Kia optima suspension. How is the diagnosis of running Kia Optima. service for Kia and Hyundai
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24.08.2018
Now we will change the front struts of Kia Optima with a mileage of 50,000 kilometers. Oddly enough, they ran. In principle, they are still holding, and their condition did not affect the behavior of the car during movement. During the seasonal replacement of rubber, oil smudges were noticed on the shock absorber housings, so it was decided to replace them.
As you know, the Optima front suspension is a standard MacPherson strut with a stabilizer. roll stability and support bearings with which the rods are attached to the car body. The service life of shock absorbers is directly affected by the condition of the roadway, as well as the condition of the rubber anthers that close the rods from dust and water. Typically, racks on such machines serve up to 80 - 100 thousand kilometers, but on ours they have already flowed for fifty when operating in a small city with an average quality of roads. This is not bad, considering that sometimes one strong blow can be enough, for example, when a wheel hits a pothole, so that the shock absorber drips.
Replacing the front struts of the white Optima
What racks to put?
To choose shock absorbers for Kia Optima, you need to know their numbers. Further, according to the original part codes, you can also select substitutes for a car of any year of manufacture. Also, when repairing racks, you should immediately pay attention to the condition of the anthers. If they are damaged and have significant signs of wear, they must be replaced, otherwise the new racks will not last long. The A-pillar supports also require attention, and they are often changed without even waiting for them to knock. This is explained by simple logic: they are unlikely to survive one more shock absorber, and disassembling the front suspension again to replace only them is time-consuming and money-consuming.
Front shock absorber codes for cars from 2010 to 2013:
- Left - 54651-2T022;
- Right - 54661-2T022.
- 54651-2T410 (left);
- 54661-2T410 (Right).
Spare parts for the pre-styling model and the restyled one differ in the location of the mount for the stabilizer bar. For a correct and accurate selection, you need to search the catalogs of original parts or substitutes using the VIN number of the car, since for cars, for example, 2012, different A-pillars were used.
New racks for Optima
Shock absorbers rarely fail at the same time, on cars that move on right-hand traffic roads, most often ammo starts to flow first with right side. At the same time, it is recommended to change them in pairs, since the operation of the struts affects handling, and the uneven counteraction to body roll in corners can lead to a decrease in the predictability of the behavior of the car.
Supports racks Kia Optima right / left .:
- 36553 - Mapco;
- 35041 - SKF VKD;
Replacement process
We put the car on a flat surface on the handbrake. Put under the rear wheels wheel chocks. We remove the wheel. Loosen the stabilizer bar nut. We unscrew the bolts of the shock absorber in the steering knuckle.
We change the rack
We open the hood. We unscrew the three nuts with which the Optima front struts are attached to the body glasses. We remove the rack assembly, for this you may have to lower it a little rounded fist down to be able to release it.
Now the entire structure must be disassembled to remove the thrust bearing, boot and spring. All these parts, if they are in poor condition, it is better to replace them as well. Rubber boots can be torn. Because of this, dirt and water can get on the stem and the shock absorber will quickly lose its tightness and become unusable. Optima's front springs are not very susceptible to sagging and live much longer than shock absorbers, so if there are no questions about them, you can put them back. Supports are generally advised to change always.
Finally disassembled
To disassemble the rack, you need to compress the spring and unscrew the stem nut. Couplings must be used to compress the spring. Care must be taken when handling them, as breaking them can be very dangerous. We collect everything in the reverse order.
It is clear that any node running kia must be in good condition. This is especially true for the suspension, because unlike the engine, which can fail and Kia Optima simply will not go further, the breakdown of some suspension elements while driving can lead to a serious accident.1. In addition to the obvious safety, the Kia Optima chassis is responsible for comfortable ride and good handling. The most dangerous thing is that in this case there will be a high probability of loss of control, with the next collision with an obstacle that has arisen on the road. Only regular diagnostics of the Kia Optima chassis will help to avoid such a situation.
Diagnostics of the Kia Optima chassis includes checking the elements:
- springs and shock absorbers;
- levers and supports (bearings on top, silent blocks on the bottom);
- stabilizer bushings Kia Optima;
- steering rods and rack;
- wheel bearings;
- SHRUS.
Diagnostics of the running Kia Optima should be carried out regularly, even without any hint of a malfunction. It is better to do this on a lift, but it is also possible on an ordinary overpass or viewing hole.
3. It is important to remember how the Kia Optima behaves in good condition, then any malfunction in the future will be obvious. To understand that something is wrong with the car, you do not need to be experienced driver especially as an auto mechanic.
Most often, the following symptoms of malfunctions of the Kia Optima chassis occur:
- the sudden appearance of noise, knocking, rattling of the Kia Optima chassis, which can either disappear or remain even on a completely flat road;
- too large rolls when cornering and noticeable rocking of the body when passing bumps or when braking;
- arbitrary steering to the side, Kia Optima leads away when driving straight;
- uneven tire wear.
If a crunch is heard, especially when turning or sharp acceleration Kia Optima, it can be said with almost complete certainty that the reason lies in the malfunction of the Kia Optima SHRUS, the so-called grenade. A creak most often occurs after replacing the stabilizer bushings, often this indicates a poor-quality bushing.
5. If the Kia Optima began to divert to the side, more often this happens after a hard passage of pits and potholes, then you may have to do a wheel alignment (Kia Optima wheel alignment). At best, this will eliminate the trouble, at worst, upon impact, something could bend, starting from the tie rod and ending with the steering knuckle.
If at least one of these signs occurs, it is necessary to diagnose the running Kia Optima as soon as possible. Even the rules expressly prohibit operation with a faulty suspension, not to mention the fact that it is simply dangerous.
6. A Kia Optima suspension bushing, which is not so expensive, if not replaced in time, can lead to breakage of the lever, with a price of a hundred dollars. Many drivers drive without paying attention to the sounds that have appeared in the Kia Optima chassis, and drive until the sound becomes completely critical, or until something simply falls off, this approach is simply absurd.
7. Periodic visual inspection of the Kia Optima chassis will help save money, after all, if a cracked anther or a cover is found in time, and a prompt replacement is made, then the element that was protected by the anther will last longer. If, when examining the Kia Optima, an already torn anther was found, then you can be sure that this suspension element will soon need to be replaced.
After checking all the anthers, you should proceed to the diagnosis of the front suspension elements of the Kia Optima. The front suspension is more complex than the rear, it is subject to heavy loads, as a result, it breaks much more often. First, we inspect the Kia Optima shock absorbers, they should not have dents or oil leaks. You can also try to swing the shock absorber to the sides, the swing amplitude should be insignificant.
But the easiest way to check the health of this suspension element is to swing the Kia Optima by pressing the corner where the diagnosed shock absorber is located to the ground. If, after pressing, Kia Optima, returning to its original state, continued to rock up and down, then this indicates a malfunction of the shock absorber.
8. Next, the suspension springs of the Kia Optima are inspected, often their turns break off, so you need to inspect them for cracks and the integrity of all turns. But here you can also determine the functionality of the springs without looking under the car. To do this, you just need to pay attention to ground clearance Kia Optima, if the car has become noticeably lower, then this already indicates a malfunction of the springs, they have sagged and can no longer properly perform their function.
9. Ball and silent blocks are checked only from the bottom of the Kia Optima. To diagnose them, it is better to use some kind of metal lever to make it easier to check everything for backlash, they should not be in a working car. In the same way, the stabilizer mounts and traction of the Kia Optima are checked. To check the wheel bearing, you need to shake the wheel, if there is play, then this indicates a poor condition of the bearing.
Getting Started tuning kia Optima, you should understand that improving this car can cost a lot of money. Especially when it comes to the refinement of details from engine compartment cars 2013–2014 Therefore, it is best to upgrade those elements of the Optima that require it in the first place. So you will achieve excellent results by spending the minimum amount.
1 Improving exhaust by removing the catalyst
The Optima, like most other business class cars, is equipped with a direct-flow exhaust system. The design of the latter contains a catalyst - an element with a short service life, but at a very solid price. A catalyst is a kind of filter whose role is to convert toxic gases into harmless ones. Many experts are sure that the presence of a catalyst in cars of 2013–2104 is not at all necessary, since starting from 2010, most car manufacturers began to use updated front mufflers. They not only suppress sound, but also recycle harmful emissions from cars. That is why many mechanics consider the catalyst to be the result of Euro-3 standards and assign it a rather small role in exhaust system auto.
Also, this element serves as another obstacle to the air that the engine of the car throws out. Therefore, we will make it easier for the recycled vapors to exit, which will increase the Kia's power by 10-15 hp. from. In addition, the Optima engine will start to sound a little louder and more aggressive, which fans of street racing will definitely appreciate. The only disadvantage of such tuning is that with the removal of the catalyst, the cooling of the emitted vapors will disappear, which will adversely affect other parts of the exhaust kia systems. Fortunately, it is not difficult to solve this problem by installing a flame arrester instead of a regular part. To remove the catalyst in the Optima exhaust system, we need to prepare the following tools:
- keys set;
- screwdrivers;
- welding machine;
- grinder;
- flame arrester.
First you need to install the Optima on the inspection hole, so it will be much easier to inspect the car and dismantle the exhaust pipe. After that, we take the keys and begin to remove the Kia downpipe. In turn, unscrew the fasteners holding the catalyst, front muffler, middle pipe and rear muffler. Next, carefully detach the entire structure and set it aside.
The next step is to cut out the catalyst. To do this, we install a small solid object under the exhaust pipe and cut off the part of the pipe that connects to the catalyst with a grinder. We put the cut piece aside and start sawing off the catalyst from the other side. After that, we weld a flame arrester instead of a catalyst. The last stage of tuning will be installation exhaust pipe back to the bottom of the Kia with a mandatory check of each fastener.
2 Replacing the pillars in the front of the Optima
After finalizing the Kia exhaust, you can begin to improve the suspension of the car. Since the Korean model is front-wheel drive, the racks in the front of the car are most susceptible to wear. As practice shows, parts from Kia Carnival 2013–2014 They are designed for more overall cars, due to which they can withstand large loads. In addition, the Carnival struts are much better springy, which will make the operation of the Optima much more comfortable even off-road. To tune a car, we need to prepare:
- pliers;
- keys set;
- mounting blade;
- hammer;
- marker;
- jack.
We raise the car with a jack, after which we remove the rubber plug from the upper wheel support. Then, holding the stem securely, loosen the Kia tie rod connection. Remove the steering rod end from the steering knuckle. We turn the steering wheel in the opposite direction from the tip, and pull out the cotter pin with pliers. We unscrew the nuts securing the steering tip and pull the “finger” out of the lever with a puller. Next, we do not completely unscrew the nut from the tie rod thrust, insert the blade into the thrust and hit the end of the rack lever with a hammer.
Next, you need to mark the position of the upper adjustment bolt, and then knock out its nut. In the same way, we knock out the bottom bolt. Then we take the steering knuckle to the side, without pulling brake hose. Unscrew the fixing nuts of the upper support and remove suspension strut Kia. After that, we install a new part and assemble the structure in the reverse order. Similarly, the rack for the second front wheel is replaced.
3 Methods for improving the interior of the "Korean"
Since Optima belongs to the business class, the tuning of the car interior will be more aesthetic than functional. The cab has almost all the devices designed to facilitate the management of the model and make the operation of the Kia more comfortable. Among the useful ones that can be additionally installed in the Optima salon, a mirror with a rear-view camera can also be noted.
As for changes in the interior of the cabin, at the request of the Kia driver, tuning can be performed by replacing the standard trim with another, more expensive material. In addition to this, you can repaint the instrument panel and other plastic interior elements.
Another effective option for tuning the interior is to replace the seats with sports seats. There is an opinion that such details are not comfortable and are not suitable for every driver. This is partly true, there are indeed chairs on the market that are designed for heavy loads. It will not be possible to sit comfortably in them, since these parts are very hard. However, there sports seats superior comfort, which will suit every car owner. They are made of soft materials and absolutely do not impede the boarding and disembarking of the driver and passengers.
There is nothing complicated in the installation of chairs. To replace, it is necessary to dismantle the standard Kia seats, and then clean seats. Then the mechanism of the mounting lever is degreased and you can proceed with the installation of new seats. During installation, the levers are wiped lubricant, after which the seats are finally attached to the regular fasteners.
It is worth being very careful both when buying and when installing seats. If the Optima is equipped with heated seats, then you should purchase sports seats with the same function as a replacement. When replacing, connect the wires exactly as indicated in the instructions.
The network of specialized Kia technical centers in Moscow carries out high-quality repairs of the Optima suspension at affordable prices with a subsequent guarantee.
Running gear diagnostics and repair
Any running gear repair in car services begins with an input diagnostic that allows you to determine its real technical condition, find existing faults and draw up a repair plan. Along the way, the condition of pipelines is also checked. brake system and power systems.
Repair of running Optima consists of the following operations:
- Visual inspection of the suspension for the integrity of the protective covers of all movable joints, mechanical damage to the chassis elements and the condition of silent blocks, ball bearings, shock absorbers, springs;
- Replacement of all elements of the running gear with increased wear.
Replacement of levers, silent blocks
The need to replace levers on Optima arises in cases of mechanical damage, or wear of silent blocks, ball bearings or their mounting holes.
To replace the mechanics of auto centers, they use original products, or their analogues from trusted manufacturers.
Replacing silent blocks with Kia Optima is required when they are significantly worn, such as:
- Mechanical damage;
- Subsidence of the inner bushing of the silent block;
- Cracks or bulging of the filler, or its rupture.
The replacement of silent blocks in Kia branded technical centers is carried out using press equipment, which guarantees the quality of their installation and reliable operation.
Replacing shock absorbers, thrust bearing
The condition of shock absorbers directly affects traffic safety. So a car with faulty shock absorbers increases the length of the braking distance, which is especially critical in emergency situations.
Therefore, the replacement of shock absorbers for Kia Optima should be done immediately after the discovery of their malfunction. In this case, both shock absorbers on the same axle of the car must be replaced to maintain the characteristics of the suspension.
The support bearing of the struts on the Optima is replaced when signs of its malfunction are detected. it can be a creak when turning the wheels, coming from both the bearing itself, and a characteristic sound from jamming the strut spring.
To replace the thrust bearing, Kia auto center mechanics use original parts, or a replica from trusted manufacturers.
For all installed spare parts and the service itself, a mandatory quality guarantee is given.
Prices for repair and diagnostics of the Kia Optima suspension
Suspension Diagnostics
from 500 rub.
Support bearing replacement
from 1"300 rub.
Replacing the front / rear arm
from 800 rub.
Replacing the silent block of the front / rear arm
from 600 rub.
Hub replacement, ball Kia Optima
The operation to replace the hub on the Kia Optima is performed in cases where the bearing play has appeared, or it has buzzed. To determine which hub needs to be replaced, it is recommended to contact the company Kia car services, where the mechanics will determine the faulty unit and perform its replacement.
Operating a car with a faulty hub is fraught with unpredictable consequences, since the hub bearing can simply fall apart, which will lead to jamming.
In cases where the bearing can be changed separately from the hub, the hub bearing is replaced. If the bearing is integrated into the hub, then only the entire hub is replaced.
When the models have ABS system, then the sensor can come with a hub or separately.
Front hub bearing original
Manufacturer: HYUNDAI
Article: 5172038110
Hub Optima, original
Manufacturer: HYUNDAI
Article: 527303S200 - rear axle
517202G000 - front axle
Replacing stabilizer struts
Structurally, the body of the stabilizer is attached with bushings to the elements of the body, and the stabilizer struts to the suspension parts. Therefore, it is recommended to replace the stabilizer struts immediately after detecting their malfunctions, as the suspension elements associated with them will be unnecessarily loaded.
Stabilizer bar, original
Manufacturer: HYUNDAI
Article: 555301R000 - rear axle
548302T000 - front axle
Replacement of the ball joint, CV joint
The ball joint is replaced with a Kia Optima when a support backlash is detected or its protective cover is torn.
Ball joint, original
Manufacturer: HYUNDAI
Article: 545302T010
Premature failure of CV joints is caused by a violation of the integrity of their protective covers. The CV joint is replaced when a crunch appears in turns, jerks when picking up speed and extraneous noise.
To replace the mechanics of car services, they use original parts, or a replica from trusted manufacturers.
CV joint, original
Manufacturer: HYUNDAI
Article: 495833S000 - CV joint boot
4950738D00 - outer
For all installed spare parts and the service itself, a mandatory quality guarantee is given.