Vehicle operation Škoda Octavia A7 In the conditions of our roads inevitably leads to wear suspension. One of the most vulnerable parts of this system is stabilizer links. They operate in a constant impact load mode, connecting the transverse stability stabilizer with the suspension levers. When this part fails, the driver hears a characteristic knock when driving irregularities, and the handling of the car becomes less predictable.
Many owners Octavia A7 They postpone their visit to the STO, considering the knocking a trifle. However, ignoring the problem can lead to accelerated wear of neighboring nodes: Silent blocks of levers, ball supports and even shock absorbers. Replacing stabilizer struts This is a procedure that is quite possible to perform yourself, if you have a minimum set of tools and observe safety. In this article, we will discuss all the nuances of diagnosis, selection of spare parts and the replacement process.
Diagnosis of the malfunction and characteristic symptoms
Determine that the problem is in the stabilizer racks, you can on a number of signs. The most obvious signal is a thunderous metal knock that occurs when passing by cops or pits at low speed. The sound usually comes from the front or rear suspension, depending on which axis requires attention. If you hear such a knock, you need to immediately conduct a diagnosis, because smashed It worsens the grip of the wheels on the road.
In addition to the audible alerts, other symptoms may occur. The car can start to “scour” along the road when driving, especially on uneven surface. In turns, the body can be heeled stronger than usual, which indicates a loss of stiffness of the stabilizer. Sometimes drivers notice uneven tire wear, although this is the result of deeper problems with the geometry of the suspension.
- 🔊 The appearance of a dull knock when passing irregularities at speeds up to 30 km / h.
- 🚗 Deterioration of course stability and a feeling of "vatality" steering.
- 🔍 Visual backlash when swaying the wheel or the hand rack itself.
⚠️ Note: Do not confuse the knock of stabilizer racks with the knock of shock absorbers or ball supports. For accurate diagnosis, it is necessary to lift the car and shake the stabilizer with your hand. If there is a backlash in the places of attachment of Silent blocks or hinges - the part requires replacement.
Selection of quality spare parts: original or analogue
The auto parts market offers a huge range of racks for Škoda Octavia A7. Manufacturer recommends using original parts under the brand VAG or Lemförder (factory supplier). However, the price of the original often scares away owners. A good alternative is proven analogues from manufacturers such as TRW, Febi Bilstein or Monroe. The main thing is to avoid cheap Chinese fakes that live only a couple of thousand kilometers.
When choosing, pay attention to the type of design. Nana Octavia A7 Often installed racks with a ball finger on both sides or on one side with a Bushing. It is important to check for anthers. The rubber cover protects the lubricant inside the hinge from dirt and water. If the anther is torn, the rack will quickly fail, even if it is expensive. High-quality lubricant inside the hinge is a pledge of long service.
For clarity, compare the popular options of spare parts presented on the market:
| Manufacturer | Type | Average service life (km) | Note |
|---|---|---|---|
| Lemförder | Original/VAG | 80 000 – 120 000 | High price, but maximum reliability |
| TRW | Analogue (Premium) | 60 000 – 90 000 | Excellent value for money |
| Febi Bilstein | Analog (Mid) | 40 000 – 60 000 | A good option for moderate driving |
| Dubious brands | Budget | 5 000 – 15 000 | Risk of Replacement in a Month |
- Original (VAG/Lemförder)
- Premium (TRW/Sachs)
- Middle class (Febi/Monroe)
- Cheap analogue
Necessary tools and preparation for work
Before starting work, the workplace must be prepared. You will need an observation pit or overpass, as access to the mounts of the stabilizer racks from below is limited. Also prepare a jack and reliable stops (stands) to fix the car. Safety is the number one priority when working with suspension.
The tool kit should include: a set of heads and a rattle, a collar, keys for 13, 16, 18, 21 (depending on the suspension modification), mounting and penetrating lubricant (for example, WD-40). If the racks are boiling, you may need a screwdriver or even a Bulgarian, but this should be resorted to only in extreme cases. Penetrating lubricant It is necessary, as bolts often overgrow corrosion.
☑️ Preparing to replace racks
This will ensure uniform operation of the suspension and eliminate distortions. If you replace only one, the second one may not be able to withstand the increased load and break down after a short time. In addition, when replacing racks, it is recommended to check the condition silent blocks of levers.
Step-by-step instructions for replacing front struts
The replacement process begins with the removal of the wheel. Unscrewing the nuts of the mount, remove the wheel and make sure that the car is reliably standing on the stops. Now you need to access the rack mounting location to the lever and shock absorber. Usually the lower mount is on the lever, and the upper - on the shock absorber rod or the body of the glass.
First of all, treat the nuts and bolts of the fastening with penetrating lubricant. Give it time to act (at least 10-15 minutes). Then, unscrew the nut of the mount to the lever. Here there is often a complexity: the finger of the rack rotates together with the head of the bolt. To avoid this, use a special hexagonal key (usually 6 mm or 7 mm) that is inserted into the finger struts while you unscrew the nut with the head.
If you do not plan to buy a special key, you can use two carob keys: one holds the slats part, the second unscrews the nut. After you open the lower mount, move to the upper one. There the procedure is similar: you need to keep the stem from turning and unscrew the nut. Carefully remove the old rackwithout making excessive efforts to avoid damaging the anther of the shock absorber.
If the nut is boiled so much that it does not lend itself, try heating it with a blowtorch or a building hairdryer. Heat expands the metal and breaks down the rust, making it easier to unscrew.
Installation of the new part is done in reverse order. It's important not to pull the screws right away. First, cash them with your hands, then lower the car so that the suspension takes a natural position, and only after that tighten with the recommended effort. This will prevent rapid wear of rubber bushings due to internal stress.
How to tighten the nuts? | The nuts of the mounting of the stabilizer racks should be tightened when the car is on wheels and the suspension is loaded. If you tighten on weight, the rubber bushings will be constantly twisted, which will lead to their rupture after a couple of thousand kilometers.
Features of replacing the rear stabilizer racks
Rear suspension Octavia A7 (especially in the beam versions) has its own nuances. Access to the rear stabilizer racks is often complicated by the presence of an exhaust system and a fuel tank. In some cases, you have to remove heat shields or even lower the exhaust pipe for easy access to the mounting bolts.
The rear racks often break down due to dirt entering the hinge area, as there are no such effective anthers as the front. When replacing, be sure to clean the seats of dirt and rust. Use a new lubricant if the design allows it to be applied. Verification of anther integrity The new parts are critically important as the rear suspension operates in a more aggressive environment.
- 🛠️ Use elongated heads to access hard-to-reach bolts.
- 🚫 Do not use a percussion tool to unscrew squash joints.
- ✅ Check the status of the stabilizer bushings, which can also knock.
⚠️ Attention
⚠️ Attention
When working with the rear suspension, be extremely careful with the fuel line and brake tubes. Do not put excessive effort on the tools to avoid damaging these systems.
Common mistakes and how to avoid them
One of the most common mistakes is to try to replace the rack without removing the wheel or without lifting the car. This leads to the fact that the nuts do not unscrew, and the hands and tool are injured. Always provide free access to the suspension nodes. Another mistake is the use of lubricant on the thread. Lubricate only the hinge, but not the thread of the bolts, as this can lead to their self-unwinding.
Some people forget about the time of the slack. Too weak a puff will lead to backlash and knocking, too strong - to deformation of the bushings. Use a dynamometer key if you have one. If not, focus on the effort of the hand, but remember that the nut should be tightened to the point, but without fanaticism. Torque control - guarantee the durability of the repair.
It is also worth noting the mistake associated with the choice of details. Buying racks "for growth" or universal models often ends in failure. For Octavia A7 There are different suspension options depending on the configuration (Sport, Elegance) and the type of engine. Check the VIN code before ordering to make sure compatibility.
Cost of work and final recommendations
If you decide to contact the service, the cost of replacing one rack will be from 500 to 1500 rubles, depending on the region and service. Taking into account two axes (front and rear) and a pair of racks on each, the total cost of work can reach 4000-6000 rubles. With a self-replacement, you will save this amount by spending only on spare parts. Save time Money is the main argument for self-repair.
After replacement, be sure to check the suspension. Take a ride on the rough road and listen to if the knocking has disappeared. If the sound remains, perhaps the problem is not only in the racks, but in other elements: levers, shock absorbers or stabilizer bushings. In this case, a deeper diagnosis will be required. Proper diagnosis saves up to 30% of the budget for suspension repairs.
Regular inspection of the suspension is a guarantee of your safety. Check the status of the stabilizer racks every 20-30 thousand kilometers. Timely replacement of small parts will prevent serious breakdowns and expensive repairs in the future. Take care of your car and it will respond with reliable service and comfortable food.
How often should I change the stabilizer racks to the ŠKODA Octavia A7?
The average life of the stabilizer rack is 40-60 thousand kilometers. However, if you drive aggressively or have bad roads, this period can be reduced to 20,000. Be aware of the presence of knocks and backlashes.
Is it possible to drive with a faulty stabilizer link?
Technically possible, but it's dangerous. Controllability deteriorates, the braking distance increases and the risk of skidding increases. In addition, the destroyed rack can damage other elements of the suspension.
Is it necessary to do a wheel alignment after replacing the struts?
No, the replacement of the stabilizer racks does not affect the angles of the wheels installation, so the descent-shattering is not required. However, if you have changed levers or ball supports, collapse-descend is necessary.
Why does the sling knock after replacing the pillars?
This may be due to improper puffing (too strong or weak), the presence of backlash in other nodes (levers, shock absorbers) or the defect of a new part. Check all mounts and condition of the neighboring elements.