Braking performance is fundamental to the safety of any vehicle, and the crossover Skoda Kodiaq is no exception. Considering the significant mass of this SUV and its dynamic characteristics, the standard braking system experiences enormous loads at every stop.
Owners are often faced with the need to replace consumables, but do not always understand how to choose the right components. Wrong choice or untimely replacement can lead to critical consequences on the road.
Design features of the Kodiaq brake system
Brake system Skoda Kodiaq designed to meet the safety requirements of a large crossover. Ventilated discs are installed on the front axle, which effectively dissipate heat during heavy braking. The rear axle is usually equipped with smaller diameter discs, although on all-wheel drive versions with powerful engines they can also be ventilated.
The key element is the material from which the brake disc is made. Factory components often have a special coating to protect against corrosion, which quickly wears off in the work area. This is a normal phenomenon and indicates that the material is operating normally.
It is important to understand that ventilated design plays a crucial role in preventing overheating. Two plates connected by stiffening ribs inside create an air flow that cools the friction surface. Without this feature Skoda Kodiaq could suffer from the brake fluid "boiling" effect on long descents.
Signs of wear and condition diagnosis
You can determine the need for replacement not only by mileage, but also by indirect signs. If, when you press the brake pedal, you feel the steering wheel beating or the entire front suspension vibrating, this is a sure signal that the discs are deformed. These defects are called disc runout and are caused by uneven wear or thermal stress.
A visual inspection also provides a lot of information. Deep grooves, scratches or chips on the working surface are unacceptable. If the disk has a โstepโ along the edge, it means that the wear of the working area significantly exceeds the permissible standards. Disc thickness must meet factory specifications, otherwise the brake caliper will not be able to provide the required force.
Strange sounds such as grinding or metallic clanging often indicate that the brake pad has worn down to the metal. In this case, the disk suffers irreversible damage. Ignoring the grinding noise can lead to destruction of the caliper pistons and complete loss of brakes on one of the axles.
The vibration of the brake pedal when pressed is also an alarming symptom. This may indicate that the disk has warped due to overheating. In such a situation, replacement is mandatory, since even a new pad will not be able to effectively adhere to the uneven surface.
- Original (OEM)
- Premium analogues
- Budget analogues
- I don't know, I choose by price
Manufacturer selection and disc types
The auto parts market offers a huge selection of options for Skoda Kodiaq. Original from Skoda or Volkswagen - This is a guarantee of quality, but often an inflated price. Manufacturers often purchase products from the same factories as the assembly lines, but package them in their own boxes.
Premium analogues from brands like Brembo, ATE, TRW or Textar often surpass the original in characteristics. For example, some models have an improved gas exhaust system and a more resistant coating against corrosion. Perforated discs They remove wear products better, but they may be less durable on our roads.
If you choose the budget segment, be extremely careful. Cheap soft metal counterparts wear out quickly and can crack from thermal shock. Always check for quality certificates and reviews of a specific batch of goods. Brake system - this is the part of the car on which you absolutely cannot save.
What is the difference between ventilated and non-ventilated drives?
Ventilated discs consist of two plates with channels inside for air circulation, which allows heat to dissipate during intense braking. Non-ventilated ones are a single plate, they are used on less loaded axles or small cars. For Kodiaq, ventilated discs are required on the front axle, and on the rear they depend on the configuration and engine.
Table of disk sizes and parameters
When selecting brake discs, it is important to consider not only the diameter, but also many other parameters. The wrong choice can lead to the fact that the disc simply will not fit on the hub or will touch the caliper. Below are the main parameters for various modifications Skoda Kodiaq.
Pay attention to the thickness of the new disc and the minimum permissible thickness. If the disk is worn to the limit, its further use is prohibited. Also important is the diameter of the center hole (DIA) and the number of mounting holes (PCD).
| Parameter | Front axle | Rear axle | Unit of measurement |
|---|---|---|---|
| Disc diameter | 340 / 350 | 300 / 310 | mm |
| New disc thickness | 28 / 30 | 22 / 24 | mm |
| Min. thickness (wear) | 26 / 28 | 20 / 22 | mm |
| Hub Diameter (DIA) | 65.1 | 65.1 | mm |
| Mount (PCD) | 5x112 | 5x112 | mm |
Always check the part number with the vehicle's VIN code, as different model years and Kodiaq trim levels may use different sizes of brake discs.
DIY replacement instructions
Replacing brake discs is a task that most car owners can handle if they have a basic set of tools. The process requires care and compliance with safety precautions. It is better to carry out work on a flat surface using a jack and safety stands.
First you need to dismantle the wheel and unscrew the caliper guides. Please note that the caliper should not be left hanging from the brake hose, but must be hung on a wire or hook. This will prevent damage to the hose and brake fluid leakage. Brake pads also needs to be removed.
Next, the bolt securing the disk to the hub is unscrewed. If the disc gets stuck, use a hammer to lightly tap the end of the disc (not the work surface!). Install a new disk, having previously degreased its seats. Tighten the caliper bolt and install the pads.
โ๏ธ Check before installation
Pay special attention to the running-in process. After installing new discs and pads, it is necessary to perform the lapping procedure. This will take about 200-300 km. During this period, avoid sudden braking and stopping at high speed.
Before driving, be sure to check the operation of the brakes. The pedal should be elastic and not fall through. If the pedal is soft, there may be air left in the system and will require bleeding. Bleeding the brakes - a critical step if you have disconnected hoses or changed calipers.
Before installing a new disc, thoroughly clean the hub from corrosion with a wire brush. This will ensure a perfect fit of the disc and prevent runout.
โ ๏ธ Caution: Never use brake fluid from an open container for more than 6 months as it is hygroscopic and absorbs moisture, which lowers the boiling point and impairs braking.
Operating rules and service life extension
The durability of brake discs directly depends on driving style and operating conditions. Avoid โdirtyโ driving: sharp acceleration and equally sharp braking. Overheating is the main enemy of metal, leading to cracks and deformation.
Do not leave your vehicle with the parking brake on for long periods of time if you have recently braked heavily. Residual heat can cause the pads to โstickโ to the disc, making it impossible to remove the wheel. In such cases, it is better to use wheel stands.
Regularly cleaning the brake system after winter or muddy driving helps prevent corrosion and seizing of the caliper guides. Use special brake cleaners that do not leave greasy marks on the working surface. Caliper guides must be lubricated with a special high-temperature grease every time the pads are replaced.
โ ๏ธ Attention: If you are driving on a wet surface or through a puddle, you will need to brake several times after driving to remove water from the discs and restore braking effectiveness.
Comparison of materials and technologies
Modern manufacturers use various technologies to improve the performance of disks. Ceramic discs are highly resistant to overheating and generate almost no dust, but their cost is very high. They are often installed on sports versions or as an option.
Cast iron discs with graphite coating are the golden mean in terms of price and quality. This coating protects against corrosion on non-working surfaces and extends service life. For Skoda Kodiaq This is the optimal choice for everyday use in urban environments.
Forged alloy wheels are rare and are usually a tuning solution. They are lighter than cast iron, which reduces unsprung weight, improving handling. However, their fragility when hitting curbs makes them less reliable on our roads.
What is brake dust and how to deal with it?
Brake dust is formed as a result of wear on the pads and discs. It contains metal and soot particles that settle on the wheels. To protect against it, special wheels with perforations or grooves are used, as well as frequent wheel washing. Some owners install ceramic pads, which generate almost no dust.
Frequent errors during replacement and maintenance
One of the most common mistakes is replacing only one drive. This is a gross violation of the operating rules. Brake discs must be replaced in pairs on the same axle to ensure uniform braking. Otherwise, the car will pull to the side during an emergency stop.
Another mistake is ignoring the condition of the brake pads. If you put new discs on old pads, you risk damaging the surface of the new disc. The pads must be in good condition and have sufficient friction material. Brake system works as a single mechanism.
Don't forget to replace the caliper guides and their boots. A jammed guide leads to uneven wear of the pads and overheating of the disc. This often causes vibration even on new discs. Checking the caliper should be a mandatory step for any replacement.
Always replace brake discs and pads in pairs on the same axle, even if the second disc appears intact. Differences in thickness will result in uneven braking.
FAQ: Answers to frequently asked questions
How long do brake discs last on a Skoda Kodiaq?
The resource depends on the driving style and the quality of the roads. On average, front discs last from 40,000 to 60,000 km, rear discs - from 60,000 to 80,000 km. With aggressive driving, the resource may be halved.
Is it possible to grind brake discs?
Theoretically, it is possible if the thickness of the disk allows it. However, on modern cars the thickness margin is often minimal. Grooving removes the top hardened layer, which reduces the service life. It is often cheaper and safer to replace the entire disk.
Why do brakes squeak after replacement?
The squeaking noise can be caused by a lack of lubrication on the back of the pads, poor quality pad material, or lack of lapping. Usually the squeak goes away after 100-200 km. If not, check the quality of the installation.
Do I need to change brake fluid when replacing discs?
When simply replacing discs and pads, fluid replacement is not required. However, if you have changed calipers or disconnected hoses, bleeding the system is required. It is recommended to change the fluid every 2 years, regardless of mileage.
Which discs are better: perforated or standard?
For city use, standard discs are often better, as they are more reliable and cheaper. Perforated discs remove gases and water better, but have a shorter lifespan and may be prone to cracks under impact loads.