Car rear suspension Skoda Octavia A5 often raises questions among owners due to the specific design of the beam. Unlike independent systems, it uses massive levers with pressed rubber-metal hinges, which are destroyed over time. Ignoring wear symptoms leads to accelerated failure of other suspension components and deterioration in handling.
The replacement process requires not only the presence of a tool, but also an understanding of the design features of the rear beam. Incorrect installation of new silent blocks It can cause them to quickly collapse even with a small run. It is important to observe the moments of tightening and use the correct technology of pressing old elements.
In this article, we will analyze all stages of work: from diagnosis to the final tightening of bolts. You will learn what tools you will need, how to choose quality spare parts and what mistakes are most often made by the master when repairing the rear axle.
Signs of wear and diagnosis of the rear beam
To determine the need for replacement can be several obvious signs that become noticeable during the operation of the car. Most often, the driver notices a characteristic knock or creak when driving irregularities, especially at low speed. The sound usually comes from the back of the body and can mimic a malfunction of shock absorbers.
Another alarming sign is the change in the behavior of the car on the road. If you feel that Skoda Octavia A5 has become less stable in corners or "swim" when braking, the problem may be in loosen Silent blocks. The rubber inside the hinge loses its properties, and the metal sleeve begins to beat the body of the lever.
Visual examination of the suspension allows you to confirm the diagnosis. You need to look under the car and assess the condition of rubber inserts. The presence of deep cracks, ruptures or the complete absence of rubber indicates that replacing silent blocks It became an inevitable necessity.
β οΈ Warning: If you hear a loud metal clanking while passing by speeding police officers, operating a car with such suspension is dangerous. The metal sleeve can separate completely, resulting in wheel locking or loss of control.
- π The appearance of knocking from behind when passing pits and irregularities
- π Drive the car away when braking on a straight line
- π Uneven wear of rear tires (especially shoulder)
Selection of quality spare parts and components
In the market of auto parts there are many options for repairing the rear suspension. Original details from Skoda They are distinguished by high quality rubber and accuracy of size, but their price is often overstated. Many owners choose proven analogues that offer the best value for money.
When choosing a manufacturer, pay attention to brands such as LemfΓΆrder, Corteco or TRW. These companies supply parts to the conveyors of many automakers, so their products meet strict standards. Avoid cheap Chinese counterparts, as their rubber blubbers quickly and cracks in the cold.
It is also important to consider the design of the lever itself. Some people prefer to change only. silent blockusing a special press. Others change the lever in the collection, which simplifies the work, but significantly increases the cost of repairs. You decide based on the budget and the availability of the tool.
For successful repairs, you need to prepare the right set of tools. You will need powerful jacks, car stands and a set of end heads. Pay special attention to the removable for Bushings, since it is almost impossible to knock them out with a hammer without the risk of damaging the lever.
- π οΈ Set of sockets and ratchets (including extensions)
- π οΈ A jack and a couple of reliable stand
- π οΈ Special remover for Bushings or powerful hydraulic press
- π οΈ Penetrating lubricant (e.g., WD-40 or analog)
- Replacement of Bushings with Inpressed
- Replacing the lever assembly
- I'll go to the service.
- I don't know yet
Preparation of the car and removal of the rear beam
Before starting work, it is necessary to ensure safety and access to suspension units. Drive the car into a hole or overpass, securely fix it with stands. Remove the rear wheels to gain full access to the levers and bolts of the mount. Donβt forget to turn off the battery if you plan to remove the wiring-related items.
The first step will be to loosen the bolts of the levers attachment to the body. It is better to do this even before you lift the car, as the lever is under load. Use penetrating lubricant to treat the thread, especially if the car has a solid mileage and the bolts are covered with rust.
After loosening the bolts, lift the car, remove the wheels and install the stands. Now you can completely unscrew the fastener and carefully lower the rear beam. Be careful: the levers can be heavy and falling can damage exhaust parts or brake tubes.
βοΈ Preparation for the removal of the beam
β οΈ Attention: In no case do not unscrew the bolts of attaching the levers to the body while the car is on wheels or fully hangs on the jack without insurance. A sharp load can lead to injury or damage to the thread.
Removing the beam requires care. If you do not plan to remove the entire node, and change the Silent blocks directly on the machine, make sure that the lever is freely lowered. Otherwise, other elements will have to be dismantled to make room for work.
Silent block replacement technology
The most difficult stage is the pressing of old and pressing of new tires metal hinges. A hydraulic press is ideal for this, but in the garage conditions you can use a removable. The main thing is not to make excessive efforts that can deform the body of the lever.
Before installing a new one silent block Clean the seat thoroughly of dirt and rust. Apply a little soap or lubricant to the outer surface of the rubber to facilitate entry. This will avoid damage to the rubber during installation.
Pressing the new element must be strictly in the center, controlling the angle of inclination. The distortion will lead to the fact that the rubber quickly breaks out of the body or deforms under load. After installation, make sure that the sleeve sits tightly and has no backlashes.
What's the replacement for the press?
If you do not have a press, you can use a long threaded stud, two nuts and corresponding stretchers (pucks). The design is assembled as follows: the stud passes through the lever and the sleeve, on the one hand a nut with an emphasis is wound, on the other hand a nut with a stretch that presses on the sleeve when tightening. It is a safe and effective method for garage conditions.
After replacing all the silent blocks, carefully examine the levers. Make sure there are no cracks in the metal and deformations. Any damage to the body of the lever makes it unsuitable for further operation, and it will have to be replaced entirely.
Before pressing the new Bushing slightly lubricate it with soap solution. This will simplify the installation and prevent the rubber from breaking during installation.
Installation of the beam and correct tightening of bolts
Installing the rear beam in place requires precision and attention to detail. Raise the levers and gently cash in the bolts of the mount to the body. Do not try to immediately tighten them to the point, as this can lead to a skewed rubber bushings.
A critical point is the tightening of the bolts of lever attachment. Manufacturers Skoda It is recommended to tighten them only when the car is on wheels and has full weight on the suspension. This is necessary in order for the rubber bushings to take their correct position when driving.
Use a torque wrench to check the tightening torque. For Skoda Octavia A5 This parameter is usually about 80 NΒ·m plus angle of dover (depending on the specific modification). Violation of this rule will lead to rapid wear of new Bushings.
| element | Tightening torque (Nm) | Additionally |
|---|---|---|
| Bounds for mounting the lever to the body | 80 | Plus 90Β° (twisted) |
| Shock Absorber Bolt | 60 | New nut |
| Wheel bolts | 120 | Cross puff |
| Stabilizer bolt | 25 | Protective cap |
After tightening all mounts, check the suspension. Ask your assistant to rock the car while you listen to the sounds from under the bottom. Any extraneous noise indicates that somewhere made a mistake in the installation.
Tighten the bolts of the rear beam levers attachment is necessary only under load when the car is on wheels to avoid distortion of the rubber bushings and their rapid destruction.
Wheel alignment and final check
After replacing the elements of the rear suspension, it is necessary to make a descent-shatter. Changing the geometry of the levers affects the angles of the wheels installation, and without adjustment, you risk uneven tire wear. The procedure is performed on a specialized stand.
On Skoda Octavia A5 The rear beam has no adjusting bolts, so the corners are exposed by installing eccentric washers or replacing worn-out parts. The master on the stand will determine whether adjustment is required and perform the necessary manipulations.
The final stage will be a test trip. Roll over different types of road surface, check the brakes and handling. If done correctly, the car should behave confidently and the extraneous sounds disappear.
β οΈ Warning: If after replacing the silent blocks and adjusting the descent-shattering machine still behaves unstable, check the condition of the front levers and shock absorbers. The problem can be complex.
- π οΈ Checking the wheel angles on the stand
- π οΈ Test ride on rough road
- π οΈ Checking bolt tightening after 1000 km
Common mistakes and how to avoid them
Many owners Octavia A5 They make common mistakes when repairing the back. One of the most common is tightening of the bolts of mounting levers in suspended condition. This leads to the fact that the rubber bushings work in tension and quickly break.
Another mistake is using the wrong tools for pressing. An attempt to knock out the Bushing with a hammer or mount often ends in damage to the body of the lever. As a result, you have to change the entire node, which is much more expensive.
It is also worth paying attention to the condition of the bolts. If the thread is damaged or the bolt has traces of corrosion, it must be replaced. Reusing old fasteners can cause them to break during movement.
Why is the new suspension creaking?
Sometimes after replacing the Bushings, creaking occurs. This may be due to the fact that the rubber sleeves have been pulled or installed with a skew. It may also be due to the lack of lubrication on contact surfaces. In some cases, treatment with silicone lubricant helps, but if the creak persists, you will have to reassemble the node.
Compliance with technology and the use of high-quality tools is the key to the durability of repairs. Do not skimp on spare parts and do not miss diagnostic steps to avoid repeated visits to the service.
Never tighten the bolts of the rear beam mount while the car is hanging in the air. This ensures the correct angle of operation of rubber bushings and extends their service life for years.
Frequently Asked Questions
How long does it take to replace silent blocks?
If you have the necessary tool and experience, replacing Bushings takes from 3 to 5 hours. If you change the levers in the collection, the work will take less time - about 2 hours.
Is it possible to change silent blocks without removing the beam?
It is theoretically possible, but it is extremely inconvenient. Space is small and access to the internal Bushing is difficult. Removing the beam greatly simplifies the process and reduces the risk of damage to other nodes.
Is it necessary to do a wheel alignment after replacement?
Yes, I will. Replacing suspension elements changes the geometry of the rear axle. Without adjusting the angles of the wheels, the tires will wear out unevenly, and the handling of the car will deteriorate.
What tools are needed for printing?
A hydraulic press is ideal. In garage conditions, you can use a special remover or homemade structure of studs, nuts and slots. The hammer is not recommended to use.
Should I change the levers in the collection?
If the levers are not bent and do not have cracks, replacing only the Bushings is more profitable financially. However, if you donβt want to mess with the press, buying levers in the assembly will speed up the repair, but increase its cost.