Kia Rio: Suspension System

Kia Rio 2017-2020 YB Service 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
Wheel	Aluminum	6.0J * 15
		6.0J * 16
		6.5J * 17
	Steel	6.0J * 15
Tire		185/65 R15
		195/55 R16
		205/45 R17
		205/55 R17
Tire pressure	185/65 R15	230 - 237 kPa (33 - 34 psi)
	195/55 R16	230 - 237 kPa (33 - 34 psi)
	205/45 R17	230 - 237 kPa (33 - 34 psi)
	T125/80 D15	420 - 427 kPa (60 - 61 psi)

Wheel Alignment

Item		Specification
		Front		Rear
		EU/AUS	GEN	EU/AUS	GEN
Toe-in	Individual	0.075°±0.1°	0.075°±0.1°	0.15°± 0.15°	0.11°+ 0.19 -0.11°
Toe-in	Total	0.15°±0.2°	0.15°±0.2°	0.3° ± 0.3°	0.22° ± 0.3°
Camber angle		-0.5°±0.5°	-0.4°±0.5°	- 1.5° ± 0.5°	- 1.5° ± 0.5°
Caster angle		4.65°±0.5°	4.54°± 0.5°	-	-
King-pin angle		13.24°±0.5°	13.0°±0.5°	-	-
Ride height		369 ± 10mm (14.52 ± 0.39 in.)	379 ± 10mm (14.92 ± 0.39 in.)	370 ± 10mm (14.56 ± 0.39 in.)	380 ± 10mm (14.96 ± 0.39 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	98.1 - 117.7	10.0 -12.0	72.3 - 86.8
Stabilizer bar to stabilizer link	98.1 - 117.7	10.0 - 12.0	72.3 - 86.8
Stabilizer bar to sub frame	44.1 - 53.9	4.5 - 5.5	32.5 - 39.8
Tie rod end ball joint nut	22.6 - 33.3	2.3 - 3.4	16.6 - 24.5
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
Hub nuts	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Shock absorber to body	49.0 - 63.7	5.0 - 6.5	36.2 - 47.0
Shock absorber to torsion beam axle	98.1 - 117.7	10.0 - 12.0	72.3 - 86.8
Torsion beam axle to frame	117.7 - 137.3	12.0 - 14.0	86.8 - 101.3
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
Wheel speed sensor cable & parking brake hose bracket	8.8 - 13.7	0.9 - 1.4	6.5 - 10.7

Special service tools

Special Service Tools

Tool Name / Number	Illustration	Description
Lower arm ball joint remover 0K545-A9100		Used for removal of front lower arm from front axle
Ball joint remover 09568-2J100		Used for removal of ball joint
Shock absorber lock nut removal tool 09546-3X100		Used for remove the shock absorber lock nut.
CTBA bush remover & installer 09551-AL100		Used for removing / installing CTBA bush

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 Hub - Carrier

Components and components location Components [Drum Type] 1. Torsion beam axle 2. Rear spring 3. Rear drum brake disc [Disc Type ...

Front Suspension System

Components and components location Components Location 1. Gear box 2. Stabilizer bar 3. Driveshaft 4. Stabilizer link 5. Shock absorber 6. Front axle ...

Other information:

Kia Rio 2017-2020 YB Owners Manual: Front seat adjustment

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Kia Rio 2017-2020 YB Owners Manual: Engine compartment fuse replacement

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