ล KODA Octavia A5 - one of the most popular models of the Czech brand, known for its reliability and comfort. However, even with such a car, key suspension elements wear out over time, including shock absorber struts. Their malfunction not only impairs controllability, but can also lead to serious damage to other components.
In this article we will look at everything you need to know about shock absorber struts on Octavia A5: From signs of wear to step-by-step replacement instructions. You will learn how to choose original parts or high-quality analogues, what tools are needed for the job, and what to look for when diagnosing. And also - why on Octavia A5 with 1.8 TSI and 2.0 TDI engines the struts fail 20-30% faster than on versions with naturally aspirated engines.
Signs of faulty shock absorber struts on Octavia A5
Shock absorber struts on Octavia A5 rarely fail suddenly - usually it is a gradual process that can be noticed by characteristic symptoms. The main thing is not to ignore the first โbellsโ, since driving with worn struts increases the braking distance by 15-20% and accelerates the wear of tires, wheel bearings and silent blocks.
Key signs to look out for:
- ๐ด Deterioration in handling โ the car โfloatsโ in turns, reacts to the steering wheel with a delay, especially at high speeds.
- ๐ด Body rocking after driving over bumps (the car โnodsโ bow or stern for a long time).
- ๐ด Uneven tire wear - protectors wear off in spots or on one side.
- ๐ด Knocks and squeaks in the front or rear suspension when driving over speed bumps.
- ๐ด Oil leaks on the rack body (visible upon visual inspection).
- ๐ด Increased roll when cornering, there is a feeling of โrollinessโ.
Problems are especially critical in Octavia A5 with sports suspension (optional) Sport Chassis) - here the racks work in a more rigid mode and lose efficiency faster. If you notice at least 2-3 signs from the list, itโs time to make a diagnosis.
โ ๏ธ Attention! On Octavia A5 with all-wheel drive (4x4 Haldex) worn rear struts can cause the Haldex coupling to overheat due to excessive body vibrations. This can lead to costly transmission repairs.
Original stands vs analogues: what to choose for Octavia A5?
When replacing racks with Octavia A5 the owner is faced with a choice: to install original parts from ล KODA/VW or high-quality analogues from third-party manufacturers. Both options have their pros and cons.
Original racks (see the table below for articles) guarantee full compliance with factory parameters, but their price can be steep - from 8,000 to 15,000 rub. per piece. An alternative is analogues from trusted brands, which are often not inferior in quality, but cost less. 30-50% cheaper.
| Position | Original article | Analogs (recommended) | Approximate price, rub. |
|---|---|---|---|
| Front left/right strut | 1Z1 413 031 J / 1Z1 413 032 J |
Boge (811 106), Sachs (315 144), Kayaba (339302) | 6 500 โ 12 000 |
| Rear left/right strut | 1Z1 513 025 / 1Z1 513 026 |
Monroe (E3486), KYB (339053), TRW (JTS634) | 5 000 โ 9 500 |
| Front strut support | 1Z1 412 309 A |
Febi (22630), Lemforder (31393 01) | 2 500 โ 4 000 |
| Boot + bumper | 1Z1 412 183 C |
Corteco (22037008), SKF (VKDA 35600) | 800 โ 1 500 |
When choosing analogues, pay attention to:
- ๐ง Shock absorber type: for Octavia A5 only suitable gas-oil or gas racks (oil ones will not provide the required rigidity).
- ๐ง Availability of certificate (for example,
TรVorECE R90). - ๐ง Complete set: Some brands sell stands without supports or boots - this is an additional expense.
โ ๏ธ Attention! On Octavia A5 RS (with 2.0 TFSI engine) racks with unique rigidity characteristics are installed. Installing โregularโ struts from the basic version will lead to worse handling at high speeds.
- Only original
- High-quality analogues (Boge, Sachs, KYB)
- Budget analogues (for example, Fenox, Trialli)
- I don't know, I've never changed it
Diagnostics of shock absorber struts: how to check without a service station?
Check the condition of the racks Octavia A5 you can do it yourself, without resorting to the help of a service. This requires minimal tools and knowledge of key inspection points.
Visual inspection:
- Raise the car on a lift or drive it into a viewing hole.
- Inspect the rack housing for oil smudges (especially at the top).
- Check integrity anthers and fenders - cracks or tears will lead to rapid wear.
- Please note support bearings (if they โcrumbleโ or play, itโs time to change them too).
Sway test:
- Press sharply on the front/rear corner of the body (above the wheel) and release.
- If the machine does more than 1-2 fluctuations - the stand is faulty.
- Repeat the test on all four corners.
Checking the backlash:
- ๐ฉ Grab the counter with your hand and try to rock it up and down. Backlash more 2-3 mm - a sign of wear.
- ๐ฉ Check the mounting of the stand to steering knuckle โ loose bolts can simulate a malfunction.
If after replacing the racks with Octavia A5 There is a knock in the suspension, check the tightening torque of the mounting bolts. For the front pillars it should be 50 Nm + 90ยฐ, for the rear - 70 Nm.
Step-by-step instructions for replacing the front struts on an Octavia A5
Replacing the front struts with Octavia A5 - a task of medium complexity that requires accuracy and special tools. If you are not confident in your abilities, it is better to entrust the work to professionals. But if you decide to do it yourself, follow these instructions.
Required tools:
- ๐ง Jack and supports (or lift).
- ๐ง Set of sockets and keys (especially
13 mm, 16 mm, 18 mm). - ๐ง Spring puller (required!).
- ๐ง Torque wrench (for proper tightening).
- ๐ง WD-40 or similar penetrating lubricant.
Work order:
- Raise the car and remove the wheel.
- Unscrew the fastening nut anti-roll bar to the counter (if in the way).
- Disconnect brake hose from the bracket on the rack.
- Unscrew the two bolts securing the rack to steering knuckle (
18 mm). - In the engine compartment, unscrew the three mounting nuts rack supports to the body (
13 mm). - Remove the strut assembly with the spring.
- With spring puller compress the spring and disassemble the strut (unscrew the rod nut).
- Replace the strut, support, boot and bump stop (if necessary).
- Reassemble everything in reverse order, observing the tightening torques.
Lubricate the threads of the mounting bolts|Check the condition of the wheel bearing|Make sure that the spring is facing the correct side (mark up)|Tighten the rod nut with a torque wrench (50 Nm)-->
After replacement necessarily do wheel alignment โ even if you didnโt touch the tie rods, the suspension geometry could change.
What should I do if the strut does not come out of the steering knuckle?
If the post is stuck to the knuckle, do not hit it with a hammer - this may damage the threads. Instead:
1. Treat the connection with WD-40 and wait 10-15 minutes.
2. Use a puller or pry bar to carefully press out the post.
3. As a last resort, heat the joint with a hair dryer (but do not overheat!).
Features of replacing rear struts on Octavia A5
Rear pillars Octavia A5 They are easier to change than the front ones, but there are some nuances here. The main difference is the lack of Dinners are in the structure (it is separated and attached to the body), so there is no need to disassemble the rack.
Work order:
- Lift the rear of the car and remove the wheel.
- Unscrew the lower bolt securing the strut to suspension arm (
18 mm). - In the trunk, bend the trim and unscrew the top nut securing the strut (
15 mm). - Pull the stand down.
- Install a new rack after checking the condition compression progress buffer.
- Tighten the bolts to torque
70 Nm(lower) and25 Nm(top).
On Octavia A5 Combi (station wagon) the rear pillars experience greater load due to the increased weight of the body. Here it is recommended to choose racks with reinforced body (for example, KYB Excel-G or Boge Turbo Gas).
โ ๏ธ Attention! When replacing rear struts with Octavia A5 with the systemEDS(electronic differential lock) be sure to turn off the ignition! Otherwise, the control unit may record an errorP1850.
Cost of replacing racks at a service station vs self-repair
Price for replacing racks Octavia A5 in service depends on the region and level of the service station. On average the prices are:
| Type of work | Cost, rub. (for 1 rack) | Working hours |
|---|---|---|
| Replacing the front strut | 2 500 โ 4 000 | 1.5 โ 2 hours |
| Replacing the rear strut | 1 800 โ 3 000 | 1 โ 1.5 hours |
| Replacing the rack support | 1 000 โ 1 500 | 30 โ 40 minutes |
| Wheel alignment (after replacement) | 1 500 โ 2 500 | 30 minutes |
Replacing it yourself will save you money. 50-70% from the cost of the work, but will require:
- ๐ฐ Purchase or rental of tools (spring puller, torque wrench).
- ๐ฐ Time consumption (the first replacement may take 4-5 hours).
- ๐ฐ Risk of errors (for example, incorrect tightening of nuts or damage to the boot).
If you have never repaired a suspension, it is better not to experiment - mistakes when replacing struts can lead to loss of control at speed.
Savings on wheel alignment after replacing struts will result in uneven tire wear and deterioration in handling. This procedure is required!
Common mistakes when replacing struts on Octavia A5
Even experienced car owners sometimes make mistakes when replacing struts. Here are the most common of them:
- โ Using a faulty spring puller - this can lead to spring โshootingโ and serious injury.
- โ Tightening nuts without a torque wrench โ overtightened bolts burst, undertightened ones lead to backlash.
- โ Installation of racks without replacing supports and bumpers - worn parts will negate the effect of new shock absorbers.
- โ Not checking wheel bearings โ if they play, they need to be changed along with the racks.
- โ Failure to follow the assembly order - for example, they forget to install a washer under the rod nut.
Another common mistake is buying racks not that type. For example, on Octavia A5 with engine 1.6 FSI sometimes they install racks from the version with 1.8 TSI, which have a different rigidity. This leads to discomfort while driving and accelerated wear of other suspension elements.
FAQ: Answers to frequently asked questions about stands on Octavia A5
How long do the racks on the Octavia A5 last?
The service life of the racks depends on the operating conditions:
- ๐ City mode (asphalt, rare pits) - 80,000 โ 120,000 km.
- ๐ Mixed mode (city + highway) โ 60,000 โ 90,000 km.
- ๐ Aggressive riding (sporty style, bad roads) โ 40,000 โ 60,000 km.
On Octavia A5 RS and versions with DCC (adaptive suspension) struts fail at 20-30% faster due to increased loads.
Is it possible to drive with faulty struts?
Technically yes, but it is extremely dangerous:
- ๐จ Increases braking distance on 15-20%.
- ๐จ Risk aquaplaning on a wet road it increases by 2-3 times.
- ๐จ Wear accelerates tires, silent blocks and wheel bearings.
- ๐จ At a higher speed 100 km/h the car may become uncontrollable.
If the strut is leaking or knocking noises appear, replace it within 1-2 weeks.
Do I need to change the racks in pairs?
It is recommended, but not always required:
- โ Front struts It is better to change them in pairs - this will ensure uniform behavior of the car.
- โ If one rack is โdeadโ and the second is in good condition, you can only replace it, but after 10,000 โ 15,000 km check the second one.
- โ Can't bet one new rack, and the second one left worn out - this will lead to suspension imbalance.
Which struts are better for the Octavia A5: gas or gas-oil?
The choice depends on your driving style:
- ๐ง Gas-oil (Boge Pro-Gas, Sachs Super Touring) - softer, more comfortable for the city, but less stable at high speeds.
- ๐ง Gas (KYB Excel-G, Monroe OESpectrum) - stiffer, hold the road better, but transmit more vibrations to the cabin.
For most owners Octavia A5 optimal choice - gas oil struts with enhanced characteristics (for example, Boge Turbo Gas).
Is it possible to restore shock absorber struts?
Theoretically yes, but in practice it is inappropriate:
- ๐ง Bulkhead (replacing seals, adding oil) will cost 60-70% from the cost of a new rack.
- ๐ง Quality of refurbished racks not guaranteed - they can leak through 5,000 โ 10,000 km.
- ๐ง Modern racks (especially with
DCC) have non-demountable design.
Exception - vintage or rare models, where new racks are difficult to find. In all other cases, it is better to buy new ones.