Hyundai i-30: Front Suspension System / Front Strut Assembly

Hyundai i30 (PD) 2018-2024 Service Manual / Suspension System (NON-ECS) / Front Suspension System / Front Strut Assembly

Components and components location
Components

1. Strut assembly
2. Lock nut
3. Insulator
4. Strut bearing & Spring upper pad
5. Bumper rubber
6. Dust cover
7. Coli spring
8. Spring lower pad

Repair procedures
Removal
1.
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the front wheel and tire (A) from the front hub.
Tightening torque :
107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)

  
Be careful not to damage the hub bolts when removing the front wheel and tire (A).
3.
Loosen the mounting holt and then remove the brake hose from the strut assembly.
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

4.
Loosen the mounting holt and then remove the wheel speed sensor cable from the strut assembly.
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

5.
Disconnect the stabilizer link with the front strut assembly after loosening the nut (A).
Tightening torque :
98.1 - 117.7 N.m (10.0 - 12.0 kgf.m, 72.3 - 86.8 lb-ft)

  
When loosening the nut (A), fix the outer hexagon of stabilizer bar link.
Be careful not to damage the stabilizer link boots.
6.
Remove the cowl top cover.
(Refer to Body - "Cowl Top Cover")
7.
Loosen the upper strut mounting nut (A).
Tightening torque :
58.8 - 73.5 N.m (6.0 - 7.5 kgf.m, 43.4 - 54.2 lb-ft)

8.
Disconnect the front strut assembly (A) with the front axle (B) by loosening the bolts & nuts.
Tightening torque :
156.9 - 176.5 N.m (16.0 - 18.0 kgf.m, 115.7 - 130.2 lb-ft)

9.
To install, reverse the removal procedure.
Disassembly
  
When compressing the coil spring, be cautious as there may be corrosion due to damage to the coil spring painting.
In order to avoid such painting damage, compress by putting over the waste hose, etc. (Refer to the picture below.)

1.
Using spring comperssor, compress the coil spring (A)

2.
Using the special tool (09546-3X100), remove the self locking nut.

3.
Disassembly the strut assembly

Inspection
1.
Check the strut bearing for wear and damage.
2.
Check the spring upper and lower pad for damage and deterioration.
3.
Compress and extend the piston rod (A) and check that there is no abnormal resistance or unusual sound during operation.

Disposal
1.
Fully extend the piston rod.
2.
Drill a hole on the (A) section to remove gas from the cylinder.

  
The gas coming out is harmless, but be careful of chips that may fly when drilling.
Be sure to wear safety goggles or eye protection when performing this task.
Reassembly
1.
To reassembly, reverse the disassembly procedure.
2.
Using the spring compressor,compress the coil spring (A).

3.
Using the special tool (09546-3X100), install the self locking nut.
Tightening torque :
58.8 - 68.6 N.m (6.0 - 7.0 kgf.m, 43.4 - 50.6 lb-ft)

  
Do not reuse the self locking nut.

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