2016 SUBARU LEGACY check engine

Maintenance and service/Brake booster
Check the fluid level monthly.
Check the fluid level on the outside of the
reservoir. Because this reservoir is used
for both the brake and clutch systems and
has chambers for each system, be sure to
check the fluid level for the clutch system
at theinboard side of the reservoir
(shaded area in the illustration). If the fluid
level is below“MIN”, add the recom-
mended clutch fluid to“MAX”.
Use only clutch fluid from a sealed
container.
&Recommended clutch fluid
Refer to“Fluids”F12-8.
CAUTION
Never use different brands of clutch
fluid together. Also, avoid mixing
DOT 3 and DOT 4 brake fluids even if
they are the same brand.
Brake booster
If the brake booster does not operate as
described in the following procedure, have
it checked by your SUBARU dealer.
1. With the engine off, depress the brake
pedal several times, applying the same
pedal force each time. The distance the
pedal travels should not vary.
2. With the brake pedal depressed, start
the engine. The pedal should move
slightly down to the floor.
3. With the brake pedal depressed, stop
the engine and keep the pedal depressed
for 30 seconds. The pedal height should
not change.
4. Start the engine again and run for
approximately 1 minute then turn it off.
Depress the brake pedal several times to
check the brake booster. The brake
booster operates properly if the pedal
stroke decreases with each depression.
Brake pedal
Check the brake pedal free play and
reserve distance according to the main-
tenance schedule in the“Warranty and
Maintenance Booklet”.
&Checking the brake pedal
free play
1) 0.02–0.11 in (0.5–2.7 mm)
Stop the engine and firmly depress the
brake pedal several times. Lightly pull the
brake pedal up with one finger to check
the free play with a force of less than 2 lbf
(10 N, 1 kgf).
If the free play is not within proper
specification, contact your SUBARU deal-
er.
11-22

&Checking the brake pedal
reserve distance
1) More than 2.56 in (65 mm)
Depress the pedal with a force of approxi-
mately 66 lbf (294 N, 30 kgf) and measure
the distance between the upper surface of
the pedal pad and the floor.
When the measurement is smaller than
the specification, or when the pedal does
not operate smoothly, contact with your
SUBARU dealer.
Clutch pedal (MT models)
Check the clutch pedal free play and
reserve distance according to the main-
tenance schedule in the“Warranty and
Maintenance Booklet”.
&Checking the clutch function
Check the clutch engagement and disen-
gagement.
1. With the engine idling, check that there
are no abnormal noises when the clutch
pedal is depressed, and that shifting into
1st or reverse feels smooth.
2. Start the vehicle by releasing the pedal
slowly to check that the engine and
transmission smoothly couple without
any sign of slippage.
&Checking the clutch pedal
free play
1) 0.19–0.44 in (5–11 mm)
Lightly press the clutch pedal down with
your finger until you feel resistance, and
check the free play.
If the free play is not within proper
specification, contact your SUBARU deal-
er.
Maintenance and service/Clutch pedal (MT models)11-23

Maintenance and service/Windshield washer fluid
Windshield washer fluid
CAUTION
Never use engine coolant as washer
fluid because it could cause paint
damage.
Windshield washer fluid warning indicator
When there is only a small amount of
washer fluid remaining, the windshield
washer fluid warning indicator will appear.
When this occurs, refill the washer fluid as
follows.
1)“FULL”mark
Remove the washer tank filler cap, then
add fluid until it reaches the“FULL”mark
on the tank.
Use windshield washer fluid. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter,
use an anti-freeze type windshield washer
fluid. SUBARU Windshield Washer Fluid
contains 58.5% methyl alcohol and 41.5%
surfactant, by volume. Its freezing tem-
perature varies according to how much it
is diluted, as indicated in the following
table.
Washer Fluid
ConcentrationFreezing
Temperature
30%
10.48F(−128C)
50%−48F(−208C)
100%−498F(−458C)
CAUTION
Never use engine coolant as washer
fluid because it could cause paint
damage.
In order to prevent freezing of washer
fluid, check the freezing temperatures in
the table above when adjusting the fluid
concentration to the outside temperature.
If you fill the reservoir tank with a fluid with
a different concentration from the one
used previously, purge the old fluid from
the piping between the reservoir tank and
washer nozzles by operating the washer
for a certain period of time. Otherwise, if
the concentration of the fluid remaining in
the piping is too low for the outside
temperature, it may freeze and block the
nozzles.
11-32

Specifications/Specifications
&Engine oil
For the checking, adding and replacing procedure or other details, refer to“Engine oil”F11-11.
NOTEThe procedure for changing the engine oil and oil filter should be performed by a properly-trained expert. It is recommended
that you have this service performed by your SUBARU dealer.
!Approved engine oil
Always use the SUBARU approved engine oil. For further details, please contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative engine oil described on the next page.
!Alternative engine oil
If the SUBARU approved oil is unavailable, the following alternative oil can be used.
NOTE
.Each quantity indicated is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
.In choosing an oil, you want the proper quality and viscosity, as well as one that will enhance fuel economy. Oils of lower
viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the
engine. The following table lists the recommended viscosities and applicable temperatures.
.When adding oil, different brands may be used together as long as they are the same API classification and SAE viscosity
as those recommended by SUBARU.
12-4

Booster seat.............................................................. 1-34
Bottle holder................................................................ 6-9
Brake
Assist................................................................... 7-32
Booster........................................................ 7-32, 11-22
Disc..................................................................... 12-9
Fluid............................................................ 11-19, 12-8
Pad ..................................................................... 11-24
Parking................................................................. 7-42
Pedal.................................................................. 11-22
System................................................................. 7-32
Brake pedal
Free play............................................................. 11-22
Reserve distance.................................................. 11-23
Brake system............................................................ 7-32
Warning light......................................................... 3-18
Braking..................................................................... 7-32
Tips...................................................................... 7-32
Breaking-in of new brake pads................................... 11-24
BSD/RCTA................................................................ 7-53
Approach indicator light/warning buzzer.................... 7-56
OFF indicator........................................ 3-31, 3-38, 7-56
OFF switch........................................................... 7-59
Warning indicator................................... 3-31, 3-38, 7-58
Warning volume..................................................... 3-42
Bulb
Chart.................................................................. 12-14
Replacing............................................................. 11-40C
Cargo area
Cover.................................................................... 6-16
Light............................................................. 6-3, 11-49
Tie-down hooks...................................................... 6-19
Catalytic converter....................................................... 8-3
Center
Console................................................................. 6-6
Changing
Coolant............................................................... 11-15
Flat tire.................................................................. 9-5
Oil and oil filter..................................................... 11-13
Charge warning light................................................... 3-15
CHECK ENGINE warning light/Malfunction indicator
light....................................................................... 3-15
Checking
Brake pedal free play............................................ 11-22
Brake pedal reserve distance................................. 11-23
Clutch function..................................................... 11-23
Clutch pedal free play........................................... 11-23
Coolant level........................................................ 11-14
Fluid level (brake fluid).......................................... 11-19
Fluid level (clutch fluid).......................................... 11-21
Fluid level (washer fluid)........................................ 11-32
Oil level (engine oil).............................................. 11-11
Child restraint systems................................................ 1-27
Installation of a booster seat.................................... 1-34
Installation with A/ELR seatbelt................................ 1-30
Lower and tether anchorages
................................... 1-35
Top tether anchorages............................................ 1-38
Child safety................................................................... 4
Index14-3

J
Jack-up point............................................................... 9-5
Jump starting............................................................. 9-11
K
Key ............................................................................ 2-3
Number.................................................................. 2-3
Reminder chime....................................................... 3-4
Replacement........................................................... 2-5
Keyless access with push-button start system ............... 2-10
Disabling keyless access functions........................... 2-18
Locking and unlocking doors................................... 2-13
Opening rear gate.................................................. 2-16
Opening trunk........................................................ 2-16
Warning chimes and warning indicator...................... 3-24
When access key does not operate properly............. 9-18
Keyless entry system................................................. 2-23
L
LCA ......................................................................... 7-54
Leather seat materials................................................ 10-5
License plate light..................................................... 11-47
Light
Backup................................................................ 11-45
Cargo area.................................................... 6-3, 11-49
Control switch........................................................ 3-43
Daytime running..................................................... 3-46
Dome........................................................... 6-2, 11-48
Door step............................................................. 11-48
Front fog...................................................... 3-49, 11-42
Front side marker................................................... 3-44Ignition switch......................................................... 3-4
License plate....................................................... 11-47
Map .............................................................. 6-2, 11-48
Rear combination................................................. 11-43
Rear side marker light........................................... 11-43
Rear turn signal.................................................... 11-43
Trunk.................................................................. 11-49
Turn signal........................................ 3-47, 11-42, 11-43
Vanity mirror........................................................... 6-5
Loading your vehicle................................................... 8-12
Low fuel warning light................................................. 3-21
Low tire pressure warning light..................................... 3-16
Lower and tether anchorage........................................ 1-35
M
Maintenance
Precautions........................................................... 11-3
Schedule............................................................... 11-3
Seatbelt................................................................. 1-24
Tips ...................................................................... 11-5
Tools...................................................................... 9-3
Malfunction indicator light (check engine warning light) .... 3-15
Manual
Climate control system............................................. 4-6
Mode (continuously variable transmission)................. 7-29
Seat....................................................................... 1-4
Transmission......................................................... 7-23
Transmission oil........................................... 11-18, 12-7
Map light........................................................... 6-2, 11-48
Maximum load limits
................................................... 8-21
Meters and gauges...................................................... 3-7
Index14-7

Trailer
Connecting............................................................ 8-19
Hitch (Outback).............................................. 8-18, 8-25
Towing.................................................................. 8-21
Towing tips............................................................ 8-26
Trip meter................................................................... 3-9
Trunk lid........................................................... 2-38, 9-19
Release handle..................................................... 2-39
Trunk light................................................................ 11-49
Turn signal
Indicator lights....................................................... 3-30
Lever.................................................................... 3-47
U
Under-floor storage compartment................................. 6-20
V
Valet mode................................................................ 2-32
Vanity mirror................................................................ 6-5
Vehicle
Capacity weight..................................................... 8-13
Identification........................................................ 12-18
Symbols.................................................................... 3
Vehicle Dynamics Control
OFF indicator light.................................................. 3-24
OFF switch........................................................... 7-37
Operation indicator light.......................................... 3-23
System................................................................. 7-35
Warning light......................................................... 3-23
Ventilator.................................................................... 4-2
Voice command operation........................................... 5-81W
Warning and indicator lights......................................... 3-12
Warning chimes
Keyless access with push-button start system ............ 3-24
Seatbelt................................................................. 3-12
Warning light
ABS...................................................................... 3-18
Access key............................................................ 3-24
All-Wheel Drive...................................................... 3-22
AT OIL TEMP......................................................... 3-16
Automatic headlight beam leveler............................. 3-30
Brake system......................................................... 3-18
Charge.................................................................. 3-15
CHECK ENGINE.................................................... 3-15
Engine low oil level................................................. 3-16
Keyless access with push-button start system ............ 3-24
Low fuel................................................................ 3-21
Low tire pressure.................................................... 3-16
Oil pressure........................................................... 3-15
Power steering....................................................... 3-22
Seatbelt................................................................. 3-12
SRS airbag system................................................. 3-14
Vehicle Dynamics Control........................................ 3-23
Windshield washer fluid........................................... 3-22
Warning volume
BSD/RCTA............................................................ 3-42
EyeSight system.................................................... 3-41
Warranties
..................................................................... 1
Warranties and maintenance........................................ 8-21
Washing.................................................................... 10-2
Waxing and polishing.................................................. 10-3
Index14-11

GAS STATION REFERENCE
&
Fuel:
Use onlyunleaded gasolinewith an octane rating of87 AKI
(90 RON) or higher.
&Fuel octane rating
!RON
This octane rating is the Research Octane Number.
!AKI
This octane rating is the average of the Research Octane and
Motor Octane numbers and is commonly referred to as the Anti
Knock Index (AKI).
&Fuel capacity:
18.5 US gal (70 liters, 15.4 Imp gal)
&Engine oil:
Always use the SUBARU approved engine oil. For further
details, please contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative
engine oil described as follows.
.API classification SN with the words“RESOURCE CON-
SERVING”
.or ILSAC GF-5, which can be identified with the ILSAC
certification mark (Starburst mark)
For the complete viscosity requirements, refer to“Engine oil”
F12-4.
&Engine oil capacity:
2.5 L models: 5.1 US qt (4.8 liters, 4.2 Imp qt)
3.6 L models: 6.9 US qt (6.5 liters, 5.7 Imp qt)
The indicated oil quantity is only a guideline and is estimated
based on a case when the engine oil is changed with an oil
filter. After refilling the engine with oil, the oil level should be
checked using an oil level gauge. For more details about
maintenance and service, refer to“Engine oil”F11-11.
&Cold tire pressure:
Refer to“Tires”F12-9.