2016 SUBARU IMPREZA spark plugs replace

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 .................................................... 11-4
When checking or servicing in the engine compartment while the engine is running .......... 11-5
Engine hood....................................................... 11-5
Engine compartment overview .......................... 11-7
Engine oil ............................................................ 11-8
Engine oil consumption ...................................... 11-8
Locations of the oil level gauge, oil filler cap and oil filter ............................................................ 11-8
Checking the oil level ......................................... 11-8
Changing the oil and oil filter .............................. 11-9
Recommended grade and viscosity .................. 11-10
Synthetic oil ..................................................... 11-10
Cooling system ................................................ 11-10Safety precautions ........................................... 11-10
Cooling fan, hose and connections ................... 11-11
Engine coolant ................................................. 11-11
Air cleaner element .......................................... 11-12Replacing the air cleaner element ..................... 11-13
Spark plugs...................................................... 11-14Recommended spark plugs .............................. 11-14
Drive belts........................................................ 11-14
Manual transmission oil .................................. 11-14
Recommended grade and viscosity .................. 11-14
Continuously variable transmission fluid ....... 11-15Front differential gear oil (CVT models)
......... 11-15
Recommended grade and viscosity.................. 11-15
Rear differential gear oil.................................. 11-15Recommended grade and viscosity .................. 11-15
Brake fluid........................................................ 11-16Checking the fluid level .................................... 11-16
Recommended brake fluid ............................... 11-16
Clutch fluid (MT models)................................. 11-17Checking the fluid level.................................... 11-17
Recommended clutch fluid ............................... 11-17
Brake booster.................................................. 11-18
Brake pedal ...................................................... 11-18
Checking the brake pedal free play .................. 11-18
Checking the brake pedal reserve distance ....... 11-18
Clutch pedal (MT models) ............................... 11-19Checking the clutch function ............................ 11-19
Checking the clutch pedal free play .................. 11-19
Hill start assist system.................................... 11-19
Replacement of brake pad and lining ............ 11-20
Breaking-in of new brake pads and linings ....... 11-20
Parking brake stroke ....................................... 11-21
Tires and wheels .............................................. 11-21
Types of tires................................................... 11-21
Tire pressure monitoring system (TPMS) (if equipped) ...................................................... 11-21
Tire inspection ................................................. 11-23
Tire pressures and wear .................................. 11-23
Wheel balance ................................................. 11-25
Wear indicators ............................................... 11-25
Tire rotation direction mark .............................. 11-26
Maintenance and service
11

Maintenance and service/Spark plugs
Spark plugs
It may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced
according to the maintenance schedule
in the“Warranty and Maintenance Book-
let ”.
CAUTION
Make sure the cables are replaced in
the correct order.
& Recommended spark plugs
For the recommended spark plugs, refer
to“Electrical system ”F 12-7.
Drive belts
It is unnecessary to check the deflection of
the drive belt periodically because your
engine is equipped with an automatic belt
tension adjuster. However, replacement of
the belt should be done according to the
maintenance schedule in the “Warranty
and Maintenance Booklet ”. Consult your
SUBARU dealer for replacement.
If the drive belt is loose, cracked or worn,
contact your SUBARU dealer.
Manual transmission oil
It is not necessary to check the transmis-
sion oil level. Check that there are no
cracks, damage or leakage. However, the
oil inspection should be performed ac-
cording to the maintenance schedule in
the “Warranty and Maintenance Booklet ”.
Consult your SUBARU dealer for details.
& Recommended grade and
viscosity
Each oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
“Manual transmission, front differential
and rear differential gear oil ”F 12-6.
11-14

&Fluids
Fluid
Fluid type*1Fluid capacity*2Remarks*3
Continuously variable transmission
fluid (CVT models) Consult your SUBARU dealer. 12.6 US qt (11.9 liters, 10.5 Imp qt) “
Continuously variable trans-
mission fluid ”F 11-15
Brake fluid FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid
–“
Brake fluid”F 11-16
Clutch fluid (MT models) FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid
–
“
Clutch fluid (MT models) ”F 11 -
17
*1: Use one of the indicated types of fluid.
*2: The indicated fluid quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors.
*3: For more details about maintenance and service, refer to the indicated section.
& Engine coolant
Vehicle model Coolant capacity Coolant type
MT models 8.5 US qt (8.0 liters, 7.0 Imp qt)
SUBARU Super Coolant
CVT models 8.9 US qt (8.4 liters, 7.4 Imp qt)
The indicated coolant quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. For more details about maintenance and service, refer to “Cooling system ”F 11-10.
& Electrical system
Battery type 55D23L
Alternator 12V-130A
Spark plugs SILZKAR7B11 (NGK)Specifications/Specifications
–CONTINUED –
12-7

14-8Index
Overheating engine.................................................... 9-13
P
Parking Brake ................................................................... 7-40
Brake stroke ......................................................... 11-21
Light .................................................................... 11-38
Tips...................................................................... 7-40
Periodic inspections ..................................................... 8-4
Petrol fuel ................................................................... 7-3
PIN Code Access ...................................................... 2-21
Power Door locking switch .................................................. 2-8
Outlets .................................................................... 6-8
Outside mirrors .................................................... 3-108
Steering ................................................................ 7-30
Steering warning light ............................................. 3-23
Windows ............................................................... 2-35
Precautions against vehicle modification ............... 1-24, 1-70
Preparing to drive ........................................................ 7-8
Push-button Ignition switch .......................................................... 3-6
Starting and stopping engine ................................... 7-12
R
Rear Combination lights ................................................. 11-38
Differential gear oil ........................................ 11-15, 12-6
Gate ............................................................. 2-41, 9-19
Turn signal light .................................................... 11-38
Rear seat .................................................................... 1-7 Armrest
.................................................................. 1-8
Folding down ......................................................... 1-10
Head restraint adjustment ......................................... 1-8
Rear view camera ...................................................... 6-15
How to adjust the rear view image ............................ 5-25
Rear window Defogger ............................................................. 3-108
Wiper and washer switch ......................................... 3-99
Wiper blades ........................................................ 11-32
Recommended Brake fluid ............................................................. 12-7
Continuously variable transmission fluid .................... 12-7
Engine oil .............................................................. 12-4
Front differential gear oil .......................................... 12-6
Rear differential gear oil .......................................... 12-6
Spark plugs ........................................................... 12-7
Refueling .................................................................... 7-5
Remote engine start system ........................................ 7-14
Remote keyless entry system ...................................... 2-23
Replacement Access key battery ............................................... 11-44
Air cleaner element ............................................... 11-13
Brake pad and lining ............................................. 11-20
Lost transmitters (remote keyless entry system) ......... 2-26
Remote engine start transmitter battery ..................... 7-20
Remote keyless entry transmitter battery ................. 11-45
Wiper blades ........................................................ 11-30
Replacing bulbs.............................................

11-36, 12-14
Backup light ......................................................... 11-38
Cargo area light ................................................... 11-42
Dome light ........................................................... 11-42