Vehicle operation Skoda Octavia A7 requires regular attention to critical components, and the braking system occupies a paramount place here. Your safety and the safety of surrounding road users directly depends on the condition of the friction linings. Many owners think about replacing only when they hear a characteristic squeak or feel a decrease in braking efficiency, but this is already a belated reaction.
The right choice original brake pads - this is not just buying a part by catalog number, but a guarantee of compliance with factory standards for friction and heat dissipation. Counterfeits on the aftermarket often imitate the packaging, but cannot replicate the composition of the friction material, which leads to overheating of the discs and rapid wear. Owners of models with turbocharged engines, such as 1.8 TSI or 2.0 TSI, you should be especially careful, since such engines require more powerful braking force.
Design features of the Octavia A7 brake system
Braking system in Octavia A7 designed taking into account the high speed characteristics and dynamic driving characteristic of the Czech brand. The front axle is usually equipped with ventilated discs, and the rear axle is equipped with either ventilated (on powerful versions) or solid discs (on basic versions). This dictates its requirements for pad materials, which must effectively remove heat during intense braking.
The key element is friction lining, fixed on a metal base. The original parts use a special composition that ensures a stable coefficient of friction on both cold and heated discs. Incorrectly selected analogues often โgrabโ too sharply or, conversely, require a long press of the pedal, which changes the usual driving style.
It is important to consider that the system electronic parking brake (E-Brake) on the rear axle has the property of self-adjusting the gap. When replacing pads, you must use a diagnostic scanner or a special procedure to spread the caliper pistons, otherwise the mechanism may be damaged. Ignoring this feature will lead to the impossibility of installing new elements or their rapid destruction.
How to determine the authenticity of original parts
The spare parts market is full of counterfeit products that look very similar to the original, but have catastrophically low performance characteristics. Genuine packaging Skoda has clear printing, holographic stickers and unique barcodes that can be verified through the official database. The absence of security elements or blurry text on the label is a sure sign of a fake.
Inspect the pads themselves: on original products, the friction material should be uniform, without cracks, chips or foreign inclusions. Must be present on a metal base manufacturer's stamp (often branded Brembo, ATE or TRW) and logo Skoda Auto. The quality of the metal casting must be high, without burrs or sharp edges that could damage the caliper guides.
Pay attention to the presence of a wear sensor. In its original configuration, it is made of high-quality plastic and has a flexible wire that is resistant to vibrations and high temperatures. Fake sensors often break during installation or begin to signal an error immediately after installation, even if the pads are new.
- ๐ Check the holographic sticker on the box: when tilted, it should change color and display the brand logo.
- ๐ Measure the thickness of the friction layer: it should exactly correspond to the factory parameters (usually 14-16 mm for new pads).
- ๐ท๏ธ Make sure the part number is on the pad itself, and not just on the packaging.
Specifications and Compatibility
Choice original pads should be based not only on the model name, but also on the specific characteristics of the engine and drive type. For Octavia A7 There are several options for braking systems, even within the same body modification. For example, versions RS (Rapid Sport) are equipped with more powerful brakes with increased disc diameter and corresponding pads that will not fit the regular version Ambition.
The following table shows the main differences in part numbers for front and rear brakes depending on engine type and year of manufacture:
| Engine type | Year of issue | Front pads (Original) | Rear pads (Original) | Brake type |
|---|---|---|---|---|
| 1.2 TSI / 1.4 TSI | 2013-2017 | 5Q0 698 151 C | 5Q0 698 451 B | Ventilated / Solid |
| 1.8 TSI / 2.0 TSI | 2013-2017 | 5Q0 698 151 G | 5Q0 698 451 E | Reinforced ventilated |
| 1.6 TDI / 2.0 TDI | 2013-2017 | 5Q0 698 151 C | 5Q0 698 451 B | Standard |
| Octavia RS 230 | 2014-2020 | 5Q0 698 151 K | 5Q0 698 451 H | Sports (red) |
Please note that part numbers may vary by supplier (OEM), but the part number Skoda remains unchanged for a particular configuration. A mismatch in the part number may result in the pad simply not fitting into the caliper or having an incorrect angle.
โ ๏ธ Attention: Using pads from other VAG models without confirming compatibility by VIN code can lead to failure of the ABS and ESP systems.
- 1.6 MPI / 1.2 TSI
- 1.8 TSI / 2.0 TSI
- 1.6 TDI / 2.0 TDI
- Other/Don't know
Replacement procedure and installation nuances
Replacement brake pads - a procedure that requires accuracy and adherence to a certain sequence of actions. Before starting work, you need to raise the car, remove the wheel and clean the caliper from dirt and rust. Pay special attention to the guide pins: they must be lubricated with a special high-temperature lubricant to avoid misalignment of the pads and their jamming.
When installing new elements, be sure to check the condition of the brake discs. If they have deep grooves or the runout exceeds the permissible values, replacing the pads alone will not solve the problem of squeaking and vibration. Skoda Octavia A7 brake discs have a maximum permissible minimum size indicated on the end of the disc, which cannot be exceeded.
- ๐ ๏ธ Clean the caliper seats with a wire brush before installing new guides.
- ๐งด Apply a thin layer of heat-resistant lubricant to the metal plates of the pads that contact the caliper.
- ๐ง Use a scanner to return the piston to the rear position if the electronic parking brake is installed.
โ๏ธ Preparing to replace pads
After installing new pads, it is important to carry out the procedure running-in. This means that sudden braking and extreme loads should be avoided for the first 200-300 kilometers. This will allow the friction material to be evenly pressed against the disc surface, ensuring maximum braking performance in the future.
What to do if there is a squeaking noise after replacement?
If the squeak does not disappear after running-in, check that the anti-squeak plates are installed correctly and that there is grease on the contact surfaces. Sometimes lightly grinding the ends of the pads or replacing the guide pins helps.
The influence of pad quality on the performance of ABS and ESP
Modern active safety systems such as ABS (anti-lock braking system) and ESP (system of course stability), work in close conjunction with sensors of speed of rotation of wheels. These sensors read pulses from the jagged crown of the hub or disk. If the pads have a heterogeneous composition or stick to the disc, this can cause micro-slips, which the system interprets as a wheel lock.
Original Skoda The shoes are strictly certified for compatibility with the electronics of the car. They do not create unnecessary dust that could get on the sensors, and provide predictable braking force. Cheap analogues often have an unstable friction coefficient, which leads to false alarms of stabilization systems or even to them being turned off on the dashboard.
- ๐จ False ESP positives can occur due to different wear thickness of the pads on one axis.
- ๐ Decreased braking efficiency on wet roads is often associated with poor-quality friction material.
- ๐ก Errors of speed sensors can appear when using pads with metal shavings in the composition.
โ ๏ธ Warning: Do not ignore the lighted ESP/ABS lamp on the dashboard after changing the brakes - this may indicate incorrect selection of parts or their defect.
Before starting the movement after replacing the pads, smoothly press the brake pedal several times to make sure that it has become rigid and the pistons have taken the correct position.
Common mistakes when servicing the brake system
Many car owners make serious mistakes trying to save on maintenance or relying on the advice of non-professionals. One of the most common mistakes is to replace only the front pads without checking the rear brake pads. In front-wheel drive, which is Octavia A7The front axle carries the main load, but the rear pads also wear out, albeit more slowly. Ignoring their condition can lead to an imbalance of braking forces.
Another critical mistake is the use of universal lubricants for guide calipers. The usual lubricant for the chassis or engine oil at high temperatures is washed out, and the guides are jammed. This leads to the fact that one shoe is washed faster than the other, there is a skew and the characteristic smell of burning. Use only special ones. caliper lubricant (synthetic based on silicon).
Don't forget the wear sensors. If your car has an electronic sensor installed, it must be replaced along with the pads if it has already worked. Mechanical sensors (wires) also require replacement, as their wire is often rubbed or broken when the old pad is removed.
Regular check of brake discs and pads on all four wheels is the key to safe and predictable operation of the braking system.
FAQ: Answers to popular questions
How long are the original brake pads on the Skoda Octavia A7?
The service life depends on the driving style and operating conditions. On average, the front original pads serve 30-40 thousand kilometers, and the rear - 50-60 thousand kilometers. On the powerful RS versions, the resource may be smaller due to more aggressive driving.
Can I change the pads without removing the caliper completely?
Yes, it is usually enough to unscrew the lower bolt of the caliper mount and pull it upwards without disconnecting the brake hose. However, for a complete replacement of the guides and check the condition of the piston, it is recommended to remove the caliper completely.
Do I need to do a computer diagnostic after replacing the pads?
For models with electronic parking brake (E-Brake) โ mandatory. Without resetting the replacement mode through the diagnostic scanner, it is impossible to draw the piston of the rear caliper. For models with a mechanical handbrake, diagnosis is not necessary, but desirable for checking wear sensors.
Why are the new original shoes creaking?
Screaming in the first 100-200 kilometers is a normal process of earning. If the creak lasts longer, check the presence of anti-script plates, the purity of the guides and the correct installation of the pads. Sometimes a light lap helps.
How to distinguish the original pads from quality analogues?
Quality analogues (e.g. ATE, Brembo, TRW) are often produced in the same factories as the original. The main difference is in the packaging and the lack of a warranty of the car manufacturer. If you buy the original, demand a hologram and a check with the VIN code.