Rear brake pads on ล koda Octavia A7 (including restyled versions 2017-2020) - a consumable that requires attention every 30-50 thousand km depending on driving style. Unlike the front ones, the rear pads wear out more slowly, but replacing them has a number of nuances: depending on the specifics of working with electromechanical parking brake (EPB) before mandatory bleeding of the system after installing new parts. This article contains a detailed guide taking into account all the pitfalls that are relevant for Octavia A7 with motors 1.4 TSI, 1.8 TSI and 2.0 TDI.

If you notice a squeaking sound when braking, increased pedal travel, or a signal on the dashboard about pad wear (BRAKE PAD WEAR), you canโ€™t delay replacement. On Octavia A7 rear brakes are often equipped disk mechanisms with floating brackets, which simplifies the process, but requires precision during assembly. We will analyze two scenarios: replacement by car with EPB (electronic handbrake) and without him, and we will also tell you how to reset the service interval after work.

Which pads to choose: original vs analogues

Original rear pads for Octavia A7 supplies TRW (article 5Q0698451 for versions without EPB and 5Q0698451A for cars with electronic handbrake). Their average price is 3,500โ€“4,200 rub. per set per axle. However, there are worthy analogues on the market that are not inferior in quality, but are 30-50% cheaper:

  • ๐Ÿ”ง ATE (13.0460-7164.2) - soft composition, minimal disc wear, suitable for a relaxed driving style.
  • ๐Ÿ”ฅ Ferodo (FDB1836) - increased heat resistance, recommended for active driving.
  • ๐Ÿ’ฐ Textar (2585701) - budget option (about 2,000 rub.), but with a reduced resource.
  • โšก Brembo (P24063) - premium segment, ideal for sports use.

When choosing, pay attention to presence of wear sensor (if it was on the old pads) and EPB compatible. For example, pads for cars without an electronic handbrake are not suitable for Octavia A7 with EPB, since they have a different shape of the metal plate. Also check if they are included guide plates and lubrication โ€” their absence will require additional expenses.

๐Ÿ“Š What pads do you prefer to install?
  • Original (TRW)
  • ATE
  • Ferodo
  • Textar
  • Brembo
  • Others

Important point: if on yours Octavia A7 installed ventilated rear discs (optional for versions with motors 2.0 TSI and 2.0 TDI), select pads with appropriate markings. Using incompatible parts will result in uneven wear and vibration when braking.

Tools and preparation: what you need

To replace the rear pads with ล koda Octavia A7 you will need a specialized tool. Without it, the risk of damaging the caliper guides or pistons increases significantly. Here's the full list:

Tool Purpose Is it possible to replace
Caliper guide wrench (T45 or T50) Unscrewing the bracket bolts No, only original size
Caliper piston remover (or clamp with adapter) Recessing the piston into the cylinder Yes, you can use a clamp with a flat attachment
Diagnostic scanner (VCDS, OBDeleven) Resetting EPB and adapting new pads No, required for cars with electronic handbrake
Brake fluid DOT 4 Topping up when retracting the piston No, only fresh liquid
Copper caliper grease Processing the guides and the back side of the pads Yes, any high temperature grease will do

Before starting work necessarily follow these steps:

Disconnect the negative battery terminal (for safety)

Jack up the rear of the car and remove the wheel

Clean the caliper and disc from dirt (use a wire brush)

Check the brake fluid level in the reservoir (it will rise when the piston is pushed in)

If there is an EPB, activate the maintenance mode via the scanner -->

A critical mistake many car owners make: ignoring EPB adaptation after replacing pads. On Octavia A7 with an electronic handbrake, this leads to spontaneous tightening of the brakes at speed or the inability to remove the car from the handbrake. If you donโ€™t have a scanner, contact the service to reset the settings - it will take 5 minutes and save your nerves.

Step-by-step replacement: machines without EPB

On Octavia A7 Without an electronic handbrake (rare versions of the basic configuration), the process of replacing pads is simpler. Follow the instructions:

  1. Remove the caliper. Unscrew the two bolts securing the bracket with a wrench T45 (or T50, depending on the year of manufacture). Carefully hang the caliper on a wire to the spring - Do not allow sagging on the hose!

  2. Sink the piston. Use a clamp with an adapter, rotating the piston clockwise (at Octavia A7 it has a thread). If the piston does not recess, check the cap of the brake fluid reservoir (it needs to be opened!).

  3. Install new pads. Clean the guides of old grease, apply a new layer of copper paste to the back of the pads and the points of contact with the caliper. Make sure spring clips (if any) installed correctly.

  4. Assemble the mechanism. Tighten the bracket bolts to torque 30 Nm. After assembly, press the brake pedal several times until the pistons are in their working position.

On cars without EPB after replacing the pads no adaptation required, but it is recommended to check the operation of the brakes while driving: accelerate to 40 km/h and brake sharply. If the car pulls to the side, the caliper may be unevenly tightened or the guides may be dirty.

๐Ÿ’ก

If the brake pedal becomes soft after replacing the pads, bleed the system. On Octavia A7 To do this, 2-3 presses are enough while holding the pedal in the lower position for 5 seconds.

Replacing pads on Octavia A7 with EPB: nuances

Machines with electromechanical parking brake require a special approach. The main difficulty is the need to recess the piston using diagnostic equipment. Without scanner (VCDS, OBDeleven, Carista) this is impossible to do!

Work algorithm:

  1. Activate EPB maintenance mode. Connect scanner, select block 53 โ€” Parking Brake and activate the function Service Mode. This unlocks the pistons for manual retraction.

  2. Remove the caliper. The bracket mounting bolts are unscrewed in the same way as on non-EPB versions, but be careful - do not press the brake pedal with the caliper removed, otherwise the piston will come out of the cylinder!

  3. Sink the piston. Use a puller with a rotary motion (counterclockwise). On Octavia A7 EPB pistons have threaded design, so a regular clamp will not work.

  4. Install the pads and adapt the system. After assembly, connect the scanner and run the commands:

    Basic Settings โ†’ 01
    

    Service โ†’ Replace brake pads

    This will reset the wear counter and calibrate the sensors.

Attention! If after replacement the indicator on the dashboard lights up BRAKE or EPB FAULT, check:

  • Correct connection of the wear sensor (if it is included in the pad set).
  • The quality of the contacts on the EPB connector (often oxidizes on machines older than 2017).
  • Brake fluid level (it rises when the pistons are retracted).
What to do if there is no scanner?

Without diagnostic equipment, replace the pads with Octavia A7 with EPB is extremely risky. As a last resort, you can try to โ€œdeceiveโ€ the system:

1. Turn on the ignition without starting the engine.

2. Press and hold the brake pedal.

3. Press the EPB button 5 times in a row - sometimes this will reset the error.

However, there is no guarantee, and at the first braking the handbrake may work spontaneously!

Common mistakes and how to avoid them

Even experienced car owners make mistakes when replacing rear pads with ล koda Octavia A7. Here are the most common ones and ways to prevent them:

โš ๏ธ Attention! Never use WD-40 or other penetrating lubricants to clean the caliper. They destroy the rubber piston seals and cause brake fluid to leak. Suitable for cleaning only special brake cleaner (for example, LIQUI MOLY Bremsen-Reiniger).
  • ๐Ÿ”ง Overtightened caliper bolts. Tightening torque - 30 Nm. Exceeding will lead to deformation of the bracket and uneven wear of the pads.
  • ๐Ÿ”ฅ Ignoring lubrication of guides. Without it, the pads will โ€œwedgeโ€, which will cause overheating of the disc and vibration.
  • ๐Ÿš— Failure to follow the assembly order. For example, installing spring clips after installation of pads (they need to be installed up to).
  • โšก They forget to bleed the brakes. After recessing the pistons, air remains in the system - this reduces braking efficiency.

Another typical problem is new pads squeak. On Octavia A7 it often occurs due to:

  • Absences anti-squeak plates (comes complete with original pads TRW).
  • Poor quality lubrication on the back side of the pads (you need to use special paste, and not universal copper).
  • Dirt getting between the pad and the deepport (always clean the seats!).

1. Correct installation of the pads (they should โ€œsitโ€ tightly, without play).

2. Condition of the brake discs (in case of critical wear or deformation, new pads will not help).

3. Tightness of the system (liquid leakage will lead to a drop in pressure).-->

When to change brake discs

On ล koda Octavia A7 rear brake discs serve 80-120 thousand km, but their condition must be checked every time the pads are replaced. Critical signs of wear:

  • Disc thickness less 8.4 mm (value for most versions is 10 mm).
  • Deep grooves or โ€œwavesโ€ on the working surface (checked visually or by touch).
  • Steering wheel wobble or vibration when braking (indicates disc deformation).

If the discs require replacement, choose the original (TRW or ATE) or high-quality analogues:

Brand Article Price per piece (RUB) Features
TRW DF4880 4 500โ€“5 000 Original, ventilated, suitable for versions with EPB
ATE 24.0122-0178.1 3 800โ€“4 200 Coverage Coat Z against corrosion
Brembo 09.9366.11 5 200โ€“5 800 Increased heat resistance, for aggressive riding

When replacing disks necessarily change the pads, even if they are almost new. Old pads will not rub against the new disc surface, which will lead to accelerated wear. Also don't forget about cleaning the hub from rust - this will prevent the wheel from beating.

Resetting the service interval and adapting the EPB

After replacing the pads with Octavia A7 You need to reset the wear counter in the on-board computer. To do this:

  1. Turn on the ignition (do not start the engine).

  2. Press and hold the button 0.0/SET on the steering column switch.

  3. Scroll to Inspection (or Service).

  4. Select Reset and confirm the action.

For cars with EPB additional adaptation via a diagnostic scanner is required. Procedure:

  1. Connect the scanner (VCDS, OBDeleven).

  2. Select block 53 โ€” Parking Brake.

  3. Go to Basic Settings โ†’ 01.

  4. Run the command Replace brake pads.

  5. Wait for the procedure to complete (takes 1-2 minutes).

Attention! If after a reset the message remains on the dashboard BRAKE PAD WEAR, check:

  • Connecting the wear sensor (it may be damaged or incorrectly installed).
  • Quality of contacts in the connector (oxidation or wire breakage).
  • EPB firmware version (on machines before 2016 there are bugs that require a software update).
๐Ÿ’ก

On Octavia A7 with EPB after replacing pads necessarily perform adaptation via scanner. Without this, the handbrake will not work correctly, and in some cases it may block the wheels while driving!

FAQ: answers to frequently asked questions

Is it possible to replace the rear pads on an Octavia A7 without a scanner if there is an EPB?

Technically yes, but with serious caveats. Without a scanner you will not be able to:

  • Activate EPB service mode to retract the pistons.
  • Reset the pad wear counter in the control unit.
  • Adapt new pads, which will lead to errors in the operation of the handbrake.

As a last resort, you can try to โ€œdeceiveโ€ the system (see spoiler above), but this is a temporary solution. For a complete replacement, a scanner is required.

How often do you need to change the rear pads on an Octavia A7?

Service life depends on several factors:

  • Riding style: for aggressive driving - every 30-40 thousand km, when calm - up to 60 thousand km.
  • Pad quality: original (TRW) lasts longer than analogues by 20-30%.
  • Disk status: Warped or worn discs will accelerate pad wear.
  • Climate: In regions with frequent rain and salt on the roads, the pads wear out faster.

We recommend checking the thickness of the pads every 15 thousand km or when changing tires seasonally.

What happens if you don't change the rear pads on time?

The consequences depend on the degree of wear:

  • Wear down to metal: A grinding noise appears, the brake discs become damaged (they will have to be replaced or sharpened).
  • Brake fluid leak: If the caliper piston extends too far, the seals are damaged.
  • Reduced braking efficiency: The rear axle brakes worse than the front axle, the car โ€œsteersโ€ to the side.
  • EPB FAULT lights up: on cars with an electronic handbrake, the mechanism is blocked due to critical wear.

Critical pad wear (less than 2 mm) can lead to caliper jamming and complete loss of brakes on one of the wheels.

Do I need to bleed the brakes after replacing the rear pads?

Bleeding is not always required, but is recommended in the following cases:

  • If, when retracting the pistons, brake fluid flowed out of the reservoir (air entered the system).
  • If the brake pedal has become โ€œsoftโ€ or falls down.
  • If you notice fluid leaks on the caliper or hoses.

To bleed the rear brakes Octavia A7 need an assistant or disposable valve for self-priming. Procedure:

  1. Remove the brake fluid reservoir cap.
  2. Place the hose onto the rear caliper bleeder fitting.
  3. Have an assistant press the brake pedal 3-4 times and hold it down.
  4. Unscrew the fitting, let out the air, screw it back on.
  5. Repeat the procedure until clear liquid without bubbles comes out of the hose.
What brake fluid should I fill in the Octavia A7?

Manufacturer recommends DOT 4 with permission VW 501 14. Suitable options:

  • Febi Bilstein (23500) is the original supplier for VW Group.
  • ATE SL.6 - high boiling point (260ยฐC).
  • LIQUI MOLY DOT 4 โ€” optimal price/quality ratio.

System volume - about 1 l, but enough for topping up 250-300 ml. The liquid is hygroscopic, therefore do not use opened packaging older than 1 year.