Kia Picanto: Suspension System

Kia Picanto JA 2017-2024 Service & Repair Manual / Suspension System

Specifications

Specification

Front Suspension

Item	Specification
Suspension type	MacPherson Strut
Shock absorber Type	General Valve

Rear Suspension

Item	Specification
Suspension type	Couple Torsion Beam Axle
Shock absorber Type	General Valve

Wheel & Tire

Item		Specification
		Front	Rear
Wheel	Aluminum	5.5J * 14
		6.0J * 15
		6.5J * 16
	Steel	4.5J * 13
		5.5J * 14
Tire		155/80 R13
		175/65 R14
		185/55 R15
		195/45 R16
		T115/70 D15
Tire pressure	155/80 R13	230 kPa (33 psi)	210 kPa (30 psi)
	175/65 R14
	185/55 R15
	195/45 R16
	175/65 R14 (Eco pack)	250 kPa (36 psi)
	T115/70 D15	420 kPa (60 psi)

Europe, Australia

Item		Specification
		Front	Rear
Toe-in	Individual	0.075° ± 0.1°	0.15° ± 0.15°
	Total	0.15° ± 0.2°	0.30° ± 0.30°
Camber angle		-0.5° ± 0.5°	-1.5° ± 0.5°
Caster angle		4.04° ± 0.5°	-
King-pin angle		13.44° ± 0.5°	-
Ride height		347 ± 10 mm (13.6614 ± 0.3937 in.)	353 ± 10 mm (13.8976 ± 0.3937 in.)

General, Middle East, Russia, Europe (High suspension)

Item		Specification
		Front	Rear
Toe-in	Individual	0.075° ± 0.1°	0.11° ± 0.15°
	Total	0.15° ± 0.2°	0.23° ± 0.30°
Camber angle		-0.33° ± 0.5°	-1.5° ± 0.5°
Caster angle		3.90° ± 0.5°	-
King-pin angle		13.16° ± 0.5°	-
Ride height		357 ± 10 mm (14.0551 ± 0.3937 in.)	363 ± 10 mm (14.2913 ± 0.3937 in.)

SX Trim (Export)

Item		Specification
		Front	Rear
Toe-in	Individual	0.075° ± 0.1°	0.09° ± 0.15°
	Total	0.15° ± 0.2°	0.19° ± 0.30°
Camber angle		-0.24° ± 0.5°	-1.5° ± 0.5°
Caster angle		3.83° ± 0.5°	-
King-pin angle		13.02° ± 0.5°	-
Ride height		358 ± 10 mm (14.0945 ± 0.3937 in.)	362 ± 10 mm (14.2520 ± 0.3937 in.)

Tightening Torques

Front Suspension

Item	Tightening torque (kgf·m)
Item	N·m	kgf·m	lb·ft
Tire wheel hub nuts	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Strut assembly to knuckle	98.1 - 117.7	10.0 - 12.0	72.3 - 86.8
Strut assembly lock nut	49.0 - 58.8	5.0 - 6.0	36.2 - 43.4
Lower arm to sub frame (Front)	117.7 - 137.3	12.0 - 14.0	86.8 - 101.3
Lower arm to sub frame (Rear)	156.9 - 176.5	16.0 - 18.0	115.7 - 130.2
Lower arm to knuckle	58.8 - 70.6	6.0 -7.2	43.4 - 52.1
Stabilizer link to strut assembly	49.0 - 58.8	5.0 - 6.0	36.2 - 43.4
Stabilizer bar to stabilizer link	49.0 - 58.8	5.0 - 6.0	36.2 - 43.4
Stabilizer bar to sub frame	44.1 - 53.9	4.5 - 5.5	32.5 - 39.8
Tie rod end ball joint nut	24.5 - 34.3	2.5 - 3.5	18.1 - 25.3
Universal joint to pinion of steering gear	32.4 - 37.3	3.3 - 3.8	23.9 - 27.5
Steering gear box to sub frame	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
Sub frame mounting nuts (Front)	176.5 - 196.1	18.0 - 20.0	130.2 - 144.7
Sub frame mounting bolts (Rear)	176.5 - 196.1	18.0 - 20.0	130.2 - 144.7

Rear Suspension

Item	Tightening torque (kgf·m)
Item	N·m	kgf·m	lb·ft
Tire wheel hub nuts	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Shock absorber to body	21.6 - 31.4	2.2 - 3.2	15.9 - 23.1
Shock absorber to torsion beam axle	98.1 - 117.7	10.0 - 12.0	72.3 - 86.8
Torsion beam axle to frame	98.1 - 117.7	10.0 - 12.0	72.3 - 86.8
Torsion beam axle to rear axle	49.0 - 58.8	5.0 - 6.0	36.2 - 43.4
Torsion beam axle to brake caliper	63.7 - 73.5	6.5 - 7.5	47.0 - 54.2
Disc fixing screw	4.9 - 5.9	0.5 - 0.6	3.6 - 4.3

Special service tools

Special Service Tools

Tool Name / Number	Illustration	Description
Lower arm ball joint remover 0K545-A9100		Used for removing the ball joint
Ball joint puller 09568-1S100		Remove the ball joint
Shock absorber lock nut removal tool 09546-3X100		Used for remove the shock absorber lock nut.

Troubleshooting

Symptom	Expected cause	Countermeasure
Heavy weight feeling on steering wheel	Faulty on front wheel alignment	Adjust or repair
	Over rotation resistance of lower arm ball joint	Replace
	Over rotation resistance of strut bearing	Replace
	Too low amount of Tire air pressure	Adjust
Steering wheel recovery trouble	Faulty on front wheel alignment	Adjust or repair
Noise or ride comfort trouble	Faulty on wheel alignment	Adjust or repair
	Inappropriated tire air pressure	Adjust
	Faulty function of shock absorber	Replace
	Damaged coil spring	Replace
	Damaged stabilizer	Replace
	Damaged lower arm bushing	Replace
	Stabilizer link fixing nut got loosen	Retighten
	Damaged stabilizer link (dust cover tearing, ring broke away)	Replace
Abnormal worned out of tire	Faulty wheel alignment	Adjust or repair
Abnormal worned out of tire	Inappropriated tire air pressure	Adjust
Unstable steering wheel	Front wheel alignment trouble	Adjust or repair
	Lower arm ball joint turning resistance is too small	Replace
	Damaged lower arm bushing	Replace
Vehicle pushed aside phenomenon	Wheel alignment trouble	Adjust or repair
	Unbalance of right/left tire	Adjust or replace
	Damaged or transformed lower arm bushing	Replace
	Damaged coil spring	Replace
Steering wheel juddering	Front wheel alignment trouble	Adjust or repair
	Wheel balance trouble	Adjust or repair
	Lower are ball joint turning resistance is too much or too small	Replace
	Damaged stabilizer	Replace
	Damaged lower arm bushing	Replace
	Shock absorber operating trouble	Replace
	Coil spring trouble	Replace

Strange sound type from under body by parts

Conditions for occurrence	Strange sound on uneven ground
Parts	Step bar link	Step bar bush	Lower arm ball joint	Strut insulator
Trouble area
Type of strange sound	Rattling, Creaking noise	Squeaking noise	Clunking, Knocking noise	Clicking, Creaking noise
Occurring area	Under part	Under part	Under part	Upper part
Driving speed	20 - 40 ㎞/h (12.4 - 24.9 m/h)	While low speed driving (20 - 40 ㎞/h (12.4 - 24.9 m/h))	20 - 40 ㎞/h (12.4 - 24.9 m/h)	-
Condition of road	Uneven road / bump	Uneven road / bump	Uneven road / bump	Uneven road / tough road
Reason	Loosen / leakage (teared down) / corrosion	Separation of bar and bush / slip	Loosen / leakage (teared down) / corrosion	Tightened (decrease torque) and interference

Conditions for occurrence	Strange sound while going through uneven road / tough road
Parts	Strut / Shock absorber	Strut / Shock absorber	Strut / Shock absorber	Strut / Shock absorber
Trouble area
Type of strange sound	Rubbing noise	Clicking, Creaking noise	Rubbing noise	Clicking noise
Occurring area	Upper part	Upper part	Upper part (rear)	Upper part (rear)
Driving speed	15 - 25 ㎞/h (9.3 - 15.5 m/h)	15 - 25 ㎞/h (9.3 - 15.5 m/h)	15 - 40 ㎞/h (9.3 - 24.9 m/h)	30 - 50 ㎞/h (18.6 - 31.1 m/h)
Condition of road	Uneven road	Uneven road	Uneven road and tough road	Tough road
Reason	Friction sound from piston load and bumper rubber inner side	Rolled down bumper rubber (tapping sound of bumper rubber upper part and insulator under part)	Adhesion trouble of upper bracket rubber	Suspension tuning trouble (damping force, rubber characteristic)

Conditions for occurrence	Strange sound on uneven road	Strange sound while steering		Strange sound while driving
Parts	Lower arm "G" bush	Cross member bush	Strut bearing	Wheel / Hub bearing
Trouble area
Type of strange sound	Rubbing noise	Clicking noise	Clicking noise	Roaring noise
Occurring area	Under part	Under part	Upper part	Lower and side part
Driving speed	10 - 40 ㎞/h (6.2 - 24.9 m/h)	-	-	20 - 60 ㎞/h (12.4 - 37.3 m/h)
Condition of road	Bump / tough road	Even road	Even road	Even road
Reason	Dropped off / fallen off	Dropped off / fallen off	Grease leakage	Damaged from outer impact, foreign substance inflow

Wheel and tire diagnosis

Wheel /tire noise, vibration and harshness concerns are directly related to vehicle speed and are not generally affected by acceleration, coasting or deceleration. Also, out-of-balance wheel and tires can vibrate at more than one speed. A vibration that is affected by the engine rpm, or is eliminated by placing the transmission in Neutral is not related to the tire and wheel. As a general rule, tire and wheel vibrations felt in the steering wheel are related to the front tire and wheel assemblies. Vibrations felt in the seat or floor are related to the rear tire and wheel assemblies. This can initially isolate a concern to the front or rear.

Careful attention must be paid to the tire and wheels. There are several symptoms that can be caused by damaged or worn tire and wheel. Perform a careful visual inspection of the tires and wheel assemblies. Spin the tires slowly and watch for signs of lateral or radial runout. Refer to the tire wear chart to determine the tire wear conditions and actions

Wheel and tire diagnosis

Rapid wear at the center

Rapid wear at both shoulders

Wear at one shoulder

•	Center-tread down to fabric due to excessively over inflated tires

•	Lack of rotation

•	Excessive toe on drive wheels

•	Heavy acceleration on drive

•	Under-inflated tires

•	Worn suspension components

•	Excessive cornering speeds

•	Lack of rotation

•	Toe adjustment out of specification

•	Camber out of specification

•	Damaged strut

•	Damaged lower arm

Partial wear

Feathered edge

Wear pattern

•	Caused by irregular burrs on brake drums

•	Toe adjustment out of specification

•	Damaged or worn tie rods

•	Damaged knuckle

•	Excessive toe on non-drive wheels

•	Lack of rotation

Front Suspension System

Rear Suspension System

Tires/Wheels

Tire Pressure Monitoring System

Rear Axle Assembly

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Front Suspension System

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Kia Picanto JA 2017-2024 Service & Repair Manual: Brake System

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