stop start SUBARU IMPREZA 2011 4.G Service Manual

correctly in place.
8. Start and race the engine at 2,000 to
3,000 rpm for 5 to 6 times within 40seconds.
9. Stop the engine and wait until the
coolant cools down (122 to 1408F [50 to
60 8C]). If there is any loss of coolant, add
coolant to the radiator ’s filler neck and to
the reserve tank ’s “FULL ”level.
10. Put the radiator cap and reservoir cap
back on and tighten firmly. Air cleaner element
WARNING
Do not operate the engine with the
air cleaner element removed. The air
cleaner element not only filters
intake air but also stops flames if
the engine backfires. If the air
cleaner element is not installed
when the engine backfires, you
could be burned.
CAUTION
When replacing the air cleaner ele-
ment, use a genuine SUBARU air
cleaner element. If it is not used,
there is the possibility of causing a
negative effect to the engine.
The air cleaner element functions as a
filter screen. When the element is perfo-
rated or removed, engine wear will be
excessive and engine life shortened.
It is not necessary to clean or wash the air
cleaner element. &
Replacing the air cleaner element
Replace the air cleaner element according
to the maintenance schedule in the“ Warranty and Maintenance Booklet ”. Un-
der extremely dusty conditions, replace it
more frequently. It is recommended that
you always use genuine SUBARU parts. ! Non-turbo models
1) Connector
2) Clip
3) Clamp
4) Air intake boot
5) Clip
1. Unplug the connector that is attached
to the top of the air cleaner case.
2. Detach the connector cable from the
clip on the right side on the air cleaner Maintenance and service
11-17
– CONTINUED –

advisable.
CAUTION
. Clutch fluid absorbs moisture
from the air. Any absorbed moist-
ure can cause improper clutchoperation.
. If the vehicle requires frequent
refilling, there may be a leak. If
you suspect a problem, have the
vehicle checked at your SUBARU
dealer.
. When clutch fluid is added, be
careful not to allow any dirt into
the tank.
. Never splash the clutch fluid over
painted surfaces or rubber parts.
Alcohol contained in the clutch
fluid may damage them.
. Be careful not to spill clutch fluid
when adding it. If clutch fluid
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If clutch fluid gets on the
exhaust pipe, be sure to wipe itoff. &
Recommended clutch fluid
Refer to “Fluids ”F 12-9.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, 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 one 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. NOTE
For vehicles equipped with the brake
assist system, when you depress the
brake pedal strongly or suddenly, the
following phenomena occur. However,
even though these occur, they do not
indicate any malfunctions, and the
brake assist system is operating prop-Maintenance and service
11-27
– CONTINUED –

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) 0.16 –0.43 in (4.0 –11.0 mm)
Lightly depress 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. Hill start assist system (MT
models
–if equipped)
Ensure that the Hill start assist system
operates properly under the followingcircumstances:
1. Stop the vehicle on an uphill grade by
depressing the brake pedal and clutch
pedal, with the engine running.
2. Make sure that the vehicle does not
move backward even after the brake
pedal is released.
3. Then make sure the vehicle starts
climbing the grade by following the normal
starting procedures.
If the Hill start assist system does not
operate as described above, contact with
your SUBARU dealer. Maintenance and service
11-29

Exhaust gas (carbon monoxide)............................. 6, 8-2
Hood .................................................................... 11-5
Oil............................................................... 11-10, 12-5 Overheating .......................................................... 9-13
Starting ................................................................... 7-9
Stopping ............................................................... 7-10
Exterior care .............................................................. 10-2
F
Flat tires ..................................................................... 9-6
Floor mat .................................................................. 6-11
Fluid level Automatic transmission .......................................... 11-22
Brake .................................................................. 11-25
Clutch .................................................................. 11-26
Power steering ..................................................... 11-24
Fog light
Bulb .................................................................... 11-50
Indicator light ......................................................... 3-27
Switch .................................................................. 3-36
Folding mirror switch .................................................. 3-48
Front Differential gear oil ........................................ 11-23, 12-8
Fog light ...................................................... 3-36, 11-50
Fog light indicator light ............................................ 3-27
Seatbelt pretensioners ............................................ 1-19
Turn signal light .................................................... 11-50
Front seats .................................................................. 1-2
Active head restraint ................................................. 1-5
Forward and backward adjustment ............................. 1-3
Head restraint adjustment ......................................... 1-4 Reclining
................................................................ 1-3
Seat cushion height adjustment ... .............................. 1-4
Fuel ........................................................................... 7-3
Consumption indicator ............................................. 3-29
Economy hints ........................................................ 8-2
Filler lid and cap ...................................................... 7-4
Gauge ................................................................... 3-10
Requirements ................................................. 7-3, 12-4
Fuses ..................................................................... 11-45
Main fuse ............................................................ 11-46
Fuses and circuits .................................................... 12-12
G
GAWR (Gross Axle Weight Rating) .. ............................. 8-13
Glove box ................................................................... 6-5
GVWR (Gross Vehicle Weight Rating) ........................... 8-13
H
Hands-free system. ..................................................... 5-46
Hazard warning flasher .......................................... 3-5, 9-2
Head restraint adjustment
Front seat ............................................................... 1-4
Rear seat ............................................................... 1-8
Headlight Beam leveler. ......................................................... 3-34
Bulb replacement ................................................. 11-47
Bulb replacing ...................................................... 11-47
Bulb wattage ........................................................ 12-16
Control switch ........................................................ 3-31
Flasher .................................................................. 3-32
Indicator light ......................................................... 3-27 Index
14-5

14-6Index
Heater operation (manual climate control system) .. .......... 4-5
High beam indicator light ............................................ 3-26
High mount stop light ................................................. 11-55
High/low beam change (dimmer) .................................. 3-32
Hill start assist (MT models) ............................... 7-42, 11-29
OFF indicator light .................................................. 3-23
To activate/deactivate ............................................. 7-42
Warning light ................................................. 3-22, 3-22
HomeLink
®................................................................ 3-41
Hook Cargo tie-down ...................................................... 6-13
Shopping bag ........................................................ 6-11
Towing and tie-down ............................................... 9-14
Horn ......................................................................... 3-51
Hose and connections ............................................... 11-14
I
Ignition switch .............................................................. 3-3
Light ....................................................................... 3-5
Illumination brightness control ...................................... 3-33
Immobilizer. ................................................................. 2-2
Indicator light (security indicator light) ....................... 3-25
Indicator light Coolant temperature low ......................................... 3-17
Cruise control ........................................................ 3-26
Cruise control set ................................................... 3-27
Front fog light ........................................................ 3-27
Headlight .............................................................. 3-27
High beam ............................................................ 3-26
Hill start assist OFF ................................................ 3-23
Immobilizer. ........................................................... 3-25 REV.
..................................................................... 3-28
Security ................................................................. 3-25
Select lever/Gear position ........................................ 3-26
Shift-up ................................................................. 3-26
SI-DRIVE .............................................................. 3-26
SPORT mode ........................................................ 3-25
Traction control OFF ............................................... 3-23
Turn signal ............................................................ 3-26
Vehicle Dynamics Control OFF ................................. 3-23
Vehicle Dynamics Control operation .. ........................ 3-23
Information display ...................................................... 3-29
Inside mirror .............................................................. 3-40
Interior lights ............................................................... 6-2
Internal trunk lid release handle .................................... 2-25
iPod
®operations ........................................................ 5-37
J
Jack and jack handle ................................................... 9-5
Jack-up point .............................................................. 9-6
Jump starting ............................................................. 9-11
K
Key............................................................................ 2-2 Number .................................................................. 2-2
Reminder chime ...................................................... 3-5
Replacement. .......................................................... 2-3
L
Leather seat materials ................................................. 10-5
License plate light ..................................................... 11-53

Headlight............................................................. 11-47
High mount stop light ............................................. 11-55
License plate light ................................................. 11-53
Map light .............................................................. 11-53
Rear combination light ........................................... 11-51
Trunk light ............................................................ 11-55
REV indicator light and buzzer ..................................... 3-11
Rocking the vehicle .................................................... 8-11
Roof molding and crossbar ......................................... 8-14
S Safety Precautions when driving ............................................. 5
Symbol ...................................................................... 2
Warnings ................................................................... 2
Seat Fabric ................................................................... 10-5
Front ...................................................................... 1-2
Heater .................................................................... 1-6
Rear ....................................................................... 1-7
Seatbelt ................................................................. 5, 1-11
Fastening .............................................................. 1-12
Maintenance .......................................................... 1-19
Pretensioners ........................................................ 1-19
Safety tips ............................................................. 1-11
Warning light and chime ......................................... 3-14
Security Alarm system ........................................................ 2-16
ID plate ................................................................... 2-3
Immobilizer. ............................................................. 2-2
Indicator light ......................................................... 3-25 Shock sensors
....................................................... 2-20
Select lever ............................................................... 7-23
Position indicator .................................................... 3-26
Shift lock function ................................................... 7-24
Shift-up indicator light .................................................. 3-26
Shock sensors ........................................................... 2-20
Shopping bag hook ..................................................... 6-11
SI-DRIVE Indicator light ......................................................... 3-26
SI-DRIVE mode. ......................................................... 7-28
Snow tires ....................................................... 8-10, 11-31
Snowy and icy roads ................................................... 8-9
Sounding a panic alarm .............................................. 2-10
Spark plugs ..................................................... 11-19, 12-3
Specifications ............................................................. 12-2
Speedometer .............................................................. 3-8
SPORT mode ............................................................ 7-28
Indicator light ......................................................... 3-25
SRS Curtain airbag ........................................................ 1-49
Frontal airbag ......................................................... 1-39
Side airbag ............................................................ 1-49
SRS airbag (Supplemental Restraint System airbag)... 5, 1-35
SRS airbag system Monitors ................................................................ 1-55
Servicing ............................................................... 1-57
Warning light .......................................................... 3-15
Starting the engine ...................................................... 7-9
State emission testing (U.S. only) .................................. 7-7
Steering wheel Power ................................................................... 7-31 Index
14-9