volvo dealer only.
During pregnancy
Pregnant women should always wear seat belts. Remember that the belt should always be positioned in
such a way as to avoid any possible pressure on the abdomen. The lap portion of the belt should be
located low, as shown in the above illustration.
NOTE: Legislation in your state or province may mandate seat belt usage.
pg. 30 Supplemental Restraint System
As an enhancement to the three-point seat belt system, your Volvo 780 is equipped with a Supplemental
Restraint System (SRS). The Volvo SRS consists of a driver's side airbag with a driver's side knee
bolster and automatic seatbelt pretensioners for both front seats. The system is designed to supplement
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