Vehicle operation Skoda Octavia Tour requires regular attention to critical components, among which the brake system occupies one of the key places. The rear brake discs on this model are often perceived by drivers as a secondary element, which is a serious mistake. It is on their condition that the effectiveness of deceleration, the stability of the carβs behavior in turns and safety during emergency braking depend.
Body Feature Octavia Tour is that many copies are equipped with drum brakes at the rear, but there are modifications with disc mechanisms. If you are the owner of a version with disks, then their timely replacement becomes a mandatory procedure. Ignoring wear will lead to overheating of the calipers, destruction of the guides and, in the worst case, complete failure of the brakes at high speeds.
Signs of wear and diagnostics of disk condition
The first signal indicating the need for replacement is a change in the way the brake pedal operates. If, when pressed, you feel a beating or vibration transmitted to the steering wheel and body, this is a sure sign that the surface brake disc deformed. Such deformation often occurs due to overheating and subsequent uneven cooling of the metal.
Visual inspection allows you to identify more obvious defects. Deep grooves, grooves and cracks on the working surface do not allow the pads to provide the necessary friction. It is also worth paying attention to the presence of a bluish tint on the metal - this indicates that the disk has repeatedly been subjected to critical overheating, which changes its microstructure and reduces strength.
- π¨ A grinding or metallic clanging sound when braking indicates critical pad wear and scuffing on the disc.
- π¨ Increased braking distance even with normal tire pressure.
- π¨ Uneven wear of brake dust on wheel rims.
Often the problem lies not only in the metal itself, but also in the fastening mechanism. Dirt-clogged caliper guides can cause uneven pad pressure, which accelerates wear on one side of the disc. Regularly checking the condition of the lubrication on the guides is the key to a long life of the brake system.
β οΈ Caution: If you notice vibration only when braking at high speeds, do not delay diagnosis. Even a slight distortion of the disc can lead to loss of control over the car during a sudden maneuver.
Compatibility and selection of suitable drives
Selection rear brake discs for Skoda Octavia Tour requires a careful approach to technical characteristics. Despite the fact that the model has been produced for a long time, there are different platforms and types of suspension that affect the dimensions of the parts. An error in choosing the diameter or thickness can lead to the fact that the wheel simply will not fit on the caliper or, conversely, the caliper will dangle.
An important parameter is the type of disk: ventilated or non-ventilated. For rear wheels on most versions Octavia Tour solid (unventilated) discs are used, since the load on them is less than on the front. However, in sports equipment or on powerful engines, ventilated options may occur. Check this point before buying by checking the VIN code of your car.
- π‘ Original (OEM) β provides perfect geometry and durability, but costs significantly more than its counterparts.
- π‘ Quality brands (Brembo, Zimmermann, TRW) β an excellent balance of price and quality, often surpass the original in resource.
- π‘ Budget analogues are permissible only for a quiet ride, require frequent testing for beating.
Pay attention to the presence of holes under the wear sensor and fastening of the brake caliper. Some discs have special grooves for the removal of gases and moisture, which improves the efficiency of braking in rainy weather. When choosing between a perforated and cut disc for urban use, it is better to opt for the standard smooth version to avoid premature wear of the pads.
- Original Skoda
- Brembo/ATE
- Zimmermann
- Budget analogue
Tools and preparation for replacement
The process of replacing rear brake discs with Octavia Tour It does not require complex specialized equipment, but the basic tool set should be complete. You will need a jack, reliable stands for security, a set of heads and keys, as well as a special remover for removing the caliper. Without the right tools, you can damage the thread or break the mount bolts.
Pay special attention to the preparation of the place of work. The car should stand on a flat surface and the handbrake should be released if you are working with the rear axle. For convenience, it is recommended to remove both rear wheels to have access to the mechanisms on both sides. This will also allow you to check the status of the second drive while you are busy with the first one.
- π οΈ Headset: 13, 16, 17, 19 mm (depending on the year of production).
- π οΈ Balloon key and jack with stands.
- π οΈ Brake cleaner and lithium lubricant.
Before starting work, be sure to inspect the brake hoses for cracks and scuffs. Old rubber tubes can burst under pressure when pressed on the pedal after replacing the discs. If the hoses have signs of aging, it is better to replace them immediately while the wheels are removed.
βοΈ Preparing to replace drives
Step-by-step replacement instructions
Start the process by removing the wheel. Unscrew the caliper mount bolts, which are usually located on the back side. Carefully hang the caliper on the wire so as not to damage the brake hose. Then remove the old pads and unscrew the guides holding the caliper to the swivel fist.
The most difficult step is to remove the disc itself. On some models, it can be boiled or fixed by a screw. Use a special detacher or gently tap the disc with a hammer through a wooden spacer so as not to damage the surface. If the disc is held on the screw, first unscrew it, and then remove the disk.
Important: Do not use excessive force when removing the disc, so as not to damage the hub bearing.Clean the seat on the hub from rust and dirt. Apply a thin layer of copper lubricant to the central ledge, but avoid grease hitting the working surface. Install a new disk, fix it with a screw and assemble the node in reverse order. Donβt forget to squeeze the caliper piston before installing new pads.
β οΈ Attention: When compressing the caliper piston, be sure to open the tank of brake fluid. If the fluid level is too high, it can spill out when the piston expands.
What to do if the disk attachment screw is stuck?
If the screw does not unscrew, apply penetrating lubricant and leave for 15-20 minutes. You can try to warm up the place of attachment with a building hairdryer, but do not use an open fire so as not to damage the rubber elements of the brake system.
The nuances of servicing the brake system
After installing new discs, the brakes must be properly run. In the first 200-300 kilometers, avoid extreme braking and extreme loads. This will allow the pads and discs to get tucked into each other, providing maximum contact area. Sharp braking during the run-in period can lead to local overheating and deformation of the new disk.
Regular checks of brake fluid are also important. When replacing the discs, the level of liquid in the tank may change due to compression of the pistons. Make sure the level is between the MIN and MAX tags. Use only a liquid recommended by the manufacturer, such as DOT 4, and change it every two years, as it is hygroscopic and absorbs moisture from the air.
- π Check the condition of the anther guides after each replacement disk.
- π Make sure that new shoes do not creak in the first days of operation.
- π Control the uniformity of wear of the pads on both wheels.
Sometimes, after the discs are replaced, adjustment of the hand brake may be required, especially if a drum mechanism is used inside the hub. Incorrect settings can lead to the fact that the car will spontaneously brake or, conversely, the handbrake will not keep the car on a slope.
Properly running new discs and pads is critical for their durability and braking efficiency in the future.
Comparative characteristics of popular brands
The auto parts market offers many options for Skoda Octavia Tour. The choice between brands often depends on budget and driving style. Original from Skoda Always ensures compliance with factory standards, but overpayment for a logo can be substantial. Alternative manufacturers often offer technologies that are superior to original solutions.
Company Brembo It is known for its sports solutions, but the line for civilian cars is of high quality. Discs. Zimmermann They have excellent anti-corrosion coating, which is important for regions with aggressive chemicals on the roads. TRW offers reliable solutions at an average price, suitable for everyday use.
| Brand | Coverage type | Resource (km) | Price |
|---|---|---|---|
| Skoda Original | Galvanic | 40 000 - 60 000 | High |
| Brembo | Anti-corrosion | 50 000 - 70 000 | Average |
| Zimmermann | Ceramic | 60 000 - 80 000 | Medium/High |
| TRW | Galvanic | 40 000 - 55 000 | Average |
When choosing, also take into account the feedback of owners of specific years of release. Sometimes a batch of original discs may have defects, and an alternative brand may be more reliable in a particular case. Studying forums and profile communities will help to make an informed decision.
Before buying discs, be sure to check the production date. Older drives, even if new, can have microcracks due to improper storage in stock.
Common replacement mistakes and how to avoid them
One of the most common mistakes is to install disks without cleaning the seat. Mud and rust between the disc and the hub lead to wheel beat and vibration when braking. This will negate all efforts to replace new parts. Careful cleaning of the hub with a metal brush is mandatory.
Another mistake is the wrong tightening of the wheel mount bolts. Too weak a puff can lead to spinning of the wheel on the go, and too strong - to deformation of the disk or damage to the studs. Use the dynamometer key to comply with the recommended tightening moment specified in the service book.
- β Ignoring replacement of brake pads along with discs.
- β The lubricant hits the working surface of the disc or pads.
- β Refusal to pump the brake system when changing fluid.
It is also important not to forget about the disk attachment screw. If it is not installed, the disc may shift and damage the caliper or other suspension elements. Use a new screw if the old one is damaged, as it often has a thread with a lock.
β οΈ Warning: Never use old pads with new discs. This will lead to rapid wear of new discs and deterioration of brake characteristics.
Careful preparation of surfaces and the right moment of tightening of bolts is the key to safe and durable operation of the brake system.
FAQ: Questions and answers
Is it possible to change only one rear disc?
It is not recommended to change only one disk. Wear of the brake system occurs unevenly, and the installation of a new disc on one side can lead to uneven braking and skidding of the car. Always change the discs as a pair.
How often should I change the rear brake discs on the Octavia Tour?
The average life of the rear wheels is 40-60 thousand kilometers, but this depends on the driving style, operating conditions and the quality of the road surface. Regularly checking the thickness of the disc when replacing the pads will help determine the exact replacement time.
What to do if a squeak appears after replacement?
Scream can be caused by poor-quality pads, dirt hit or lack of laundry. Check for lubrication on the guides and clean the surface of the disk. If the creak has not disappeared, you may need to replace the pads with better quality ones.
Do I need to change brake fluid when replacing discs?
Replacing the discs does not require replacing the fluid if it has recently changed. However, if you change the pads and compress the pistons, the fluid level may change. It is recommended to check the condition of the liquid and change it every 2 years, regardless of the mileage.
Can I grind the back discs instead of replacing them?
Grinding is possible only if the residual thickness of the disk allows you to do this without breaking the strength. For Octavia Tour It is often more cost-effective to install a new disk immediately, since grinding reduces the resource and does not always eliminate deep defects.