maintenance SUBARU LEGACY 2006 4.G User Guide

8-4 Driving tips
reduce HC, CO and NOx in exhaust gas-
es, thus providing cleaner exhaust.
To avoid damage to the catalytic convert- er: yUse only unleaded gasoline. Even a
small amount of leaded gasoline will dam-
age the catalytic converter. y Never start the engine by pushing or
pulling the vehicle. y Avoid racing the engine.
y Never turn off the ignition switch while
the vehicle is moving.y Keep your engine tuned-up. If you feel
the engine running rough (misfiring, back-
firing or incomplete combustion), have
your vehicle checked and repaired by an
authorized SUBARU dealer. y Do not apply undercoating or rust pre-
vention treatment to the heat shield of cat-
alytic converter and the exhaust system.Periodic inspections
To keep your vehicle in the best condition
at all times, always have the recommend-
ed maintenance services listed in the
maintenance schedule in the “Warranty
and Maintenance Booklet” performed at
the specified time or mileage intervals.Driving in fo reign countries
When planning to use your vehicle in an- other country: y Confirm the availability of the correct fu-
el. (Refer to the “Fuel requirements” sec-
tion in chapter 7.) y Comply with all regulations and require-
ments of each country.

Driving tips 8-7
– CONTINUED –
ground from under your tires, resulting in
possible loss of traction and even vehicle
rollover.y
Always check your brakes for effective-
ness immediately after driving in sand,
mud or water. Do this by driving slowly
and stepping on the brake pedal. Repeat
that process several times to dry out the
brake discs and brake pads.y Do not drive or park over or near flam-
mable materials such as dry grass or fall-
en leaves, as they may burn easily. The
exhaust system is very hot while the en-
gine is running and right after engine
stops. This could create a fire hazard.y After driving through tall grass, mud,
rocks, sand, rivers, etc., check that there
is no grass, bush, paper, rags, stones,
sand, etc. adhering to or trapped on the
underbody. Clear off any such matter from
the underbody. If the vehicle is used with
these materials trapped or adhering to the
underbody, a mechanical breakdown or
fire could occur. y Secure all cargo carried inside the vehi-
cle and make certain that it is not piled higher than the seatbacks. During sudden
stops or jolts, unsecured cargo could be
thrown around in the vehicle and cause in-
jury. Do not pile heavy loads on the roof.
Those loads raise the vehicle’s center of
gravity and make it more prone to tip over. y
If you must rock the vehicle to free it
from sand or mud, depress the accelera-
tor pedal slightly and move the selector le-
ver back and forth between “D” and “R” re-
peatedly. Do not race the engine. For the
best possible traction, avoid spinning the
wheels when trying to free the vehicle. y 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). y Never equip your vehi cle with tires larg-
er than those specified in this manual. y Wash the vehicle’s underbody after off-
road driving. Suspension components are
particularly prone to dirt buildup, so they
need to be washed thoroughly. y Frequent driving of an AWD vehicle un-
der hard-driving condit ions such as rough
roads or off roads will necessitate more
frequent replacement of engine oil, brake
fluid and transmission oil than that speci-
fied in the maintenance schedule de-
scribed in the “Warranty and Maintenance Booklet”.
Remember that damage done to your
SUBARU while operating it off-road and
not using common sense precautions
such as those listed above is not eligible for warranty coverage.
Winter driving „ Operation during cold weath- er
Carry some emergency equipment, such
as tire chains, a window scraper, a bag of
sand, flares, a small shovel, and jumper cables.
Check the battery and cables. Cold tem-
peratures reduce battery capacity. The
battery must be in good condition to pro-
vide enough power for cold winter starts.
Use an engine oil of proper grade and vis-
cosity for cold weather. Heavy summer oil
will cause harder starting.
Keep the door locks from freezing by
800015

8-20 Driving tips
Hitch harness connector
8. Connect the hitch wire harness’s black
four-pin wire connector to the towing trail-
er’s wire harness.
9. Confirm proper function of the hitch
wire harness by individually activating the
brake, right turn signal, left turn signal,
stop, and parking lights on the trailer.
NOTE
Always disconnect the trailer wire har-
ness before launching or retrieving awatercraft. „
When you do not tow a trailer
y Remove the ball mount from the hitch
receiver tube and insert the receiver cover
onto the hitch receiver tube. y Place the dust cap over the four-pin
connector of the hitch wire harness to pro-
tect against possible damage. y Occasionally lubricate terminals of the
four-pin connector using the terminal
grease.
Trailer towing
Your vehicle is designed and intended to
be used primarily as a passenger-carrying
vehicle. Towing a trailer puts additional
loads on your vehicle’s engine, drivetrain,
brakes, tires and suspension and has an
adverse effect on fuel economy.
If you do decide to tow a trailer, your safe-
ty and satisfaction depend upon proper
use of correct equipment and cautious op-
eration of your vehicle. Seek the advice of
your SUBARU dealer to assist you in pur-
chasing a hitch and other necessary tow-
ing equipment appropriate for your vehi-
cle. In addition, be sure to follow the in-
structions on correct installation and use
provided by the trailer and other towing
equipment manufacturers.
SUBARU assumes no responsibility for in-
juries or vehicle damage that result from
trailer towing equipment, or from any er-
rors or omissions in the instructions ac-
companying such equipment or for your
failure to follow the proper instructions. „ Warranties and maintenance
SUBARU warranties do not apply to vehi-
cle damage or malfunction caused by trail-
er towing. If you use your vehicle to tow a
trailer, more frequent maintenance will be
Do not connect safety chains to part
of the vehicle other than the safety
chain hooks.
800210

Driving tips 8-21
– CONTINUED –
required due to the additional load. (Refer
to “Maintenance schedule under severe
driving conditions” in the “Warranty and
Maintenance Booklet”.)
Under no circumstances should a trailer
be towed with a new vehicle or a vehicle
with any new powertrain component (en-
gine, transmission, differential, wheel
bearings, etc.) for the first 1,000 miles
(1,600 km) of driving. „
Maximum load limits
TTotal trailer weight
Total trailer weight
The total trailer weight (trailer weight plus
its cargo load) must never exceed the
maximum weight indicated in the following table.
Never exceed the maximum load
limits explained in the following. Ex-
ceeding the maximum load limits
could cause personal injury and/or
vehicle damage. y Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
yBefore towing a trailer, check the
trailer total weight, GVW, GAWs
and tongue load. Make sure the
load and its distribution in your
vehicle and trailer are acceptable.
800211

9
In case of emergency
If you park your vehicle in an emergency ........ 9-2
Temporary spare tire .......................................... 9-2
Flat tires .............................................................. 9-4 Changing a flat tire ................................................. 9-4
Tire pressure monitoring system (TPMS) (if equipped) .......................................................... 9-9
Jump starting ...................................................... 9-10 How to jump start ................................................... 9-10
Engine overheating ........... ................................. 9-12
If steam is coming from the engine compartment ......................................................... 9-12
If no steam is coming from the engine compartment ......................................................... 9-12
Towing ................................................................. 9-13 Towing and tie-down hooks .................................. 9-13
Using a flat-bed truck ............................................. 9-16
Towing with all wheels on the ground .................. 9-16
Rear gate (Station wagon) – if the rear gate cannot be unlocked ........................................ 9-17
Maintenance tools .............................................. 9-18 Jack .......................................................................... 9-18
Jack handle ............................................................. 9-18
Other maintenance tools ........................................ 9-19

9-18 In case of emergency
Maintenance tools „Jack
A jack and other maintenance tools are
stored in the tool bucket in the center of
the spare tire located in the trunk or in the
cargo area.
Sedan: To take out the jack and mainte-
nance tools, open the floor cover and re-
move the bucket from the center of the
spare tire. Then, take the jack out of the
bucket. Station wagon:
To take out the jack and
maintenance tools, open the center lid
and remove the bucket from the center of
the spare tire. Then, take the jack out of
the bucket. „ Jack handle
The jack handle is stowed on the back of
the floor cover of the trunk or on the back
of the center lid of the cargo area. Sedan:
Open the floor cover and remove
the jack handle from the back of the floorcover.
Station wagon: Open the center lid, re-
move the left-hand part of the lid, and take
out the jack handle.
900244
900257900258
600117

In case of emergency 9-19
For how to use the jack, refer to “Flat
tires”. „Other maintenance tools
In addition to a jack and a jack handle, the
tool bucket on your vehicle contains the
following maintenance tools.
Screwdriver
Towing hook
Wheel nut wrench
900259

10-4 Appearance care
Corrosion protection
Your SUBARU has been designed and
built to resist corrosi on. Special materials
and protective finishes have been used on
most parts of the vehi cle to help maintain
fine appearance, strength, and reliable
operation. „ Most common causes of cor- rosion
The most common ca uses of corrosion
are:
1. The accumulation of moisture retaining
dirt and debris in body panel sections,
cavities, and other areas.
2. Damage to paint and other protective
coatings caused by gravel and stone
chips or minor accidents.
Corrosion is accelerated on the vehicle
when:
1. It is exposed to road salt or dust control
chemicals, or used in coastal areas where
there is more salt in the air, or in areas
where there is considerable industrial pol-
lution.
2. It is driven in areas of high humidity, es-
pecially when temperatures range just
above freezing.
3. Dampness in certain parts of the vehi-
cle remains for a long time, even though other parts of the vehicle may be dry.
4. High temperatures will cause corrosion
to parts of the vehicle which cannot dry
quickly due to lack of proper ventilation. „
To help prevent corrosion
Wash the vehicle regularly to prevent cor-
rosion of the body and suspension com-
ponents. Also, wash the vehicle promptly
after driving on any of the following surfac- es: y roads that have been salted to prevent
them from freezing in winter y mud, sand, or gravel
y coastal roads
After the winter has ended, it is recom-
mended that the underbody be given a
very thorough washing.
Before the beginning of winter, check the
condition of underbody components, such
as the exhaust system, fuel and brake
lines, brake cables, suspension, steering
system, floor pan, and fenders. If any of
them are found to be rusted, they should
be given an appropriate rust prevention
treatment or should be replaced. Contact
your SUBARU dealer to perform this kind
of maintenance and treatment if you needassistance.
Repair chips and scratches in the paint as soon as you find them.
Check the interior of the vehicle for water
and dirt accumulation under the floor mats
because that could cause corrosion. Oc-
casionally check under the mats to make
sure the area is dry.
Keep your garage dry. Do not park your
vehicle in a damp, poorly ventilated ga-
rage. In such a garage, corrosion can be
caused by dampness. If you wash the ve-
hicle in the garage or put the vehicle into
the garage when wet or covered with
snow, that can cause dampness.
If your vehicle is operated in cold weather
and/or in areas where road salts and other
corrosive materials are used, the door
hinges and locks, trunk lid lock, and hood
latch should be inspected and lubricated
periodically.

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 ......... 11-4
Engine hood ....................................................... 11-4
Engine compartment overview ......................... 11-6 2.5-liter non-turbo models ..................................... 11-6
2.5-liter turbo models ............................................. 11-7
3.0-liter models ....................................................... 11-8
Engine oil ............................................................ 11-9 Checking the oil level ............................................. 11-9
Changing the oil and oil filter ................................ 11-10
Recommended grade and viscosity ..................... 11-12
Recommended grade and viscosity under severe driving conditions ................................................ 11-13
Cooling system .................................................. 11-13 Hose and connections ........................................... 11-14
Engine coolant ........................................................ 11-14
Air cleaner element ............................................ 11-17 Replacing the air cleaner element ......................... 11-17
Spark plugs ......................................................... 11-19 Recommended spark plugs ................................... 11-19
Drive belts ........................................................... 11-20 2.5-liter models ....................................................... 11-20
3.0-liter models ....................................................... 11-20
Manual transmission oil .................................... 11-20 Checking the oil level ............................................. 11-20
Recommended grade and viscosity ..................... 11-21
Automatic transmission flui d ............................ 11-22
Checking the fluid level .......................................... 11-22
Recommended fluid ............................................... 11-23
Front differential gear oil (AT vehicles) ............ 11-23 Checking the oil level ............................................. 11-23
Recommended grade and viscosity ..................... 11-24
Rear differential gear oil .................................... 11-24 Checking the gear oil level .................................... 11-24
Recommended grade and viscosity ..................... 11-26
Power steering fluid ........................................... 11-27 Checking the fluid level .......................................... 11-27
Recommended fluid ............................................... 11-27
Brake fluid ........................................................... 11-28 Checking the fluid level .......................................... 11-28
Recommended brake fluid ..................................... 11-28
Clutch fluid (MT vehicles) .................................. 11-29 Checking the fluid level .......................................... 11-29
Recommended clutch fluid .................................... 11-29
Brake booster ..................................................... 11-30
Brake pedal ......................................................... 11-30 Checking the brake pedal free play ...................... 11-30
Checking the brake pedal reserve distance ......... 11-30
Clutch pedal (Man ual transmission
vehicles) ........................................................... 11-31 Checking the clutch function ................................ 11-31
Checking the clutch pedal free play ..................... 11-31

Maintenance and service
Replacement of brake pad and lining ............... 11-31
Breaking-in of new brake pads and linings ......... 11-32
Parking brake stroke .......................................... 11-32
Tires and wheels ................................................ 11-33 Types of tires .......................................................... 11-33
Tire pressure monitoring system (TPMS) (if equipped) .......................................................... 11-33
Tire inspection ........................................................ 11-34
Tire pressures and wear ........................................ 11-35
Wheel balance ........................................................ 11-37
Wear indicators ....................................................... 11-37
Tire rotation ............................................................. 11-37
Tire replacement ..................................................... 11-38
Wheel replacement ................................................. 11-38
Aluminum wheels ............................................... 11-39
Windshield washer fluid .................................... 11-39
Replacement of wiper blades ............................ 11-41 Windshield wiper blade assembly ........................ 11-41
Windshield wiper blade rubber ............................. 11-42
Rear window wiper blade assembly ..................... 11-42
Rear window wiper blade rubber .......................... 11-43
Battery ................................................................. 11-44
Fuses ................................................................... 11-45
Main fuse ............................................................. 11-47
Installation of accessories ................................ 11-47
Replacing bulbs .................................................. 11-48 Headlight ................................................................. 11-49
Parking light ............................................................ 11-50
Front turn signal light ............................................ 11-50
Front fog light (if equipped) ................................... 11-50 Rear combination lights ......................................... 11-51
Backup light (Station wagon) ................................ 11-52
License plate light .................................................. 11-53
Dome light ............................................................... 11-53
Map light .................................................................. 11-54
Door step light ........................................................ 11-54
Cargo area light (Station wa
gon) .......................... 11-55
Trunk light (Sedan) ................................................. 11-55
High mount stop light (Sedan) .............................. 11-56