engine coolant SUBARU LEGACY 2016 6.G Owners Manual

&Temperature gauge
1) Normal operating range
The temperature gauge shows engine
coolant temperature when the ignition
switch is in the“ON”position.
The coolant temperature will vary in
accordance with the outside temperature
and driving conditions.
We recommend that you drive moderately
until the pointer of the temperature gauge
reaches near the middle of the range.
Engine operation is optimum with the
engine coolant at this temperature range
and high revving operation when the
engine is not warmed up enough should
be avoided.
CAUTION
If the pointer exceeds the normal
operating range, safely stop the
vehicle as soon as possible.
Refer to“Engine overheating”F9-
13.
&ECO gauge
1) U.S. spec. models
2) Except U.S. spec. models
The ECO gauge shows the difference
between the average rate of fuel con-
sumption since the trip meter was last
reset and the current rate of fuel con-
sumption.
The ECO gauge indicates the current fuelefficiency as shown in the following chart.
Displayed unitNeedle position
“+”side“-”side
MPG Better Poorer
l/100km PoorerBetter
NOTE
.The ECO gauge shows only an
approximate indication.
.After resetting the trip meter, the
average rate of fuel consumption is not
shown until driving 0.6 mile (1 km).
Until that time, the ECO gauge does not
operate.
Instruments and controls/Meters and gauges3-11

Automatic climate control
system (type B)
NOTE
.Operate the automatic climate con-
trol system when the engine is running.
.The blower fan rotates at a low
speed when the engine coolant tem-
perature is low.
.For efficient defogging or dehumidi-
fying in cold weather, press the“A/C”
button.
When the automatic climate control mode
is selected, the following items are auto-
matically controlled.
.Outlet air temperature
.Fan speed
.Airflow distribution
.Air inlet control
.Air conditioner compressor operation
To activate this mode, perform the follow-
ing procedure.
1. Set the preferred temperature using
the temperature control button.
2. Press the“AUTO”button. The FULL
AUTO mode is selected and the“FULL
AUTO”indicator light on the display
illuminates.
NOTE
If you operate any of the buttons on the
control panel other than the“OFF”
button, rear window defogger button
and temperature control buttons during
FULL AUTO mode operation, the
“FULL”indicator light on the control
panel will turn off and the“AUTO”
indicator light will remain illuminated.
You can then manually control the
system as desired. To change the
system back to the FULL AUTO mode,
press the“AUTO”button.
To turn off the climate control system,
press the“OFF”button. The air inlet
selection is then automatically switched
to the outside air mode.&Temperature sensors
1) Solar sensor
2) Interior air temperature sensor
The automatic climate control system
employs several sensors. These sensors
are delicate. If they are treated incorrectly
Climate control/Automatic climate control system (type B)
–CONTINUED–4-5

CAUTION
Trapping small animals in the cool-
ing fan and belts of the engine may
result in a malfunction. Check that
no small animal enters the engine
compartment and under the vehicle
before starting the engine.
NOTE
Engine oil, engine coolant, brake fluid,
washer fluid and other fluid levels
should be checked daily, weekly or at
fuel stops.
Starting and stopping the
engine (models without
push-button ignition switch)
&Starting engine
CAUTION
Do not operate the starter motor
continuously for more than 10 sec-
onds. If the engine fails to start after
operating the starter for 5 to 10
seconds, wait for 10 seconds or
more before trying again.
NOTE
It may be difficult to start the engine
when the battery has been discon-
nected and reconnected (for mainte-
nance or other purposes). This diffi-
culty is caused by the electronically
controlled throttle’s self-diagnosis
function. To overcome it, keep the
ignition switch in the“ON”position
for approximately 10 seconds before
starting the engine.!General precautions when starting
engine
WARNING
.Never start the engine from out-
side the vehicle (except when
using the remote engine start
system). It may result in an
accident.
.Do not leave the engine running
in locations with poor ventilation,
such as a garage and indoors.
The exhaust gas may enter the
vehicle or indoors, and it may
result in carbon monoxide poi-
soning.
.Do not start the engine near dry
foliage, paper, or other flam-
mable substances. The exhaust
pipe and exhaust emissions can
create a fire hazard at high
temperatures.
CAUTION
.If the engine is stopped during
driving, the catalyst may over-
heat and burn.
.When starting the engine, be sure
to sit in the driver’s seat (except
Starting and operating/Starting and stopping the engine (models without push–button ignition switch)
–CONTINUED–7-9

Continuously variable trans-
mission
The continuously variable transmission is
electronically controlled and provides an
infinite number of forward speeds and 1
reverse speed. It also has a manual mode.
WARNING
Do not shift from the“P”or“N”
position into the“D”or“R”position
while depressing the accelerator
pedal. This may cause the vehicle
to lurch forward or backward.
CAUTION
.Shift into the“P”or“R”position
only after the vehicle is comple-
tely stopped. Shifting while the
vehicle is moving may cause
damage to the transmission.
.Do not race the engine for more
than 5 seconds in any position
except the“N”or“P”position
when the brake is applied or
when chocks are used in the
wheels. This may cause the
transmission fluid to overheat.
.Do not shift from the“D”positioninto the“R”position or vice
versa until the vehicle has com-
pletely stopped. Such shifting
may cause damage to the trans-
mission.
.When parking the vehicle, first
securely apply the parking brake
and then place the select lever in
the“P”position. Do not park for
a long time with the select lever
in any other position as doing so
could result in a dead battery.
NOTE
.When the engine coolant tempera-
ture is still low, the transmission will
upshift to higher engine speeds than
when the coolant temperature is suffi-
ciently high in order to shorten the
warm-up time and improve driveability.
The gearshift timing will automatically
shift to the normal timing after the
engine has warmed up.
.Immediately after transmission fluid
is replaced, you may feel that the
transmission operation is somewhat
unusual. This results from invalidation
of data which the on-board computer
has collected and stored in memory to
allow the transmission to shift at the
most appropriate times for the currentcondition of your vehicle. Optimized
shifting will be restored as the vehicle
continues to be driven for a while.
.When driving under continuous hea-
vy load conditions such as towing a
camper or climbing a long, steep hill,
the engine speed or the vehicle speed
may automatically be reduced. This is
not a malfunction. This phenomenon
results from the engine control func-
tion maintaining the cooling perfor-
mance of the vehicle. The engine and
vehicle speed will return to a normal
speed when the engine is able to
maintain the optimum cooling perfor-
mance after the heavy load decreases.
Driving under a heavy load must be
performed with extreme care. Do not
try to pass a vehicle in front when
driving on an uphill slope while towing.
.The continuously variable transmis-
sion is a chain type system that
provides superior transmission effi-
ciency for maximum fuel economy. At
times, depending on varying driving
conditions, a chain operating noise
may be heard that is characteristic of
this type of system.
Starting and operating/Continuously variable transmission
–CONTINUED–7-25

.Hill descent control function:
Using the hill descent control function, you
can keep the vehicle at a consistent speed
driving downhill. If the vehicle speed is
likely to increase, the brake control system
will be activated to adjust the vehicle
speed.
.Driving ability control:
This mode increases the hill-climbing
ability and driving ability as well as
enabling smooth application of torque for
easier control of the steering wheel.
&To activate/deactivate the X-
mode
X-mode switch
X-mode indicator
To activate:
Press the X-mode switch. While the X-
mode is activated, the X-mode indicator
appears.
To deactivate:
Press the X-mode switch again. The X-
mode indicator will disappear when the X-
mode is deactivated.
NOTE
.Even if you try to activate the X-
mode by pressing the X-mode switch
when the vehicle speed is 12 mph (20
km/h) or more, the X-mode will not be
activated. At this time, a buzzer will
sound twice.
.If the vehicle speed reaches 25 mph(40 km/h) or more while the X-mode is
activated, a buzzer will sound once and
the X-mode will be deactivated.
.While the engine is running, if either
of the following conditions is met, the
X-mode will be deactivated. In this
case, it is not possible to activate the
X-mode.
–The CHECK ENGINE warning
light/malfunction indicator light illu-
minates.
–The AT OIL TEMP warning light
flashes.
–The ABS warning light illumi-
nates.
–The Vehicle Dynamics Control
warning light illuminates.
.If there is a possibility that the
engine could overheat because of a
temperature increase of the engine
coolant, it is not possible to activate
the X-mode. Even while the X-mode is
activated, the X-mode will be deacti-
vated when the engine coolant tem-
perature increases.
&Hill descent control function
The hill descent control function will be in
standby mode when the X-mode is acti-
vated and the vehicle speed is less than
approximately 12 mph (20 km/h).
Starting and operating/X–mode (Outback CVT models)
–CONTINUED–7-39

Engine overheating
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has fully cooled down.
When the engine is hot, the coolant
is under pressure. Removing the
cap while the engine is still hot
could release a spray of boiling hot
coolant, which could burn you very
seriously.
If the engine overheats, pull off the road
safely and stop the vehicle in a safe place.
&If steam is coming from the
engine compartment
Turn off the engine and get everyone
away from the vehicle until it cools down.
&If no steam is coming from
the engine compartment
NOTE
For details about how to check the
coolant level or how to add coolant,
refer to“Engine coolant”F11-14.
1. Keep the engine running at idling
speed.2. Open the hood to ventilate the engine
compartment. Refer to“Engine hood”
F11-7.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off
the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If the temperature gauge stays in the
overheated zone, turn off the engine.
4. After the engine has fully cooled down,
check the coolant level in the reserve
tank.
If the coolant level is below the“LOW”
mark, add coolant up to the“FULL”mark.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant.
If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the
radiator cap, then turn the cap counter-
clockwise slowly without pressing down
until it stops. Release the pressure from
the radiator. After the pressure has been
fully released, remove the cap by pressing
down and turning it.
Towing
WARNING
Never tow AWD vehicles with the
front wheels raised off the ground
while the rear wheels are on the
ground, or with the rear wheels
raised off the ground while the front
wheels are on the ground. This will
cause the vehicle to spin away due
to the operation or deterioration of
the center differential.
If towing is necessary, SUBARU recom-
mends it be done by your SUBARU dealer
or a commercial towing service.
In case of emergency/Engine overheating
–CONTINUED–9-13

Maintenance schedule....................................... 11-3
Maintenance precautions................................... 11-3
Before checking or servicing in the engine
compartment.................................................... 11-4
When checking or servicing in the engine
compartment (2.5 L models)............................. 11-5
When checking or servicing in the engine
compartment while the engine is running.......... 11-5
Maintenance tips................................................ 11-5Removing and reinstalling clips.......................... 11-5
Engine hood....................................................... 11-7
Engine compartment overview.......................... 11-9
2.5 L models...................................................... 11-9
3.6 L models.................................................... 11-10
Engine oil.......................................................... 11-11Engine oil consumption.................................... 11-11
Checking the oil level....................................... 11-11
Changing the oil and oil filter............................ 11-13
Recommended grade and viscosity.................. 11-13
Synthetic oil..................................................... 11-13
Cooling system................................................ 11-14
Cooling fan, hose and connections................... 11-14
Engine coolant................................................. 11-14
Air cleaner element.......................................... 11-15Replacing the air cleaner element..................... 11-15
Spark plugs...................................................... 11-18Recommended spark plugs.............................. 11-18
Drive belts........................................................ 11-18
Manual transmission oil.................................. 11-18
Recommended grade and viscosity.................. 11-18
Continuously variable transmission fluid...... 11-19
Front differential gear oil (CVT models) and
rear differential gear oil................................ 11-19
Recommended grade and viscosity.................. 11-19
Brake fluid........................................................ 11-19Checking the fluid level.................................... 11-19
Recommended brake fluid............................... 11-21
Clutch fluid (MT models)................................. 11-21Checking the fluid level.................................... 11-21
Recommended clutch fluid............................... 11-22
Brake booster.................................................. 11-22
Brake pedal...................................................... 11-22
Checking the brake pedal free play.................. 11-22
Checking the brake pedal reserve distance....... 11-23
Clutch pedal (MT models)............................... 11-23Checking the clutch function............................ 11-23
Checking the clutch pedal free play.................. 11-23
Replacement of brake pad.............................. 11-24Breaking-in of new brake pads ......................... 11-24
Tires and wheels.............................................. 11-24Types of tires................................................... 11-24
Tire pressure monitoring system (TPMS) (if
equipped)...................................................... 11-25
Tire inspection................................................. 11-26
Tire pressures and wear.................................. 11-27
Wheel balance................................................. 11-28
Wear indicators............................................... 11-29
Tire rotation direction mark.............................. 11-29
Tire rotation..................................................... 11-29
Tire replacement.............................................. 11-30
Maintenance and service
11

Maintenance and service/Maintenance precautions
guard against getting oil or fluids
in your eyes. If something does
get in your eyes, thoroughly
wash them out with clean water.
.Do not tamper with the wiring of
the SRS airbag system or seat-
belt pretensioner system, or at-
tempt to take its connectors
apart, as that may activate the
system or it can render it inop-
erative. NEVER use a circuit
tester for these wiring. If your
SRS airbag or seatbelt preten-
sioner needs service, consult
your nearest SUBARU dealer.
NOTE
SUBARU does not endorse the use of
non-SUBARU approved flushing sys-
tems and strongly advises against
performing these services on a
SUBARU vehicle. Non-SUBARU ap-
proved flushing systems use chemi-
cals and/or solvents which have not
been tested or approved by SUBARU.
SUBARU warranties do not cover any
part of the vehicle which is damaged by
adding or applying chemicals and/or
solvents other than those approved or
recommended by SUBARU.
&Before checking or servicing
in the engine compartment
WARNING
.Always stop the engine and apply
the parking brake to prevent the
vehicle from moving.
.Always let the engine cool down.
Engine parts become very hot
when the engine is running and
remain hot for some time after
the engine is stopped.
.Do not spill engine oil, engine
coolant, brake fluid or any other
fluid on hot engine components.
This may cause a fire.
.When the ignition switch is in the
“ON”position, the cooling fan
may operate suddenly even
when the engine is stopped. If
your body or clothes come into
contact with a rotating fan, that
could result in serious injury. To
avoid risk of injury, perform the
following precautions.
–Models with push-button start
system:
Always turn the push-button
ignition switch to the“OFF”
position and confirm that theoperation indicator on the
switch is turned off. Then take
the access key out from the
vehicle.
–Models without push-button
start system:
Always remove the key from
the ignition switch.
.Before performing any servicing
on a vehicle equipped with a
remote engine start system tem-
porarily place that system in the
service mode to prevent it from
unexpectedly starting the engine.
11-4

Engine compartment overview
&2.5 L models
1) Brake fluid reservoir/Clutch fluid reservoir
(MT) (page 11-19)
2) Fuse box (page 11-38)
3) Windshield washer tank (page 11-32)
4) Battery (page 11-37)
5) Engine oil filler cap (page 11-11)
6) Engine coolant reservoir (page 11-14)
7) Radiator cap (page 11-14)
8) Engine oil filter (page 11-13)
9) Engine oil level gauge (page 11-11)
10) Air cleaner case (page 11-15) Maintenance and service/Engine compartment overview
–CONTINUED–
11-9

Maintenance and service/Engine compartment overview
&3.6 L models1) Brake fluid reservoir (page 11-19)
2) Fuse box (page 11-38)
3) Windshield washer tank (page 11-32)
4) Battery (page 11-37)
5) Engine oil filler cap (page 11-11)
6) Engine coolant reservoir (page 11-14)
7) Radiator cap (page 11-14)
8) Engine oil level gauge (page 11-11)
9) Air cleaner case (page 11-15)
11-10