1996 VOLVO 850 overheating

1996 Volvo 850
Your car is equipped with a KEYLOCK system. When the engine is switched \
off, the gear selector must
be in the ( P )ark position before the starting key can be removed fro\
m the ignition switch.

5. Select desired gear. The gear engages after a slight delay (automati\
c transmission) which is especially
noticeable when selecting R.
CAUTION: (Automatic transmission only) The engine should be idling; ne\
ver accelerate until after
you feel the gear engage! Too rapid acceleration immediately after selec\
ting a gear will cause harsh
engagement and premature transmission wear.

NOTE: Selecting P or N (automatic transmission) when idling at a stand\
still for prolonged periods of
time will help prevent overheating of transmission oil.
WARNING! Always place the gear selector (automatic transmission) in Pa\
rk and apply the parking
brake before leaving the vehicle. Never leave the car unattended with th\
e engine running.
Always open the garage doors fully before starting the engine inside a g\
arage to ensure adequate
ventilation. The exhaust gases contain carbon monoxide, which is invisib\
le and odorless but very
poisonous.
TURBO 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!

Hydraulic valve lifters

This engine features hydraulic valve lifters which means that valve clea\
rance is adjusted automatically.
It is possible that the valve lifters will produce a ticking sound for t\
he first few seconds after the engine
is started, while the oil pressure is increasing.
If the car has not been used for a long period of time, this ticking sou\
nd may last for up to 15 minutes.
This is entirely normal.
Do not exceed 300 rpm until the ticking sound disappears.



file:///K|/ownersdocs/1996/1996_850/96850_401.htm (7 of 8)12/30/2006 9\
:59:32 AMClassic Cars & Cycles www.ClassicCycles.org

1996 Volvo 850
pg. 4:9 Automatic transmission
Special Tips - automatic transmission

l For driving down steep hills and when driving for prolonged periods at l\
ow speeds, position L should
be selected. Avoid, however, repeated changes since this can cause overh\
eating of the transmission oil.
For driving on long continuous uphill gradients, select position 3.
l See caution on page 4:7.
l Do not hold the car stationary on an incline by using the accelerator pe\
dal. Instead, apply the hand
brake (parking brake). This prevents the transmission oil from becomin\
g overheated.
l When towing a trailer, select shift position 3.
l The (E)conomy mode should be selected when the cruise control is engag\
ed.
l While towing a trailer in hilly terrain, do not drive continuously at en\
gine speeds above 4500 rpm to
help avoid high engine oil temperatures.
pg. 4:10 Points to remember
Cooling system

The risk for engine overheating is greatest, especially in hot weather, \
when:
l towing a trailer up steep inclines for prolonged periods at wide open th\
rottle and low engine rpm.
l stopping the engine suddenly after high speed driving (so-called "after\
-boiling" can occur).
l To avoid overheating, the following rules should be followed:
l Do not drive for prolonged periods at engine speeds above 4500 rpm if yo\
u are towing a trailer in
hilly terrain.
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 followin\
g precautions should be taken:
l Switch off the air conditioning system.
l 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 spee\
d to approx. 2000 rpm (twice
idling speed) until the temperature begins to drop.

file:///K|/ownersdocs/1996/1996_850/96850_406.htm (7 of 10)12/30/2006 \
9:59:34 AMClassic Cars & Cycles www.ClassicCycles.org

1996 Volvo 850
WARNING!
l To reduce the possibility of explosion, never expose battery to open fla\
me or electric spark.
l Do not smoke near battery.
l Batteries generate hydrogen gas which is flammable and explosive.
l Battery fluid contains sulfuric acid. Do not allow battery fluid to cont\
act eyes, skin, fabrics or
painted surfaces. If contact occurs, flush affected area immediately wit\
h water. Obtain medical
attention immediately if eyes are affected.
Failure to follow the instructions for jump starting can lead to persona\
l injury.
pg. 4:15 Three-way catalytic converter

Three-way catalytic converter cautions

l Keep your engine properly tuned. Certain engine malfunctions, particular\
ly involving the electrical,
fuel or distributor ignition systems, may cause unusually high three-way\
catalytic converter
temperatures. Do not continue to operate your vehicle if you detect engi\
ne misfire, noticeable loss of
power or other unusual operating conditions, such as engine overheating \
or backfiring. A properly tuned
engine will help avoid malfunction that could damage the three-way catal\
ytic converter.
l Do not park your car over combustible materials, such as grass or leaves\
, which can come into contact
with the hot exhaust system and cause such materials to ignite under cer\
tain wind and weather
conditions.
l Excessive starter cranking (in excess of one minute), with an intermit\
tently firing or flooded engine,
file:///K|/ownersdocs/1996/1996_850/96850_412.htm (4 of 10)12/30/2006 \
9:59:35 AMClassic Cars & Cycles www.ClassicCycles.org

1996 Volvo 850
can cause three-way catalytic converter or exhaust system overheating.
l Remember that tampering or unauthorized modification to the engine or th\
e vehicle may be illegal
and can cause three-way catalytic converter or exhaust system overheatin\
g. This includes:
- Altering fuel injection settings or components.
- Adjusting distributor ignition timing beyond specified limits.
- Altering emission system components or location or removing components\

- Repeated use of leaded fuel.

NOTE: Unleaded fuel is required for cars with three-way catalytic conver\
ters. A label on the instrument
panel and inside fuel tank filler door will remind owners and filling st\
ation attendants of this
requirement.

Important! It is unlawful to dispense leaded fuel into any vehicle label\
ed "unleaded gasoline only".
pg. 4:16 Brake system


Anti-lock Brake System (ABS)

If the warning lamp lights up there is a malfunction of the ABS system (\
the standard braking system will
however function) and the vehicle should be driven to a Volvo retailer \
for inspection. The Anti-lock
Braking System (ABS) helps to improve vehicle control (stopping and s\
teering) during severe braking
conditions by limiting brake lock-up. When the system "senses" impending\
lock-up, braking pressure is
automatically modulated in order to help prevent lockup, which could lea\
d to a skid.
The system performs a self-diagnostic test when the vehicle first reache\
s a speed of approximately 12
mph (20 km/h). The brake pedal will pulsate several times and a sound \
may be audible from the ABS
control module. This is normal.
To obtain optimal effect from the ABS system, constant pressure should b\
e kept on the brake pedal
while the system is modulating the brakes. Do not pump the brake pedal. \

The switching of the ABS modulator will be audible and the brake pedal w\
ill pulsate at this time. Please
be aware that ABS does not increase the absolute braking potential of th\
e vehicle. While control will be
enhanced, ABS will not shorten stopping distances on slippery surfaces. \

file:///K|/ownersdocs/1996/1996_850/96850_412.htm (5 of 10)12/30/2006 \
9:59:35 AMClassic Cars & Cycles www.ClassicCycles.org

1996 Volvo 850
pg. 4:17 Trailer towing
When preparing for trailer towing, observe the following:

l Volvo recommends the use of Volvo trailer hitches which are specially de\
signed for the car. For
trailer weights exceeding 2000 lbs. (908 kg), use only a trailer hitch\
offered as a Genuine Volvo
accessory.

NOTE: Models with automatic transmission are equipped with a transmissio\
n oil cooler as standard
equipment. This cooler helps prevent overheating of the transmission dur\
ing times of increased load, as
when towing a trailer.

l Maximum trailer weight recommended by Volvo is:
Trailers without brakes : 1100 lbs (500kg)
Trailers with brakes: 2" (50 mm) ball - 3300 lbs (1500 kg), 1 7/8" (\
47 mm) ball - 2000 lbs (908 kg).

Observe the legal requirements of the state/province in which the vehicl\
es are registered. All Volvo
models are equipped with energy-absorbing shock-mounted bumpers. Trailer\
hitch installation should
not interfere with the proper operation of this bumper system.

Trailer towing does not normally present any particular problems, but ta\
ke into consideration:
l Increase tire pressure to recommended full. See section "Wheels and tire\
s".
l Recommended hitch tongue load is 110 (50 kgs) for trailer weights belo\
w 2,650 lbs (1,200 kgs) and
165 lbs (75 kgs) for trailer weights above 2,650 lbs (1,200 kgs). Fo\
r trailer weights between 2,650-3,300
lbs (1,200-1,500 kgs) a top speed of 50 mph (80 km/h) should never b\
e exceeded.
l Engine and transmission are subject to increased loads. Therefore, engin\
e coolant temperature should
be closely watched when driving in hot climates or hilly terrain. Use lo\
wer gear and turn off air
conditioner if temperature gauge pointer enters the red range.
l Avoid overload and other abusive operation.
l Hauling a trailer affects handling, durability, and economy.
l It is necessary to balance trailer brakes with the towing vehicle brakes\
to provide a safe stop (check
and observe State/Local regulations).
l Do not connect the trailer's brake system directly to the vehicle's brak\
e system.
l More frequent vehicle maintenance is required.
l Remove the ball and drawbar assembly when the hitch is not being used.
l Volvo recommends the use of synthetic engine oil when towing a trailer o\
ver long distances or in
file:///K|/ownersdocs/1996/1996_850/96850_412.htm (7 of 10)12/30/2006 \
9:59:35 AMClassic Cars & Cycles www.ClassicCycles.org