Rear struts (shock absorbers) on ล KODA Octavia Tour - a critical element of the suspension, on which not only comfort, but also safety depends. Worn shock absorbers worsen handling, increase stopping distances, and can damage other components, from springs to wheel bearings. However, many owners Octavia Tour are faced with a dilemma: original racks are expensive, and analogues from third-party manufacturers raise doubts about the quality.
In this article, we will look at how to determine if rear struts are faulty, which brands offer the best price-reliability ratio, and how to replace them yourself, taking into account the design nuances Octavia Tour (including models with DSG and all-wheel drive 4x4). You will also find a comparison table of popular shock absorbers and answers to frequently asked diagnostic questions.
Signs of faulty rear struts on an Octavia Tour
The first symptoms of wear on the rear shock absorbers Octavia Tour often go unnoticed because degradation occurs gradually. However, they cannot be ignored: according to research Bosch, worn struts increase the braking distance on wet roads to 20% is a critical risk factor in emergency situations.
Key signs to look out for:
- ๐ด Body rocking after driving over bumps (especially noticeable when loading the trunk).
- ๐ด "Sagging" of the rear during sudden braking or acceleration, you can visually see how the rear of the car โsquats.โ
- ๐ด Uneven rear tire wear (especially along the inner edge) - indicates a violation of the suspension geometry.
- ๐ด Knocks or squeaks in the area of the rear wheels when driving over uneven surfaces (may indicate destruction of the bushings or seals of the struts).
- ๐ด Deterioration in directional stability at speeds over 100 km/h - the car begins to โfloatโ along the lane.
Important: on Octavia Tour with the system DSG worn rear struts can cause jerks when changing gears due to the displacement of the body relative to the transmission. This is due to the fact that the electronic transmission control unit takes into account data from body position sensors.
โ ๏ธ Attention: If after replacing the racks there is metallic grinding When the suspension is operating, immediately check the correct installation of the springs and the condition support cups โ their deformation can lead to damage to the body.
- Every 20 thousand km
- Once a year
- Only when symptoms appear
- Never checked
Which rear struts are suitable for the Octavia Tour: original vs analogues
When choosing shock absorbers for ล KODA Octavia Tour (including restyled versions A7 FL and A8) it is important to consider not only the brand, but also type of construction. This model is equipped with two types of racks:
- ๐ง Gas-oil (hydraulic) โ softer, suitable for a quiet ride (original article number:
6Q0 513 025 Jfor the left,6Q0 513 026 Jfor the right one). - ๐ง Gas (high pressure) โ tougher, recommended for active driving or a loaded car (article:
6Q0 513 025 M/6Q0 513 026 M).
Original racks from ล KODA are produced by the company ZF Sachs, but their price often exceeds 10,000 rubles apiece. Alternative brands offer analogues with comparable characteristics:
| Brand | Article (left/right) | Type | Average price, rubles | Features |
|---|---|---|---|---|
| ZF Sachs (original) | 6Q0 513 025 J/6Q0 513 026 J |
Gas-oil | 11 000โ13 000 | Optimal service life (120โ150 thousand km), soft operation |
| Boge | S50-18-0001/S50-18-0002 |
Gas-oil | 7 500โ9 000 | Good price/quality ratio, suitable for urban use |
| Monroe | E3616/E3617 |
Gas | 8 000โ9 500 | Increased rigidity, recommended for a sporty driving style |
| Kayaba (KYB) | 349043/349044 |
Gas-oil | 6 500โ8 000 | Budget option, resource ~80 thousand km |
| Bilstein | B4 22-180088/B4 22-180089 |
Gas | 12 000โ14 000 | Premium quality, service life up to 200 thousand km, rigid tuning |
For Octavia Tour with all-wheel drive (4x4 Haldex) it is recommended to install racks with reinforced rods (for example, Bilstein B6 or Monroe E3616), since the load on the rear axle is higher due to torque distribution.
When purchasing racks, check availability set of bushings and anthers โ many analogues have them separately, which increases the final cost of replacement.
Step-by-step instructions for replacing rear struts on an Octavia Tour
Replacing rear shock absorbers with Octavia Tour requires a minimum set of tools and can be done in a garage in 2โ3 hours. The main thing is to maintain consistency and not break suspension geometry.
Required tools:
- ๐ง Jack and supports (it is strictly forbidden to work on one jack!).
- ๐ง Set of sockets and keys (required)
T45andT50for attaching the rack to the body). - ๐ง Spring remover (if you plan to disassemble the strut).
- ๐ง Torque wrench (upper fastening torque -
55 Nm). - ๐ง Penetrating lubricant (WD-40 or Liqui Moly).
Step-by-step algorithm:
- Preparation: Secure the front of the car with the handbrake and chock the front wheels. Loosen the rear wheel nuts, but do not remove them.
- Lifting the car: Raise the rear section on a jack and place it on supports. Remove the wheel.
- Removing the rack:
- Unscrew the two bolts securing the rack to steering knuckle (bottom mount).
- In the cabin, remove the plastic plug and unscrew the nut of the upper pillar fastening (you will need a wrench
T50). - Remove the strut assembly with the spring.
- Installing a new rack:
- If the strut was purchased without a spring, remove the old spring using a puller.
- Install the new rack in reverse order. Important: Tighten the upper mounting nut only after the car is lowered onto the wheels (otherwise the spring will remain compressed).
โ๏ธ Checklist before replacing racks
โ ๏ธ Attention: On models Octavia Tour with the system DSG before replacing racks be sure to disconnect the battery for 10 minutes. This will reset the mechatronics adaptations that may go astray due to changes in body height.
Common replacement mistakes and how to avoid them
Even experienced car owners make mistakes when replacing rear struts with Octavia Tour, which leads to premature failure of components or deterioration of controllability. Let's look at the most common ones:
1. Incorrect tightening of fasteners
The upper rack mounting nut must be tightened to a torque 55 Nm, and the lower mounting bolts - 100 Nm. Excessive torque leads to thread failure, and insufficient tightening leads to backlash and knocking. Use a torque wrench!
2. Ignoring the condition of bushings and boots
Many people install new racks, but leave the old ones rubber bushings or torn anthers. This reduces the life of the shock absorber by 2โ3 times. The bushings should be elastic, without cracks, and the boot should be without tears.
3. No bleeding of racks before installation
Gas-oil struts (for example, Sachs or Boge) require bleeding before installation. To do this:
- Turn the rack upside down.
- Squeeze and hold for 3-5 seconds.
- Turn over to working position and repeat 3-4 times.
An unpumped strut can give water hammer in the first 100 km.
4. Failure to follow the assembly sequence
On Octavia Tour with rear disc brakes When removing the strut, the brake hose often gets caught. This may cause it to become bent or damaged. Always secure the hose with wire to prevent it from sagging.
What happens if you do not replace the support bearing along with the strut?
The support bearing wears out at the same time as the strut, but many people do not replace it. This leads to:
- To the grinding when turning the steering wheel (especially when the car is stationary).
- Uneven wear front tire tread.
- Vibrations on the steering wheel when driving over uneven surfaces.
It is recommended to change the bearing every 100โ120 thousand km, even if it looks normal outwardly.
Comparison of rack life: original vs analogues
Rear shock absorber service life Octavia Tour depends on driving style, road quality and vehicle load. On average, original racks Sachs serve 120โ150 thousand km, while budget analogues (Kayaba) rarely exceed 80 thousand km.
Factors affecting the resource:
- ๐ Car loading: Constant overload (for example, towing a trailer) reduces the life of the struts by 30โ40%.
- ๐ฃ๏ธ Road quality: Driving on dirt roads or potholes at high speed increases the load on the shock absorbers by 5โ7 times.
- ๐ก๏ธ Temperature: In cold weather (-20ยฐC and below), the oil in the struts thickens, which accelerates the wear of the seals.
- ๐ง Condition of other suspension elements: Worn silent blocks or ball joints transmit additional vibrations to the racks.
For clarity, letโs compare the resources of popular brands:
| Brand | Average resource, thousand km | Warranty | Wear Features |
|---|---|---|---|
| ZF Sachs (original) | 120โ150 | 2 years | Gradual deterioration of damping, rarely leaks |
| Bilstein | 150โ200 | 3 years | Maintains rigidity until the end of its service life |
| Monroe | 90โ110 | 1 year | They may start to โleakโ after 80 thousand km |
| Kayaba (KYB) | 70โ90 | 6 months | Lose effectiveness quickly on uneven surfaces |
| Boge | 100โ120 | 1.5 years | Moderate rigidity, rarely fails suddenly |
Interesting fact: on Octavia Tour with engines 1.8 TSI and 2.0 TSI struts wear out 15โ20% faster due to higher torque and, as a result, increased load on the rear axle during acceleration.
1. Check their condition every 20 thousand km (visually and at the end).
2. Avoid sudden starts from a standstill (especially with a trailer).
3. Use racks of the same brand on both sides (different stiffness leads to imbalance).-->
How to check struts without removing them: 3 diagnostic methods
It is not always possible to lift the car on a lift or remove the racks for inspection. In such cases, you can use express diagnostic methods that will give an idea of โโthe condition of the shock absorbers.
1. The "swinging" method
Click on the rear bumper Octavia Tour with a force of 30โ40 kg and release sharply. In good condition, the body should make no more than 1โ1.5 vibrations. If the rocking continues longer, the racks are worn out.
2. Visual inspection
Please note:
- ๐ Oil stains on the strut body (indicating the destruction of the oil seal).
- ๐ Corrosion on the rod - even small scratches lead to oil leakage.
- ๐ Boot condition - if it is torn, dirt gets inside the rack.
3. Braking distance test
On a dry road, accelerate to 60 km/h and brake sharply. If the rear of the vehicle squats too much or feels collapse on one side โ the racks require replacement. For Octavia Tour A โpeckโ of the nose of no more than 30โ40 cm is considered normal.
Additional test for models with DSG: when driving on an uneven road at a speed of 40โ50 km/h, the gearbox should not switch down suddenly. If this happens, the struts cannot cope with damping, and the electronic unit DSG perceives body vibrations as a need to increase traction.
FAQ: Frequently asked questions about Octavia Tour rear struts
Is it possible to install racks on only one side?
No, this is absolutely not recommended. Even if one strut is in good condition, different shock absorber stiffness will lead to uneven suspension response and deterioration in controllability. Always change stands in pairs.
Which brand of struts is better to choose for a quiet ride?
Optimal for urban use ZF Sachs (original) or Boge โ they provide soft damping and low noise levels. If your budget is limited, you might consider Kayaba, but their resource will be lower.
Do I need to do a wheel alignment after replacing the struts?
On Octavia Tour replacing rear struts no effect on camber angles, since they are not adjustable (unlike the front suspension). However, if you notice the vehicle pulling to the side, check toe - it could get lost due to the displacement of the steering knuckle during dismantling.
What should I do if a knocking noise appears after replacing the struts?
Knocking can occur for several reasons:
- Insufficient tightening of fasteners (check torque
55 Nmfor the top nut). - Worn support bearing (if it has not been replaced).
- Damage to the strut boot (dirt may get into it).
- Incorrect installation of the spring (it should rest against special protrusions on the cup).
Eliminate the cause and recheck the fastenings.
How much does it cost to replace rear struts at a service station?
The cost of work varies depending on the region:
- Replacing one rack: 1,500โ2,500 rubles.
- Replacing a pair of struts with springs: 3,000โ5,000 rubles.
- Additionally, a fee may be charged for bleeding the struts (300โ500 rubles) and adjusting the wheel alignment (1,000โ1,500 rubles).
At official dealerships ล KODA the price is 30โ40% higher, but they provide a guarantee on the work.