Vehicle operation Skoda Octavia A7 on domestic roads inevitably leads to suspension wear. One of the most loaded elements here are the front and rear shock absorber struts. They are responsible for passenger comfort, control stability and, most importantly, braking distance on uneven surfaces. Ignoring problems with the chassis can lead to accelerated tire wear and even loss of control in an emergency situation.
Many owners are faced with a dilemma: should they replace only the shock absorber or as a complete set with the strut assembly? For model Octavia A7, built on the MQB platform, the suspension design has its own nuances. Owners have to choose between cheap analogues and original parts from VAG. The right choice affects not only the repair budget, but also the life of the entire suspension as a whole.
In this article, we will look in detail at how to recognize a malfunction, which brands have proven themselves best, and how to replace it yourself without resorting to expensive services. We will also pay attention to the features of adjusting toe angles after installing new elements.
Symptoms of malfunction and diagnostics of the suspension
You can determine that shock absorbers have exhausted their service life by a number of characteristic symptoms that become noticeable even to an inexperienced driver. The most obvious sign is the characteristic knocking and squeaking noises around the wheels when driving over uneven surfaces. If you hear a dull thump when hitting a hole, most likely the shock absorber has lost its ability to dampen spring vibrations.
The second true signal is a change in the car's behavior when cornering. Skoda Octavia A7 Known for its directional stability, but worn struts make the car fall apart. When changing lanes or making sudden maneuvers, the body will roll more than usual, creating a feeling of instability. In addition, pay attention to the braking: if the car โnodsโ too sharply, and the wheel bounces on an uneven road, this is a direct signal for replacement.
A visual inspection can also reveal problems. Inspect the shock absorber struts for oil leaks. If you see oil marks on the shock absorber body, it means the seal has failed and the hydraulic fluid has leaked. Oil on the body - this is a sure sign that the part must be replaced immediately, since the damping efficiency has already been reduced.
- ๐ The appearance of knocks and creaks in the suspension when driving over uneven surfaces.
- ๐ Increased braking distance and sudden body sway when braking.
- ๐ The car pulls to the side when driving in a straight line or has poor steering response.
- ๐ง Visible oil stains on the shock absorber body or boot.
โ ๏ธ Attention: Operating a car with faulty shock absorbers is strictly prohibited on ice or wet asphalt, as the wheel may completely lose traction, which will lead to loss of controllability.
Manufacturer's choice: original or high-quality analogue?
Spare parts market for Octavia A7 is oversaturated with offers, and itโs easy for a newcomer to get confused by brands. An official dealer will offer you original parts with markings VAG. This, of course, guarantees quality and full compliance with factory specifications, but the price of such spare parts is often 2-3 times higher than market analogues.
There is a verified list of manufacturers who supply products to the Volkswagen Group conveyors. These include such giants as KYB, Sachs and Bilstein. These brands produce racks that are no different from the original ones, but are cheaper because they do not have the โbrandโ in the name of the package. For Skoda Octavia A7 stands are especially popular KYB Excel-G and Sachs Super Touring.
If your budget is limited, you may want to consider more affordable options such as Delphi or Monroe. However, you need to be careful with them: some models may have a harder or softer damping effect than the standard one. Avoid buying cheap Chinese analogues without well-known markings, as their service life rarely exceeds 20-30 thousand kilometers.
- ๐ KYB - ideal balance of price and quality, often installed as the original.
- ๐ก๏ธ Sachs โ premium comfort, excellent characteristics for urban use.
- โ๏ธ Bilstein B4 โ reliable racks that replicate the characteristics of the factory.
- โ ๏ธ Delphi - a budget option, requires careful selection of the model.
- Original VAG
- KYB/Sachs
- Budget analogues (Delphi/Monroe)
- I don't know, please advise
Complete strut or separate shock absorber?
When replacing shock absorbers with Octavia A7 before the car owner the question arises: buy separately a โbarrelโ (shock absorber) or a rack in the collection? Separate purchase of shock absorber is cheaper, but requires difficult work: removing the rack, disassembling the spring and installing new anthers and breakers. If you are doing this for the first time, the risk of damaging the spring or improperly assembling the knot is very high.
The rack in the assembly (the so-called "arrow") is a ready-made solution that includes a shock absorber, spring, anther, a breaker and a support bearing. Installation of such a part takes half the time and does not require a special tool, such as spring compressors. For Skoda Octavia A7 With its complex design of the front suspension, this option is often more profitable in terms of the total cost of time and effort.
This is critically important, as older bearings are often jammed, causing creaks and backlashes. If you replace only the shock absorber and the old bearing remains, you risk noise in a couple of months.
โ ๏ธ Attention: When buying rack assembly be sure to check the compatibility of the spring with your engine modification, as for diesel versions and versions with turbocharging springs of different stiffness and length are used.
The rack assembly is the optimal solution for self-replacement, eliminating errors in the assembly of the spring assembly and providing replacement of all worn suspension elements at once.
Tools and preparation for replacement
Before starting work, all the necessary equipment must be prepared. To replace the racks with Octavia A7 You will need a standard set of wrenches, jack and supports. However, you can not do without a specialized tool, especially if you change only the shock absorber, and not the rack in the assembly. You will definitely need spring compressors.
It is better to carry out the work on the observation pit or overpass, since access to the upper nuts of the shock absorber support in the wheel arch can be difficult. If you are working on a lift, this will speed up the process significantly. Donโt forget to buy a new set of fasteners, as many bolts and nuts on the suspension VAG They are disposable and require replacement after unscrewing.
- ๐ง A set of end heads (including E-heads for bolts with a hexagonal internal hole).
- ๐จ A hammer and a puncher to knock out the soured fingers of the levers.
- ๐งด Penetrating lubricant (WD-40 or analog) for the treatment of threaded joints.
- ๐ Torque wrench for tightening bolts to the correct torque.
โ๏ธ Preparing to replace racks
Which bolts do you need to change?
It is recommended to replace all shock absorber mount bolts to the lever, as they often have stretched thread or damaged corrosion protection. The shock absorber's nut is also necessarily changing.
Step-by-step instructions for replacing the front strut
The process of replacing the front pillar begins with the removal of the wheel and unscrewing the bolts of the rotary fist attachment to the shock absorber. Usually it's two bolts from the bottom that can be boiling. Use penetrating lubricant and give it time to act so as not to tear the thread when unscrewed. After unscrewing the bolts, carefully pull the turning fist aside.
Next, you need to unscrew three nuts of attachment of the upper support of the shock absorber to the body in the hood space. If you change the rack in the assembly, then after removing the old bolts, the entire structure is removed entirely. If you change only the shock absorber, then you will need to compress the spring and disassemble the node on the workbench.
The installation of the new rack is carried out in reverse order. It is important to properly tighten the mount bolts to the lever, but do not drag them to the deformation of the thread. The final tightening of all suspension elements should be made with a loaded suspension, that is, when the car is on wheels, so as not to damage the Bushings.
Puffing moments (example):The shock absorber nut: 50 Nm + finish
Bolts of mounting to the lever: 120 Nm + doll
Top support nuts: 20 Nm
Before the final tightening of the bolts of the rack to the lever, be sure to ask the assistant to sit in the car so that the suspension takes the working position.
Comparison of characteristics and prices of popular models
To help you navigate prices and characteristics, we have prepared a comparative table of popular rack options for the Skoda Octavia A7. The data are based on average market prices and technical characteristics that are currently relevant.
| Brand/Model | Type | Service life (km) | Approximate price (per piece) | Features |
|---|---|---|---|---|
| VAG (Original) | Shock absorber | 100 000+ | 8 000 - 12 000 โฝ | Perfect compatibility, high price |
| KYB Excel-G | Shock absorber | 80 000 - 100 000 | 3 500 - 5 000 โฝ | Gold Standard, a reliable choice |
| Sachs Super Touring | Shock absorber | 90 000+ | 4 000 - 6 000 โฝ | Comfortable driving, softer than the original |
| Bilstein B4 | Shock absorber | 80 000+ | 4 500 - 5 500 โฝ | Sport characteristics, rigidity |
| KYB is here. | stand | 80 000 | 7 000 - 9 000 โฝ | Includes spring and supports, it is convenient to change |
โ ๏ธ Attention: The prices in the table are indicated tentatively and may vary depending on the region and the exchange rate. Always check the availability and value of the supplier before ordering.
Note that the price difference between a separate shock absorber and a rack in the collection does not always justify saving time. If you do not have spring compressors and experience with suspension, buying a rack assembled will save you nerves and money on the services of a car service. For Octavia A7 With front-wheel drive, the process of replacing the front rack assembly is relatively simple and takes about 1-1.5 hours on one side.
Buying a rack assembly with a spring kit avoids the risk of improper suspension assembly and ensures that all elements (including bearings) are new.
After replacement: wheel alignment and running-in
After installing new shock absorbers on Skoda Octavia A7 It is necessary to visit the stand of the collapse. Even a slight change in the geometry of the suspension when replacing the shock absorber can lead to the car being sideways or uneven wear of the tires. This is especially true if the levers or Bushings were affected during the replacement.
The first 500-1000 kilometers after replacement should be observed running mode. Avoid sharp braking, extreme maneuvers and driving deep pits at high speed. New suspension elements take time to lace, and aggressive driving during this period can reduce their life. Check the tightening of all bolts after the first thousand kilometers of run.
- ๐ฏ Go through the procedure. wheel alignment within the first 100 km after replacement.
- ๐ Avoid sharp accelerations and braking during the run-in period.
- ๐ Control the tightening of the bolts through 500-1000 km of run.
- ๐ Watch for new sounds when driving.
Frequently asked questions (FAQ)
Is it possible to change shock absorbers one at a time?
Technically possible, but strongly discouraged. The difference in rigidity and working out between the old and new rack will lead to uneven wear of the tires, deterioration of handling and increased load on the rest of the suspension elements. Always change shock absorbers with a pair on one axis.
What happens if you donโt change the bearing when you replace the rack?
If the support is already worn out, it will make creaks and knocks when turning the steering wheel. In the worst case, a jammed bearing can cause the rack to stop rotating with the wheel, causing rapid wear and loss of handling. It's better to replace the support right away.
How to distinguish a fake from the original KYB rack?
Counterfeits often have less quality paint, uneven carvings and no protective plugs. The original marking is clearly marked, and the barcode corresponds to the manufacturer's database. Buy parts only from official dealers or trusted suppliers.
Do I need to lubricate the thread during installation?
Yes, the thread of bolts and nuts is recommended to be lubricated with graphite or copper lubricant to prevent them from souring in the future. This will make it easier to remove the suspension at the next replacement.
Timely replacement of shock absorber racks is an investment in the safety and comfort of your home. Skoda Octavia A7. Donโt delay repairs until serious problems arise, as this could result in more expensive suspension repairs or crashes. Choose quality parts, use the right tool and do not neglect the descent-breakdown procedure.