Page 66 of 175

1998 Volvo S90
Chapter 4 (cont)
Automatic transmission
pg. 58
P(Park)
Use this position when
starting the engine or parking
the car.
Never use P while car is in
motion.
The transmission is
mechanically locked when in
position P. Also use the
parking brake when parking
on grades.
The gear selector is locked in
the P position (Shift lock). To
release the selector, start the
engine and depress the brake
pedal. See page 61 for
instructions on manually
releasing the gear selector. WARNING!
Never leave the car when
the engine is running. If, by
mistake, the gear selector is
moved from P the car may
start moving.
R(Reverse)
Never engage R while car is
moving forward.
N(Neutral)
Neutral position = no gear is
engaged.
Use parking brake. The
engine can be started with
the gear selector in this
position.
D(Drive)
D is the normal driving
position and should be used
as often as possible to help
improve fuel economy.
When modes E or S are
selected, upshift and
downshift of the forward
gears occur automatically
and are governed by
accelerator pedal position
and vehicle speed.
3 (Intermediate position)
Automatically shifts up and
down between first second
L (Low gear)
The gearbox does not upshift in
position L! Select position L if you
wish to drive in first or second gear
and you do not wish to shift up (when
driving in hilly terrain, for example, as
position L provides the best engine
braking power). The transmission will
conspicuously shift down from second
to first if road speed drops to below 25
or 20 mph (40 km/h or 30 km/h)
(engines B6304 and B6254
respectively) when driving in
Economy mode. When driving in
Sport mode, the same very noticeable
shift takes place if the speed drops to
below 6 mph (10 km/h).
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Page 69 of 175

1998 Volvo S90
Special Tips - automatic transmission
l For driving down steep hills and when driving
for prolonged periods at low speeds, position L
should be selected. Avoid, however, repeated
changes since this can cause overheating of the
transmission oil. For driving on long continuous
uphill gradients, select position 3.
l Do not hold the car stationary on an incline by
using the accelerator pedal. Instead, apply the
hand brake (parking brake). This prevents the
transmission oil from becoming overheated.
l When towing a trailer, select shift position 3.
l The (E)conomy mode should be selected when
the cruise control is engaged.
l Never select P or R while the car is in motion.
l When initially selecting positions D, 3, L or R,
your right foot should press firmly on the brake
pedal to ensure that the car is standing still with
the engine idling.
l The gear selector should not be downshifted to
L at speeds above 75 mph (125 km/h). Always
observe posted speed limits. Cooling system
The risk for overheating is greatest, especially in
hot weather, when:
l towing a trailer up steep inclines for prolonged
periods at wide open throttle and low engine rpm.
l stopping the engine suddenly after high speed
driving (so-called "after-boiling" can occur).
To avoid overheating, the following rules should
be followed:
l Reduce speed and downshift when towing a
trailer up long, steep inclines. The risk of
overheating can be reduced by switching off the
air conditioning system for a short time.
l Do not let the engine idle unnecessarily for
prolonged periods.
l Do not mount auxiliary lamps in front of the
grill.
When the risk of overheating is imminent, or in
the event of overheating, (the temperature gauge
goes repeatedly into, or stays continually in, the
red section) the following precautions should be
taken:
l Switch off the air conditioning system.
l Pull off the road, away from traffic, stop the car
and put the gear lever into neutral. Do not stop the
engine!
l Switch the heater to full (maximum) position.
Increase the engine speed to approx. 2000 rpm
(twice idling speed) until the temperature begins
to drop.
See "Coolant" to check and top-up the coolant
level if necessary.
WARNING! Do not remove coolant expansion
tank cap. The coolant will be extremely hot.
Points to remember pg. 61
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Page 88 of 175

1998 Volvo S90
Changing a wheel
On sedans the spare wheel, jack and toolbag are located in the trunk, be\
neath the carpet. The jack must be completely retracted to fit into the holder.
On wagons, the spare tire and the jack are located beneath the floor mat\
in the large storage bin. Always secure the spare tire and the jack to prevent them from rattling.
l Remove the wheel cap, using the screwdriver in the tool kit.
l With the car still on the ground, use the box wrench from the tool kit t\
o loosen the wheel nuts 1/2 - 1 turn. Turn the nuts counterclockwise to loosen.
NOTE:
To avoid excessive wear and the necessity of rebalancing, mark and reins\
tall wheels in same location and position as before removal. To lessen the chance of imbalance, each
wheel hub is equipped with a guide stud to ensure that a removed wheel c\
an be reinstalled in its original position (as when changing over to winter tires/wheels).
Wheel changing (cont.) pg. 79
WARNING!
l The jack attachment must engage the bar in the jack attachment (A). Th\
e car's weight must not rest on the jack's attachment (B).
l Be sure the jack is on a firm, level, non-slippery surface.
l Never allow any part of your body to be extended under a car supported b\
y a jack.
l Use the jack intended for the car when replacing a wheel. For any other \
job, use stands to support the end of the car being worked
on.
l Apply the parking brake, select position P (automatic transmission). \
l Block the wheels standing on the ground. Use rigid wooden blocks or larg\
e stones.
l The jack should be kept well-greased.
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Page 99 of 175

1998 Volvo S90
2 Audio, Power seats, Hazard warning flashers,
Compartment Lights,
Power Antenna, Trailer Power, 50
3 Power Supply Relay "A" 50
4 Fuel System Relay, Ignition System Relay 50
5ABS-unit 50
6 Air pump, Starter Solenoid, Horn 50
7 Electric Cooling Fan 50
8 Pos./parking Light Relay, Headlight Relay, Fog light
relay 50
*Some of the equipment/systems listed may be
available on certain models only and/or as optional
items only.
Brake system pg. 91
Relay/fuse box (Box B)
The fuses in the relay/fuse box generally protect the electrical compone\
nts in the engine compartment.
The fuses are located under the cover in the relay/fuse box. Undo the fo\
ur clamps and pull out the fuse
you want to check. Look at the fuse from the side to see if there is a b\
reak in the curved wire. Should you
need to replace a fuse, you will find spare fuses in the central fuse bo\
x in the passenger compartment.
Replace the blown fuse with a new one of the same amperage and color. Ne\
ver use a fuse with a higher
amperage! There are a pair of pliers, to help when replacing fuses, in t\
he central fuse box in the passenger
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Page 135 of 175
1998 Volvo S90
Electrical system
12 V, negative ground.
Voltage-controlled generator. Single-wire system
with chassis and engine used as conductors.
Battery
Voltage 12 V
Capacity 600 A/125 min
The battery contains corrosive and poisonous acids.
It is of the utmost importance that old batteries are
disposed of correctly. Your Volvo retailer can assist
you in this matter.
Generator
Rated output 1400 W (certain models: 1680 W)
max. current 120 Amp (certain models: 120 Amp)
Bulbs
Bulb Trade
No. Power
Socket No.
of
bulb
Headlights HBI/9004 65/45 W – 2
Parking
lights,
turn
signals,
front 1157 N.
A.
21/5
W/24/2.2 cp BAY
15
2
turn
signals,
rear 1156
21W/32cp BA
15s 2
Tail lights 2x67 5W/4cp BA
15s 2
Brake
light 1156
21 W/32cp BA
15s 2*
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