Kia 553504D100 Rear Coil Spring

If there are visible signs of strut or coil spring deterioration including leakage of the fluid, loss of a damping scheme, or physical damage, give all the options priority before beginning any work as strut/shock absorber assemblies are non-serviceable and need replacement if there is a problem. When strut assemblies contain springs, they may be obtained on exchange basis which can be convenient; therefore, it is worth comparing the cost and availability of the parts before taking the vehicle apart. To disassemble, to remove the strut and spring assembly, fix it in a wooden vise or put pieces of wood and rags in between the vise jaws and the assembly, and to not overtighten the bolts. Mount a spring compressor as per the manufacturer's procedure to free the pressing pressure from the upper spring seat that can be checked by jerking the spring. To check the bearing, unscrew the damper shaft nut and then remove the nut and suspension support After that check it and if required replace it. Inspect the rubber part of the suspension support to see that it is not disintegrating and if possible replace the part. Check the outer condition of the upper spring seat mounted on the damper shaft for presence of cracks or hardness and if it is found to be worn out, change it, followed by the removal of the upper insulator. Have the ends pointed away from your body and lift the compressed spring from the assembly carefully and put it aside. Pull the rubber bumper and slide it off the damper shaft, then inspect the lower insulator to see if it has deteriorated; if so, install a new one. In reassembly of the component, if the lower insulator is being replaced, then position the same with the dropped portion blending at the lowest point of the seat, next, insert the dampner rod and then the rubber bumper. Unscrew the spring seat and put the upper insulator followed by the spring seat aligning the flats on the damper shaft with those in the spring seat; place the coil spring on the lower insulator end fitting it into the lowest part. When the pinned holes of the upper spring seat are in aligned with the ones of the lower, fit the damper nut and tighten it to the recommended torque while the holes in the spring seats are aligned and finally, before fitting the strut/spring assembly, release the spring compressor tool.

Raise the vehicle and support it securely on jackstands, blocking the front tires to prevent movement. For models from 2005 and earlier, place a floor jack under the axle beam and raise it slightly. Remove the Panhard rod-to-chassis bolt and the shock absorber lower mounting bolt, then detach the rear brake hose bracket fastener, allowing the hose to hang freely. Slowly lower the floor jack until each spring can be removed from its seat, and then take out the lower spring seat insulator. For installation, place the lower spring seat insulator onto the spring seat, insert the spring between the upper seat in the body and the lower seat on the axle beam, and use the jack to raise the axle beam and compress the spring until the shock absorber lower mounting bolts can be installed without tightening them yet. Connect the Panhard rod to the chassis and install the bolt without tightening it. The remainder of the installation follows the reverse order of removal. Lower the vehicle to the floor and, with the full weight on the wheels, tighten the shock absorber lower mounting bolts and the Panhard rod bolt to the specified torque values. For models from 2006 and later, support the lower control arm with a floor jack under the coil spring area, loosen the lower control arm-to-subframe nut/pivot bolt, and unbolt the lower control arm from the rear knuckle. Support the lower control arm with a floor jack placed underneath the spring seat, then carefully lower the arm until the spring can be removed from the seat. Inspect the coil spring for chips and distortion, checking the insulators for deterioration and replacing parts as necessary. Installation is the reverse of removal; raise the lower control arm with the floor jack to simulate normal ride height, then tighten the lower control arm fasteners and the lug nuts to the specified torque. The control arm bolt/nut should be tightened with the vehicle at normal ride height, which can be achieved after assembly by lowering the vehicle to the ground and bouncing it a few times, or by simulating normal ride height with the floor jack.