2004 SUBARU IMPREZA WRX automatic transmission

8-17
Driving tips
– CONTINUED –
trying to free the vehicle.
When the road surface is extremely slippery, you can
obtain better traction by starting the vehicle with the
transmission in 2nd than 1st (both for MT and AT).
Refer to the “Automatic transmission” section in chap-
ter 7 for information on holding the transmission in 2ndposition.Loading your vehicle
"Never allow passengers to ride on the folded
rear seatback, in the trunk or in the cargo area.
Doing so may result in serious injury." Never stack luggage or other cargo higher
than the top of the seatback because it could
tumble forward and injure passengers in the
event of a sudden stop or accident. Keep lug-
gage or cargo low, as close to the floor as pos-
sible.

8-39
Driving tips
– CONTINUED –
tance is required because of the added weight and
length caused by attaching the trailer to your vehicle.
1) Left turn
2) Right turn
" Backing up with a trailer is difficult and takes prac-
tice. When backing up with a trailer, never accelerate
or steer rapidly. When turning back, grip the bottom of
the steering wheel with one hand and turn it to the left
for a left turn, and turn it to the right for a right turn." If the ABS warning light illuminates while the vehicle
is in motion, stop towing the trailer and have repairs
performed immediately by the nearest SUBARU deal-er. !
Driving on grades
" Before going down a steep hill, slow down and shift
into lower gear (if necessary, use 1st gear) in order to
utilize the engine braking effect and prevent overheat-
ing of your vehicle’s brakes. Do not make sudden
downshifts. " When driving uphill in hot weather, the air condition-
er may turn off automatically to protect the engine from
overheating. " When driving uphill in hot weather, pay attention to
the water temperature gauge pointer (for all vehicles)
and AT OIL TEMP warning light (for AT vehicles) since
the engine and transmission are relatively prone to
overheating under these conditions. If the water tem-
perature gauge pointer approaches the OVERHEAT
zone or the AT OIL TEMP warning light illuminates,
immediately switch off the air conditioner and stop the
vehicle at the nearest safe place. Refer to the “Engine
overheating” section in chapter 9, and “Warning and
indicator lights” section in chapter 3." If your vehicle has an automatic transmission, avoid
using the accelerator pedal to stay stationary on an
uphill slope instead of using the parking brake or foot
brake. That may cause the transmission fluid to over-
heat. Also, if your vehicle is equipped with an automat-
ic transmission, avoid driving with the gear selector le-
ver in “D” when towing a heavy trailer to prevent fluid
1 2
HS8023BB

8-40
Driving tips
overheating. A lower gear should be used. !
Parking on a grade
Always block the wheels under both vehicle and trailer
when parking. Apply the parking brake firmly. You
should not park on a hill or slope. But if parking on a
hill or slope cannot be avoided, you should take the
following steps:
1. Apply the brakes and hold the pedal down.
2. Have someone place wheel blocks under both the
vehicle and trailer wheels.
3. When the wheel blocks are in place, release the
regular brakes slowly until the blocks absorb the load.
4. Apply the regular brakes and then apply the park-
ing brake; slowly release the regular brakes.
5. Shift into 1st or reverse gear (manual transmission)
or “P” (automatic transmission) and shut off the en-
gine.

9-5
In case of emergency
– CONTINUED –
Flat tires
If you have a flat tire while driving, never brake sud-
denly; keep driving straight ahead while gradually re-
ducing speed. Then slowly pull off the road to a safe
place. !Changing a flat tire
"Do not jack up the vehicle on an incline or a
loose road surface. The jack can come out of
the jacking point or sink into the ground and
this can result in a severe accident. " Use only the jack provided with your vehicle.
The jack supplied with the vehicle is designed
only for changing a tire. Never get under the ve-
hicle while supporting the vehicle with thisjack. " Always turn the engine off before raising the
flat tire off the ground using the jack. Never
swing or push the vehicle supported with the
jack. The jack can come out of the jacking point
due to a jolt and this can result in a severe acci-
dent. 1. Park on a hard, level surface, whenever possible,
then stop the engine.
2. Set the parking brake securely and shift a manual
transmission vehicle in reverse or an automatic trans-
mission vehicle in the “P” (Park) position.
3. Turn on the hazard warning flasher and have ev-
eryone get out of the vehicle.
4. Put wheel blocks at the front and rear of the tire di-
agonally opposite the flat tire.
HS9003BA

9-21
In case of emergency
– CONTINUED –
!Towing with all wheels on the ground
1. Check the transmission and differential oil levels
and add oil to bring it to the upper level if necessary.
2. Release the parking brake and put the transmis-
sion in neutral.
3. The ignition switch should be in the “ACC” position
while the vehicle is being towed.
4. Take up slack in the towline slowly to prevent dam-
age to the vehicle.
" Never turn the ignition switch to the “LOCK”
position while the vehicle is being towed be- cause the steering wheel and the direction of
the wheels will be locked. "
Remember that the brake booster and power
steering do not function when the engine is not
running. Because the engine is turned off, it will
take greater effort to operate the brake pedal
and steering wheel.
" If transmission failure occurs, transport your
vehicle on a flat-bed truck. " Do not run the engine while being towed us-
ing this method. Transmission damage could
result if the vehicle is towed with the engine
running. " For vehicles with automatic transmission,
the traveling speed must be limited to less than
20 mph (30 km/h) and the traveling distance to
less than 31 miles (50 km). For greater speeds
and distances, transport your vehicle on a flat-
bed truck.
HG9024AA

11 - 1
11
Maintenance and service
Maintenance schedule ................................. 11-3
Maintenance precautions ............................ 11-3 Before checking or servicing in the engine compartment .................................................. 11-4
When you do checking or servicing in the engine compartment while the engine is
running ............................................................ 11-5
Engine hood .................................................. 11-5
Engine compartment overview ................... 11-8 2.5 liter model .................................................... 11-8
2.0 liter (Turbo) model ...................................... 11-9
2.5 liter (Turbo) model ...................................... 11-10
Engine oil ...................................................... 11-11 Checking the oil level ....................................... 11-11
Changing the oil and oil filter .......................... 11-12
Recommended grade and viscosity ................ 11-16
Recommended grade and viscosity under severe driving conditions .............................. 11-18
Synthetic oil ....................................................... 11-18
Cooling system ............................................. 11-18 Cooling fan, hose and connections ................ 11-19
Engine coolant .................................................. 11-19
Air cleaner element ...................................... 11-23 Replacing the air cleaner element ................... 11-23
Spark plugs ................................................... 11-26 Recommended spark plugs ............................. 11-27
Drive belts ..................................................... 11-27
Manual transmission oil ............................... 11-28 Checking the oil level ....................................... 11-28
Recommended grade and viscosity ................ 11-30 Automatic transmission fluid ...................... 11-31
Checking the fluid level .................................... 11-31
Recommended fluid ......................................... 11-32
Front differential gear oil (AT vehicles) ...... 11-33 Checking the oil level ....................................... 11-33
Recommended grade and viscosity ............... 11-33
Rear differential gear oil ............................... 11-34 Checking the gear oil level .............................. 11-34
Recommended grade and viscosity ............... 11-35
Power steering fluid ...................................... 11-36 Checking the fluid level .................................... 11-36
Recommended fluid ......................................... 11-37
Brake fluid ..................................................... 11-37 Checking the fluid level .................................... 11-37
Recommended brake fluid ............................... 11-38
Clutch fluid (MT vehicles) ............................ 11-38 Checking the fluid level .................................... 11-38
Recommended clutch fluid .............................. 11-39
Brake booster ................................................ 11-40
Brake pedal .................................................... 11-40 Checking the brake pedal free play ................ 11-40
Checking the brake pedal reserve distance ... 11-41
Clutch pedal (MT vehicles) ........................... 11-41 Checking the clutch function .......................... 11-41
Checking the clutch pedal free play ............... 11-42
Replacement of brake pad and lining ......... 11-42 Breaking-in of new brake pads and linings .... 11-43
Parking brake stroke .................................... 11-44
Tires and wheels ........................................... 11-44

11 - 8
Maintenance and service
Engine compartment overview !
2.5 liter model
12 345 67
8
9
10
11
12
13
UGB505BB
1) Manual transmission oil level
gauge (MT) (page 11-28) or Dif-
ferential gear oil level gauge
(AT) (page 11-33)
2) Air cleaner element (page 11- 23)
3) Clutch fluid reservoir (page 11- 38)
4) Automatic transmission fluid lev-
el gauge (page 11-31)
5) Brake fluid reservoir (page 11-
37)
6) Windshield washer tank (page 11-54)
7) Fuse box (page 11-60)
8) Battery (page 11-58)
9) Engine oil filler cap (page 11-11)
10) Engine coolant reservoir (page 11-19)
11) Radiator cap (page 11-19)
12) Engine oil level gauge (page 11- 11)
13) Power steering fluid reservoir
(page 11-36)

11 - 9
Maintenance and service
– CONTINUED –
!2.0 liter (Turbo) model
34 5 6 7
1
2
13 12 11 10 9 8
HGB005CB
1) Manual transmission oil level gauge (MT) (page 11-28) or Dif-
ferential gear oil level gauge
(AT) (page 11-33)
2) Air cleaner element (page 11- 23)
3) Clutch fluid reservoir (page 11- 38)
4) Automatic transmission fluid lev-
el gauge (page 11-31)
5) Brake fluid reservoir (page 11-
37)
6) Windshield washer tank (page 11-54)
7) Fuse box (page 11-60)
8) Battery (page 11-58)
9) Engine oil filler cap (page 11-11)
10) Engine coolant reservoir (page 11-19)
11) Engine oil level gauge (page 11-
11)
12) Radiator cap (page 11-19)
13) Power steering fluid reservoir
(page 11-36)