The shock rack is a key element of the suspension, responsible not only for the comfort of the ride, but also for the safety of driving. For owners. Skoda Octavia A5 This is a particularly relevant topic given the age of most cars on the roads and the intensity of operation in our road conditions. When you notice that the steering wheel begins to βfloatβ on irregularities or there is a foreign knock when passing pits, the problem often lies in wear and tear. front shock absorbers.
Ignoring symptoms leads to accelerated wear of other suspension nodes, such as levers, Silent blocks and even the car body due to corrosion. Properly selected and installed part will return the car factory handling and smoothness. In this article we will analyze all the nuances of selection, diagnosis and self-replacement of shock racks on the popular Czech sedan.
Main signs of malfunction of shock absorbers
To determine the wear of the shock rack can be a number of characteristic symptoms that become noticeable even to an inexperienced driver. The first alarm is often the appearance of a knock or creak in the front of the body when passing irregularities. This sound is caused by the internal fluid in the shock absorber It leaks out, and the piston starts to hit the bottom of the body.
Another sure sign is uneven wear of rubber. If you notice that the tire tread is Skoda Octavia A5 wears off with "spots" or from the inside faster than from the outside, this indicates the loss of the ability of the shock absorber to keep the wheel in constant contact with the road. It is also worth paying attention to the behavior of the car with sharp braking - if the body strongly pecks with its nose and swings for a long time, the racks no longer work effectively.
- π The appearance of a strong swing of the body after hitting an obstacle.
- π§ Visible decays of the depreciation liquid on the rack body.
- π Increased braking distance and deterioration of course stability.
- π Unpleasant sounds (knocking, creaking) when passing by lying policemen.
β οΈ Warning: If the shock absorber is completely destroyed, this can lead to the wheel detachment from the road in a turn, which can lead to a serious accident. Do not delay diagnosis at the first sign of malfunction.
Manufacturer's choice: original or analogues
The aftermarket offers a huge selection of suspension solutions Skoda Octavia A5The choice is often between original details and quality counterparts. Original shock absorbers supplied under the brand VAGThese are usually produced in partner factories, such as Koni or Bilstein. They guarantee perfect factory-factory fit, but their price can be well above average.
Many owners choose proven analogues that offer excellent value for money. Market leaders are Bilstein (B4 and B6) series, Kayaba (KYB) and Sachs. These brands have their own technologies for the production of gas and oil racks, which often exceed even the original components in resource and rigidity. The choice of a particular brand depends on your driving style preferences.
- π Bilstein B4 A classic replacement, suitable for a quiet ride.
- ποΈ Bilstein B6 - sports racks, increase rigidity and controllability.
- π° Kayaba Excel-G Excellent balance of price and characteristics for the city.
- π‘οΈ Sachs Super Touring Reliable racks with increased resource.
When choosing, it is also important to consider the type of suspension: Octavia A5 with engine 1.4 or 1.6 often installed one rack, and the version 1.8 TSI or RS - reinforced. The wrong choice of engine type can lead to rapid breakage of a new part or deterioration of comfort.
- Oily (soft)
- Gas-oil (golden mean)
- Gas (rigid)
- Original VAG
Complementation and necessary spare parts
Replacing front shock absorbers with Skoda Octavia A5 This is a complex procedure that requires the replacement of not only the racks themselves, but also the accompanying elements. To change only the body of the shock absorber without bearings and anthers is a mistake that will lead to re-repair in a couple of months. You will need a complete set that includes a bearing, anther and a breaker.
There are two main approaches to replacing the entire assembly (shock rack with springs) or disassembling the old rack and transferring the spring to a new shock absorber. The first option is simpler and faster, but more expensive. The second option requires a special compressor for springs and skills with pneumatic tools, but saves money on the purchase of springs.
| Part name | Original number (example) | Recommended analogue | Average price (RUB) |
|---|---|---|---|
| Front right shock absorber | 5U0 412 051 | Bilstein B4, Kayaba | 4500 - 7000 |
| Support bearing | 1K0 412 249 | Febi, SWAG | 1200 - 2500 |
| Shock absorber boot | 1K0 412 095 | Original, Topran | 800 - 1500 |
| Package for assembly (dust + jack) | 1K0 412 377 | KYB, SACHS | 1500 - 3000 |
β οΈ Warning: Never change shock absorbers from one side only! This will create a difference in suspension stiffness, which will lead to the car being sidelined during braking and unstable behavior on the track.
Preparation of tools and workplace
To carry out the work, you will need a lift or an observation pit, as well as a reliable set of tools. Spring puller This is the most critical tool in the process. Without it, you will not be able to safely disassemble the rack. Attempts to compress the spring with improvised means or "by eye" can lead to serious injuries and damage to parts.
Also prepare the keys for 18, 21, 22, as well as the end heads. To unscrew the nut of the shock absorber rod, a special rattle key or hexagon is often required, which is included in the set of new racks. Donβt forget about penetrating lubricant (such as WD-40 or Liquid Wrench), as the mount bolts can boil due to corrosion.
- π§ Hydraulic jack and safety stands (goats).
- π¨ A hammer and a chisel to knock out rusty bolts.
- π A set of heads, collars and extension cords.
- βοΈ The sleeves of the springs (required!).
βοΈ Preparing for replacement
What to do if the nut on the rod does not unscrew?
If the nut is boiling, do not try to break the rod. Use a burner heater (caution with a dustproof cover!) or apply more penetrating lubricant and leave overnight. In extreme cases, you can carefully drain the nut with a Bulgarian, but the stock should remain intact.
Step-by-step replacement instructions
We start with lifting the car and removing the front wheel. Make sure the car is securely fixed on the stands. Unscrew the nut of the mounting of the rack to the turning fist. It is usually located at the bottom and requires a lot of effort. After that, disconnect the brake hose and ABS wires so that they do not interfere with the dismantling.
Next, you need to unscrew three nuts of attachment of the support of the shock absorber to the body in the engine compartment. Be careful not to drop nuts inside the arch. Removing the rack in the assembly, install it on the workbench and with the help of the removable, squeeze the spring until it ceases to press on the supporting bearing. Only then can the central nut of the rod be unscrewed.
Collect a new node in reverse sequence: install a new anther, breaker and spring on a new shock absorber. Insert the stem and tighten the central nut. Important: You only need to tighten the rod nut when the spring is compressed and the car is standing on its wheels, otherwise the thread may break the first time you drive over uneven surfaces. Install the assembled rack onto the vehicle and tighten all mounting bolts.
Wheel alignment and final check
After replacing the front shock absorbers with Skoda Octavia A5 suspension geometry inevitably changes. Therefore the procedure wheel alignment is mandatory. Neglecting this step will result in the new set of tires wearing unevenly and causing the steering wheel to become crooked.
Before going to the stand, check the tightness of all fastening bolts. Drive over rough roads to make sure there are no knocking noises. If you installed stiffer sports struts, be prepared for the fact that comfort on bad roads will decrease, but handling will improve.
β οΈ Attention: If you do not perform a wheel alignment, you can lose up to 30% of your tire life in the first 5,000 kilometers, which is not economically profitable.
Is it possible to drive without a wheel alignment?
Technically, the car will move, but the wheels will work abnormally. This is dangerous for safety and ruinous for the budget due to rapid wear of the rubber.
Common mistakes when replacing
One of the most common mistakes is skimping on small details. Buying cheap journal bearings or boots that don't fit properly can defeat the whole purpose of replacing expensive shock absorbers. A cheap bearing can jam and the wheel will start to knock, simulating wear on the strut itself.
Another mistake is not tightening the bolts correctly. Tightening too weak will lead to backlash and knocking, and too strong will lead to thread breakage or deformation of fasteners. Use a torque wrench to ensure all connections are properly torqued to factory specifications.
- β Replacing only one rack instead of a pair.
- β Ignoring the replacement of anthers and bump stops.
- β Refusal of the wheel alignment procedure.
- β Using rusted or damaged bolts.
FAQ: Frequently asked questions
How long does it take to replace front shock absorbers?
If you have all the necessary tools and work experience, replacing a pair of front shock absorbers takes from 1.5 to 3 hours. If the struts are stuck or there is no spring remover, the time may increase.
Is it possible to replace shock absorbers with your own hands without a lift?
Theoretically, it is possible using a jack and sawhorses, but this is extremely inconvenient and dangerous. For safe dismantling and, most importantly, for proper tightening of the rod nut (when the spring is compressed and the wheel is loaded), it is better to use a lift or pit.
What shock absorbers are best for winter?
For winter conditions, it is better to choose oil or soft gas-oil struts (for example, Kayaba Excel-G or Bilstein B4). They better smooth out irregularities, which in winter are often hidden under snow, and are less susceptible to jamming in the cold.
Do I need to change springs when replacing shock absorbers?
It is recommended to change the springs if the car is more than 5-7 years old or if you notice that the car has sagged. Old springs may have metal fatigue and not provide the desired ride height, reducing the effectiveness of new shock absorbers.
Why does the new strut knock after replacement?
The reasons may be different: the bolts are not tightened, a low-quality support bearing is installed, or the problem is in other suspension elements (levers, silent blocks), which also require replacement. Check the tightness of all fasteners.