The suspension of the car is a complex system, on the serviceability of which the safety and comfort of the trip directly depends. Owners of the popular sedan and liftback Škoda Octavia A5 Often face the problem of drawdown of the back of the body, which is a fair concern. The main reason for such changes in the geometry of the suspension is often fatigue of the metal in the spring elements or their mechanical damage.
Ignoring problems with posterior It can lead to disruption of the angles of collapse-convergence, premature wear of shock absorbers and even deterioration of handling at high speeds. Owners need to understand that the replacement of this element is not just a cosmetic procedure, but an important stage of maintenance, requiring accurate selection of components.
In this article, we will discuss in detail how to recognize a malfunction, what parameters to take into account when choosing spare parts and how to properly carry out repair work on your own. We will also consider the nuances of the installation reinforced springs For those who frequently carry cargo or passengers.
Causes of subsidence and signs of spring wear
The first warning sign that you should pay attention to is a visual difference in body level. If the back end Octavia A5 noticeably below the front, even when the car is empty, this is a sure sign of loss of elasticity. However, a visual examination is not always sufficient, so it is important to know other symptoms that indicate problems with the condition. rear suspension.
The characteristic signs of wear include:
- 🚗 The appearance of foreign knocks or creaks when passing irregularities, even if the shock absorbers are serviceable.
- 📉 A significant increase in body rolls during cornering, which makes the car "cotton" in control.
- 💥 Shock absorbers strike the breakers at full load of the trunk or passengers.
- 🚦 Uneven wear of rubber on the rear wheels due to violation of the geometry of the suspension.
Physical causes of the degradation of springs lie in cyclic loads. The metal they are made of has a limit of endurance. Over time, under the influence of constant compressions and stretches, as well as corrosion, the cross section of the spring decreases, and it loses its elastic properties. This is especially true for cars with a mileage of more than 150,000 kilometers.
Particular attention should be paid to the state of anticorrosion coating. If the varnish or paint on the turns springs exfoliated, moisture and reagents penetrate inside, causing point corrosion. It is in the places of chipping that rust becomes a stress concentrator, which ultimately can lead to the spring breaking in half.
Original spare parts and high-quality analogues
The choice between the original part and the quality analogue is always a compromise between price and performance. For Škoda Octavia A5 original springs are marked with VAG code and are produced in the partner plants of the concern, such as: Lemförder or KYB. They provide standard rigidity and body height, exactly corresponding to factory settings.
However, the market offers a variety of alternative solutions that often outperform the original in resource or cost. Leading suspension manufacturers, such as KYB (Excel-G series), Sachs and MonroeThey produce springs adapted for Russian roads.
When choosing, you should take into account the spring code, which depends on the curb weight of the car and the type of body (liftback or wagon Combi). Incorrectly selected part with less rigidity will lead to a quick drawdown, and a more rigid one - to a hard and uncomfortable ride. Below is a table with the main characteristics of popular options.
| Manufacturer | Product type | Approximate price (RUB) | Features |
|---|---|---|---|
| SKODA (VAG) | Original | 4500 - 6000 | Perfect geometry, factory rigidity |
| KYB | Analogue (Excel-G) | 2500 - 3500 | High resource, proven quality |
| Lemförder | Original supplier | 3000 - 4200 | Accurate match to the original |
| ASVA | Budget analogue | 1500 - 2000 | Low price, average resource |
| ProSport | Reinforced | 3500 - 4500 | For loading the trunk, a little tougher than the staff |
There is a category of so-called “reinforced” springs, which are often chosen by owners carrying heavy loads. Such products have a larger step of turns or an increased cross section of the rod. They are great for taxi or commercial work, but can make everyday driving too tough.
⚠️ Note: Installation of springs with a different marking without consulting a specialist can lead to disruption of the ABS and ESP system, since the body angle sensors can give incorrect data.
- Original VAG
- Quality analogues (KYB/Sachs)
- Reinforced springs
- Air suspension
Tools and preparation for replacement
Replacing rear springs with Octavia A5 - the process is labor-intensive, requiring specialized tools and compliance with safety precautions. You won't be able to get the job done using just a standard set of keys. The key is to safely compress the spring before removing it.
To carry out the work you will need:
- 🔧 A jack and reliable stands (“goats”) for fixing the body.
- 🔩 Powerful socket set including 15, 18 and 21 mm wrenches.
- 🏗 Spring remover (screw or hydraulic) - without it, removing the spring is extremely dangerous.
- 💨 WD-40 or similar penetrating thread sealant.
- 🔨 Hammer and pry bar for working with stuck bolts.
Before starting work, the vehicle must be placed on a flat, hard surface. The rear wheels must be blocked, and the front wheels must be chocked. If you plan to change the springs on only one side, be sure to remove the wheel on the opposite side to access the rear beam.
⚠️ Caution: Never attempt to compress a spring by simply jacking up the vehicle. The spring is under enormous tension and can fly out if the fastening is loosened, causing serious injury.
☑️ Preparing to replace springs
Step-by-step instructions for dismantling and installation
The replacement process begins with removing the wheel and dismantling the brake caliper. It is better to hang the caliper on a wire from the body so as not to damage the brake hose. Next, you need to disconnect the ABS sensor, if it runs near the spring mounting location, and unscrew the top bolt of the shock absorber.
The most important stage is working with the rear beam. It is necessary to lower the beam on the jack so that the spring is no longer compressed, but at the same time maintain control over its position. Next, the spring pullers are put on opposite turns and tightened evenly until the spring is freed from the supports.
After removing the old part, carefully inspect the upper and lower supports. Rubber bushings often crack and fall apart. Their replacement is mandatory, otherwise the new spring will not work correctly and will quickly fail. Install the new spring in the reverse order, making sure that it fits tightly into its seats.
Pay special attention to aligning the slot on the lower spring support with the protrusion on the beam. If this is not done, the spring may move to the side at the first hole. Tighten the shock absorber and beam mounting bolts to the required tightening torque using a torque wrench.
What to do if the shock absorber bolt does not unscrew?
If the bolt is stuck, do not try to rip it off with brute force, so as not to break the shock absorber rod. Use a high-quality penetrating compound, heat the joint with a hair dryer or torch (be careful with the brake system!) and try to tear it off with an extension cord and a blow.
Before starting work, be sure to photograph the location of the old spring relative to the body and beam. This will help you install the new part correctly and avoid distortions.
Nuances of toe-in and suspension settings
After replacing the rear springs with Škoda Octavia A5 suspension geometry inevitably changes. Even if you installed absolutely identical stock springs, the body height may change slightly, which will affect the wheel alignment angles. Ignoring this stage is a common reason for the car to pull to the side or for rapid tire wear.
Be sure to visit the wheel alignment stand after replacing the springs. The technician must check not only the camber and toe angles, but also the height of the body. If the parameters do not correspond to factory values, additional adjustment or checking the quality of installation of parts will be required.
It's important to note that on a multi-link rear suspension (if you have an independent suspension version rather than a beam suspension), the adjustment may be more complex and require replacing the eccentric bolts. On the version with a beam, the toe angles are adjusted by tightening the bushings on the silent blocks.
Replacing springs without subsequently adjusting the wheel alignment is a guaranteed way to ruin new tires and worsen the car's handling in the first months of operation.
It is also worth checking the operation of the stabilization system and body level sensors, if they are included in the package. Sometimes, after replacing the springs, it is necessary to adapt the electronics through a diagnostic scanner so that the system stops producing errors in body height.
Operation and service life extension
In order for new springs to last as long as possible, you must follow simple operating rules. Avoid overloading the vehicle beyond the permissible limit specified in the technical documentation. Constantly driving with a full trunk and five passengers accelerates metal fatigue.
Inspect the suspension regularly for signs of corrosion. If you notice chipped paint, they should be cleaned and coated with a special anti-corrosion compound. This will prevent rust from developing deeper into the metal and will extend the life of the part by several years.
It is also recommended to replace springs in pairs. Replacing only one spring will result in the new part working in tandem with the sagging old one, which will cause body distortion and uneven load on other suspension elements. This is especially true for cars with high mileage.
Replacing springs should always be done as a set (on both sides) to ensure symmetrical suspension stiffness and avoid body distortion.
Timely replacement of worn suspension components is an investment in safety and comfort. Do not delay repairs until the spring breaks, as this can cause serious damage to the body and other parts of the vehicle.
How to determine that the spring has sagged without measuring the height?
Inspect the gap between the tire and wheel arch. If it is significantly smaller on one side than the other, or if you see that the spring is heavily compressed even when the trunk is empty, this is a sign of sag. You can also press on the rear bumper and release: if the body rocks more than twice, the spring may be faulty.
Is it possible to drive with one broken spring?
Strongly not recommended. Driving with a broken spring disrupts the suspension geometry, which can lead to the wheel hitting the arch, damage to the brake hoses and loss of controllability. In addition, the load on the remaining intact spring and shock absorber doubles, which will lead to their rapid failure.
Do shock absorbers and springs need to be replaced?
Preferably. If shock absorbers have a mileage of more than 100,000 km, they are already worn out. Installing new springs on old shock absorbers will cause the spring to work incorrectly and the shock absorber will quickly fail. A complete replacement will provide better ride quality and durability.
Does replacing springs affect the car's warranty?
If the car is under warranty, independent replacement or installation of non-original parts may become grounds for refusal of warranty repair of the suspension. In this case, it is recommended to contact official dealers to use original VAG spare parts.
What is the lifespan of the Octavia A5 rear springs?
The average resource is from 150,000 to 200,000 kilometers. However, it greatly depends on the quality of the roads, driving style and operating conditions (climate, availability of reagents). Under the conditions of Russian roads, subsidence often occurs already at 100,000 km.