Page 1:1 Instruments, switches and controls

Instruments, switches and controls

Page 1:1 Instruments, switches and controls
Page 1:2 Instruments
Page 1:3 Instruments
Page 1:4 Indicator and warning lamps
Page 1:5 Warning lamps
Page 1:6 Warning lamps
Page 1:7 Radio, cassette player, Electrically operated, antenna
Page 1:8 Headlamps, Direction indicators, Hazard warning lamps
Page 1:9 Windscreen wash/wipe, Ignition switch/Steering wheel lock
Page 1:10 Cruise control
Page 1:11 Rear foglamps, Front foglamps
Page 1:12 Heated rear windows, door mirrors and seats
Page 1:13 Parking brake, Cigar lighter, Ashtrays
Page 1:14 Electrically operated windows
Page 1:15 Heating, ventilation and air conditioning
Page 1:16 Heating and ventilation
Page 1:17 Warning lamps
Page 1:18 White page

Page 1:0 and Page 1:1 Instruments, switches and controls

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1 Vent 1:15
2 Headlamps and parkinglights 1:8

Direction indicators, main/dipped
beams and headlamps flash
Cruise control

4 Hazard warning lights 1:8
5 Combined instrument 1:2-1:6

Windscreen wash/wipe
headlamp wash/wipe

7 Vent 1:15
8 Heater and ventilation controls 1:15-1:17
9 Radio-cassette 1:7
10 Cigar lighter 1:13
11 Ashtray 1:13
12 Heated driver's seat 1:12
13 Heated passenger's seat 1:12
14 Parking brake (hand brake) 1:13
15 Rear fog lamps 1:11
16 Front fog lamps 1:11
17 Electrically operated antenna 1:7
18 Fuel cap cover 2:16
19 Horn -
20 Ignition and steering wheel lock 1:9
21 Electrically operated sun roof 2:3
22 Heated rear window/rear view mirrors 1:12
23 Bonnet release 2:15

Electrically operated window winders
Electrically operated rear window winders
Central locking
25 Electrically operated front seats 2:6

Page 1:2 Instruments

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Dashboard Klokken

1 Fuel gauge 7 Odometer
2 Clock adjustment 8 Tachometer
3 Clock 9 Instrument illumination
4 Speedometer
intensity adjustment knob
5 Trip meter 10 Temperatue gauge
6 Trip meter reset knob

Page 1:3 Instruments
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Fuel gauge

The fuel tank holds 80 litres. the red section indicates 9 litres


The clock is powered by the car's battery. To adjust, push in the knob
(2) and turn as required.

Trip meter

The trip meter is used to measure short trips. The digit at the
extreme right = 100 metres.
Push in knob to reset. If the figures on the trip meter are red, the trip
meter and the speedometer have been replaced. The mileage and the
date of replacement have been noticed in your Service booklet.


Indicates the engine speed in revolutions per minute.
The engine should not be operated in the red section nor driven at
above 6000 rpm

Instruments illumination intensity
adjustment knob

Turn clockwise - brighter
Turn anit-clockwise - dimmer

Temperature gauge

Indicates the temperature of the coolant in the engine. If the pointer
repeatedly enters the red section, the coolant level and fan belt tension
should be checked as soon as possible. See chapter 7.

Page 1:4 Indicator and warning lamps
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Controlelampjes Dashboard

1 Direction indicator, left 11 Headlamp main failure beams
2 Direction indicator, right 12 Brake circuit failure
3 Not connected 13 Parking brake
4 Not connected
14 Bulb failure warning lamp
5 ABS malfunction* 15 Insufficient washer fluid
6 Lights on If the lamp glows there is only about
7 SRS** ½-1 litre fluid in the washer reservoir.
8 Low oil pressure 16 4th speed disengaged
9 Battery charge failure 17 Seat belt reminder lamp
10 Not connected 18 Not connected
* Anti-lock brakes
** Air bag

Page 1:5 Warning lamps
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The warning lamps described on this page should never be on when driving

When the ignition is switched on, i.e., before the engine is started, all warning lights should come on the test the bulbs. If any warning lights stays on after the engine has started, the cause must be investigated immediately. (However, the parking brake reminder light will not go out until the parking brake is fully released.)

Battery charge failure

Battery charge failure
Brake circuit failure

Brake circuit failure
A warning light will glow if the alternator is not charging the battery;
if this happens while the engine is running, check the tension of the
alternator drive belt without delay.

If the light comes on while driving or when braking the fluid level is too low
Stop immediately and check the level of the brake fluid (see 7:4 for location)
If the level is under MIN in the whole reservoir: do not drive the car but have it towed to a workshop for checking and repair. If the level is under MIN on only one side of the reservoir: drive carefully to your Volvo workshop for checking.
Low oil pressure

Low oil pressure
Bulb failure warning lamp

Bulb failure warning lamp
If this lamp comes on when the engine is running, the oil pressure is too low. Switch off the engine immediately and check the oil level, see chapter 8
After hard driving, the lamp will come on occasionally when the engine is idling. This is normal provided it goes off when the engine speed is increased.

A light will come on if any of the following bulbs are defective:
Dipped beams
Tail lamps
Brake lights (the lamp glows when the brake pedal is depressed)
Check the fuse and bulb.
Should the warning lamp become on after defective outside bulb has been replaced, the corresponding bulb on the other side of the car should also be replaced.

Page 1:6 Warning lamps
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Anti-lock Braking System (ABS)

Anti-lock Braking System (ABS)
If the light comes on (or stay on once the vehicle has been started) the
SRS diagnostic system has detected a fault. Drive immediately to a Volvo dealer for an inspection of the system. See chapter 2 for more details.

ABS prevents wheel lock-up during severe braking conditions. If the warning lamp lights up there is a malfunction (the standard braking system will however function) and the vehicle should be driven to a Volvo workshop for inspection.
See 3:3 for more information about ABS.

Page 1:7 Radio, cassette player, Electrically operated antenna
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Radio    Electrically operated antenna

Radio, cassette player,
Electrically operated antenna
Your Volvo 780 is equipped with a radio,
cassette player and equalizer. Powerful in-
build speakers give you high quality sound. A
separate instruction manual for the radio,
cassette player and equalizer is in your
document wallet.
Your Volvo dealer will be pleased to assist
you if you have any questions about the
operation of your sound equipment.
Posistion A - The antenna extends when the
radio is turned on.
Position B - The antenna retracts or remains
retracted when the radio is off.
You can still listen to the cassette player
even when the antenna is fully retracted.

    Note: Always retract the antenna before
    driving into an automatic car wash or
    driving in any area with a low roof.

Page 1:8 Headlamps, Direction indicators, Hazard warning lamps

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Headlamps and parking lights

lights off All lights off
Parking lights

Parking lights on
Front and rear parking lights on
Do not use the parking lights when driving.

Headlamps and parking lightsIgnition at "0" all lights off. Ignition at I, II, or III headlamps, parking lights, numberplatelights and instruments illumination switched on. The headlamps should be used for night driving and when driving in poorly lit streets. All lights are extinguished when the engine is turned off and the light switch is at Headlights

Linkerzijde stuur

Direction indicators, main/dipped beams and headlamp flasher

Hazard warning lamps


Lane changing, overtaking
Light pressure upwards or downwards.
The lever will return to the neutral
position when released.


Headlamp flasher (headlamps off)
Pull the lever towards the steering wheel.
The main beams remain on until the lever
is released.

All exterior direction indicators flash when
the switch is actuated. Use this to inform
other road users of an obstruction or hazard
caused by your vehicle.
Regulations governing the use of the hazard
warning lamps vary from country to country.

Normal turns


Main beam/dipped beam switching
(headlamps off)

Pull the lever towards the steering wheel,
past the headlamp flash position, and
release it.
                    A blown direction indicator bulb will cause the indicator light to
                    flash more rapidly than usual.

Page 1:9 Windscreen wash/wipe, Ignition switch/Steering wheel lock
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Ignition switch/steering
Wheel lock

0 Lock position
The steering wheel is locked when the ignition key it withdrawn from the lock.

I Intermediate position "Radio"
Certain electrical components (e.g. heater fan cigar lighter, radio, headlamps, fueltank cap cover switch) can now be operated. The ignition system is switched off.

II Drive
Key position during driving.
Tail lights, numberplate lights and instrument illumination are all on.

III Start position
The starter motor is engaged. Release the key as soon as the engine starts. It automatically springs back to the engine-running position.

If the ignition key is difficult to turn, this is due tension in the steering column lock. Turn the steering slightly left and right to loosen.

Ignition switch/steering

Windscreen wash/wipe, headlamp wash/wipe


Intermittent wiping
Useful when driving in misty weather con-
ditions or light rain. The wipers will make a
single sweep every six seconds.

Windscreen wash/wipe and headlamp

The washers are operated in this position
and the windscreen wipers make 2 or 3
sweeps after the lever is released. The
headlamp washers operate at the same time
as the windscreen washers.


Single sweep
Slightly depress the lever. The wipers return
to the park position when the lever is
released. Especially useful in light rain.
3 Normal speed
4 High speed

Page 1:10 Cruise control

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Cruise control
The cruise control should not be used in
heavy traffic or when driving on wet or
slippery roads.
Note:When driving on hills the actual
vehicle speed my vary slightly from the set
cruise control speed.


The cruise control switches are located on
the direction indcator stalk.
To engage and set desired speed:
1 Set switch (B) to ON.
2 Accelerate to desired cruise speed.
   Note The cruise control cannot be engaged
   at speeds below 35 km/h.
3 Depress SET SPEED switch (A)

Reducing speed

Cruise control is automatically disengaged
when the brakes are applied. Previously
selected cruise speed is retained in the
memory and momentarily setting the
swith to RESUME position the speed will be


Momentary acceleration, such as for over-
taking, does not interrupt cruise control
operation. the previously selected speed will
be maintained without having to set switch to
If the cruise control is already engaged, the
cruising speed can be increased by depressing
the SET SPEED button (A). The vehicle will
then maintain the current speed.


Set the switch (B) to position OFF, or
depress the brake pedal.
Switching off the ignition will also
automatically disengage the cruise control

Page 1:11 Rear foglamps, Front foglamps
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Rear foglamp switch Front foglamp switch

Rear foglamps

The rear foglamps are considerly stronger
than the normal tail lights and should be used
when visibility is poor.

Front foglamps

Foglamps should be used when visibility is

                                      Note: Regulations governing the use of these
                                      lamps may vary from market to market.

Page 1:12 Heated rear windows, door mirrors and seats

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Heated rear window/door mirrors swith Front seats switch

Heated rear window
Heated door mirrors

Depress the switch to remove mist or frost
from the rear window and door mirrors
The heating circuits incorporate a timer
which cuts out the door mirror heating after
6 minutes and the rear window heating after
12 minutes. the orange lights in the swith
will go out when the heating stops. Pressing
the switch when the lights are on will also
switch off the heating.

Pressing the switch once again will restart
the cycle.
Do not place items against the inner surface
of the window that my damage the electrical
conductors. Do not use scapers, sharp
instruments or window cleaners containing
abrasives to clear the window.

Heated front seats

Switch on or off as required.
Whwn switched on the seats are automatically
heated and when the optimal temperature is
reached the heating automatically switches
The passenger seat will only be heated when
it is occupied.

Page 1:13 Parking brake, Cigar lighter, Ashtrays
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Parking brake Cigar lighter Rear seat Ashtray

Parking brake (handbrake)

The parking brake (lever between the front
seats) operates on the rear wheels. A dash-
board warning lamp comes on when the brake
is applied. Press button to release the brake,
lift lever slightly and ease down.
Note: The parking brake must always be used
when the vehicle is parked.

Cigar lighter

6-8 seconds after being pushed in, the lighter
will spring back ready for use.


Empty ashtays by pulling to the limit and
pressing down the tongue.

Page 1:14 Electrically operated windows
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                                          Left front

                                          Right front

Electrically operated window winders

The window winder switches (rocker type),
located in the armrests of the doors, (see
above), will only function when the ignition
is turned on (at position II). To lower the
window , press rear part; to raise, press front

Page 1:15 Heating, ventilation and air conditioning

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Electronic Climate Control

ECC Electronic Climate Control

Air vents

The climate unit functions automatically but
you can also operate the system manually if
you wish. The temperature inside the car is
automatically regulated with the help of two
sensors placed in different positions in the
car. One sensor is placed on top of the dash-
board where it "senses" the sun's rays and
the other sensor is placed on the courtesy
lightning fixture and "senses" the temperature
in the centre of the car.
Air conditioning gives you the opportunity of
having a comfortable temperature in the car
even if it is very hot outside. Be sure to
keep the windows and the sun roof closed.
The following two pages describe how the air
conditioning works and how you can get the
best use out of it.

A Open
B Closed
C Lateral adjustment
D Vertical adjustment

For added ventilation an adjustable air vent
is located just below the steering column.

Page 1:16 Heating and ventilation
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Mode selector


   0 = Off
   5 = Max speed
aut = Fan speed
        automatically regulated
Select mode as required
aut = normal mode
Set temperature disired
The dial is graduated
in Centigrade
or Fahrenheit.

Mode selector

Automatic = air distribution automatically

Automatic Air through panel vents

Automatic Defrost. Air to windscreen and
side windows.

Automatic Air through floor, windscreen
and side windows.

Automatic Air through floor vents.

Automatic Bi-level. Air through floor and
panel vents.Air supplies from
panel vents is slightly colder than air
released at foot level.

Electronic Climate Control

Automatic Automatic
Air in the car recirculates. Almost no fresh
air from outside. Will not function on de-
frost setting. Lamp is on when this function is engaged.

Air conditioning engaged.This is the nor-
mal position.

The lamp has two functions:
     air conditioning engaged
     fault in system

Page 1:17 Heating and ventilation

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Automatic setting

It doesn't matter if it is hot or
cold outside!

Just select aut and the desired temperature.
If you set the temperature3 at maximum
cooling or heating the fan operatus at the
fastest speed.

Optimum demist

Set at The air conditioning lamp
will also light up. Set the fan at 2 once the
mist has disappeared.

Additional information

Faulty air conditioning unit

  • The air conditioning compressor is only
    engaged if the temperature is above +5°C.
    . For use in heavy traffic, to prevent
    fumes from other vehicles entering the
    passenger compartment. Only to be used for
    10-15 minutes as air may become stale and
    windows could mist up.

    Note:The air conditioning system will prevent
    misting even in cold first weather, because the
    ambient air is first dehumidified.
    Use the air condtioning system regularly to
    ensure that it functions at its best.

    Note: If anything is placed over the sensor
    located on top of the dashboard on the
    passenger's side the climate unit will receive
    incorrect information.
  • The button has a lamp which indicates a fault
    in the unit.

    If the lamp begins to blink when the ignition
    is turned on there is a simple fault in the
    If the lamp continues blink for more than
    20 seconds there is a more serious fault.
    Contact your volvo workshop

    Page 1:18 White page

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    text en picture's from Owners manual Model year 1990

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