2012 SSANGYONG NEW ACTYON SPORTS Service Manual

13-4
3. TROUBLE DIAGNOSIS
Problem Possible Cause Action
Uneven tire wear Incorrect tire pressure Adjust
Unbalanced wheel Adjust
Improper location change of tire Change tire location in
specified interval
Incorrect toe adjustmen Adjust
Incorrect wheel bearing preload adjustment Adjust
Malfunction of brake syste Adjust
Tire squeal, vibration Too low tire pressure Adjust
Unbalanced wheel or tire Adjust
Heavy vibration of wheel or tire Uneven tire wear
Uneven tire wear Check and adjust
Premature tire wear Too high tire pressure Adjust
Fast driving with low pressure tire Adjust
Overload Adjust

13-54170-09
Symptom Possible Cause
Wear at tread edge
Insufficient tire inflation
pressure or overload
Wear at tread center
Excessive tire inflation pressure
Excessive wear in the outer side of
the tread than in the inner side
Excessive camber or deflection
of knuckle arm
Excessive wear in the inner side of
the tread than in the outer side
Insufficient camber or
deflection of knuckle arm
1) Appearance Check
4. INSPECTION
InsideOutside
Inside
Outside
InsideOutside
Inside
Outside

13-6
Symptom Possible Cause
Blade type wear from outer side
toward inner side of the tread
Excessive toe-in,
Deflection of knuckle arm,
Difference in tie rod length
between left and right sides
Blade type wear from inner side
toward outer side of the tread
Excessive toe-in,
Deflection of knuckle arm,
Difference in tie rod length
between left and right sides
Corrugation wear of tread
Poor wheel balance,
Loose wheel bearing,
poor wheel alignment
InsideOutside
Inside
Outside
Inside
Outside

13-74170-09
2) Typical Inspection
Tread
Inspect the tread condition on the tire
surface and various damages resulting
from the foreign materials, crack, stone or
nail etc. If there is any damage in the tire,
repair or replace it. 1.
Wear limit 2.
Measure the depth of the tire tread. If
the depth of the tread is below the
specified value, replace the tire -
You can see the protruded part in the
groove at the point with mark "▲", which
is the indicator of the tread wear limit.
The limit of the tread wear for all season
tires are 1.6 mm, which is the same as
the general tires, but the wear limit mark
is indicated as '↓'. -
-
Wear limit 1.6 mm
Higher than recommended pressure can cause hard ride, tire bruising or damage and rapid
tread wear at the center of the tire.
Excessive tire wear over the limit of the tread wear (1.6 mm) can cause lower sliding friction
due to longer braking distance, easy tire burst by foreign materials, tire hydroplaning, and
tough brake and steering wheel handling. -
-

13-8
Measure the dial runout and lateral
runout on both the inboard and
outboard rim flanges. - Tire inflation pressure -
Check the tire inflation pressure by
inspecting the tread width. -
Specified value 2.66 mm
Wheel runout
If wheel runout or tire runout is excessive,
it could result in abnormal wear of the tire.
Measure the runout with a dial gauge. 4.
Measure free radial runout on the tire
tread. -
Specified value 2.03 mm
If any measurement exceeds the above
specifications, replace the applicable
tires or wheels -Tire inflation pressure 3.
Specified value 32 psi
Maintaining the specified tire ressure is
essential for comfortable riding, driving
safety, and long tire life. Incorrect inflation
pressures will increase tire wear and will
impair safety, vehicle handling,
comfortable driving and fuel economy.
Always make sure that the tire inflation
pressure is correct.
Proper
inflationProper
inflationOver
inflation
Tread width Tread width Tread width

13-94170-09
Wheel balance 5.
Check the wheel balance when the
wheel is unbalanced or the tire is
repaired.
The total weight of the wheel weight
should not exceed 150 g.
Ensure that the balance weight installed
is not projected over 3mm from the
wheel surface.
Use the specified aluminum wheel
balance weights for aluminum wheels.
Weight balance can be added by 5 g.
There are two types of weight balance,
tape type and adhesion type. -
-
-
-
-
-
Make sure to read the manual of the
manufacturer thoroughly before using
wheel balance tester. -
Change tire location
To avoid uneven wear of tires and to
prolong tire life, inspect and rotate your
tires every 5,000 km. 6.
Mixing tires could cause to lose control while driving. Be sure to use the same size and type
tires of the same manufacturer on all wheels. -

13-10
5. COMPONENTS
Alloy wheel
Alloy wheel
Steel wheel
Cap assembly - wheel
Cap assembly - wheel
Nut (127.4 ~ 156.8 Nm)
Tire 1.
2.
3.
6.
7.
8.
9.

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1. OVERVIEW
A radial tire uses a cord angle of 90 degrees. That is, the cord material runs in a radial or direct
line from one bead to the other across the tread. In addition, a radial tire has a belt overwrap
under the tread surface to provide greater structural stability. The belt overwrap of a radial tire
distortion while the radial structure enables high speed driving.
Tire supports the weight of the vehicle, reduces the impact from the road and at the same time,
transmits the power to propel, brake and steer on the road. It also functions to maintain a
<009d008c008f0090008a0093008c02c5009a004700940096009d008c0094008c0095009b0055004700700095004700960099008b008c00990047009b00960047008a0096009400970093008c009b008c0047009a009c008a008f0047009b0088009a009200
9a0053004700880047009b00900099008c00470094009c009a>t be structured to be a resilient
vessel of air.
There is wear limit mark on the tire, which protrudes as a strip shape located approximately 1.6
mm from the groove bottom. This wear limit mark is not seen from the outside so there is
additional "▲" mark on the shoulder to let the driver find the wear mark easily. To measure the tire
groove depth, measure at any point other than the point which has a wear limit mark.
The tire is worn unevenly according to the driver's driving habit, improper servicing, low tire
inflation pressure, changed tire location, etc.