Rear brake discs for Škoda Octavia A5: how to choose and replace correctly

Rear brake discs on Škoda Octavia A5 (2004–2013) is a critical element of the braking system, the condition of which determines not only braking efficiency, but also safety on the road. Unlike the front discs, the rear ones are often used more sparingly, but this does not mean that they can be ignored. Worn, corroded or warped rear discs can lead to vibration when braking, longer braking distances and even brake failure in an emergency.

In this article we will look at everything the owner needs to know. Octavia A5 about rear brake discs: from original catalog numbers and analogues to step-by-step instructions for replacement, taking into account typical mistakes. You will also find a comparison table of popular brands, diagnostic tips and answers to frequently asked questions. The material was prepared taking into account the experience of car services and reviews of owners, so there is no “water” here - only verified facts and practical recommendations.

Original and similar brake discs: catalog numbers and sizes

For Škoda Octavia A5 (including restyled versions) original rear brake discs are supplied under article numbers 1K0 615 601 (diameter 253 mm, thickness 10 mm) and 1K0 615 601 A (for models with larger brakes, for example, RS version). It is important to consider that discs may differ depending on the engine and configuration:

• 🔧 1.4 TSI, 1.6 MPI, 1.8 TSI, 2.0 TDI (up to 140 hp) - standard wheels 1K0 615 601 (253×10 mm).
• 🚗 1.8 TSI (160 hp), 2.0 TSI, 2.0 TDI (170+ hp) - reinforced wheels 1K0 615 601 A (280×12 mm).
• ⚠️ Octavia Scout and four-wheel drive models (4x4) — require disks with other parameters (article number 1K5 615 601, 272×12 mm).

When choosing analogues, pay attention not only to the diameter and thickness, but also to material of manufacture (cast iron, carbon fiber for sports versions) and perforation type (ventilated or solid). Popular substitute brands - ATE, Brembo, TRW, Zimmermann and Bosch. Below is a compatibility table showing average prices for 2026.

Brand	Article	Disk type	Compatibility	Price per set (RUB)
ATE	24.0120-0117.2	Ventilated, perforated	1.4–2.0 TDI (140 hp)	5 200–6 500
Brembo	09.9705.11	Solid, with notches	1.6 MPI, 1.8 TSI (up to 160 hp)	7 800–9 000
TRW	DF4530	Ventilated, no perforation	All versions except RS	4 500–5 800
Zimmermann	240.3402.20	Sports, perforated	RS, 2.0 TSI, 2.0 TDI (170+ hp)	12 000–14 500

Important: Wheels for Octavia A5 with 1.9 TDI engines (up to 2008) may have unique fastenings - check compatibility by VIN code through services like ETKA or Elcats.

Signs of wear on rear brake discs: when is it time to change them?

Rear discs on Octavia A5 They wear out slower than the front ones (on average by 30–50%), but their condition needs to be checked every 20–30 thousand km. The main symptoms indicating the need for replacement:

• 🔊 Creaking or squealing when braking - often caused by contact of the pads with the worn edge of the disc.
• 🌀 Vibration in the steering wheel or brake pedal — a sign of disc deformation (beating more than 0.05 mm).
• 📏 Disc thickness less than 8.4 mm (for standard wheels) or 10.4 mm (for reinforced ones).
• 🔥 Brake overheating - may indicate a stuck caliper or worn discs with low heat transfer.

For an accurate diagnosis, use micrometer or dial indicator (to check runout). If deep grooves (more than 0.5 mm), cracks or traces of corrosion are visible on the surface of the disc, replacement cannot be delayed. Octavia A5 with worn rear discs it can “pull” to the side when braking, especially on wet roads.

⚠️ Attention: If the brake pedal becomes soft after replacing the pads, this may be a sign disc thinning — the pads cannot fully press against the deformed surface.

How to choose brake discs: checklist for purchase

When selecting rear discs for Octavia A5 Consider not only the price, but also the following parameters:

The optimal choice depends on your riding style:

• 🚘 Urban operation - budget wheels are suitable TRW or Bosch without perforation.
• 🏁 Aggressive driving - perforated or grooved discs Brembo or Zimmermann.
• ❄️ Off-road driving (Scout) - reinforced discs with corrosion protection (for example, ATE PowerDisc).

Avoid fakes - original wheels VAG have laser engraving with the article number, and high-quality analogues (for example, Brembo) are supplied in branded packaging with a hologram. When purchasing online, check the reputation of the seller and the availability of a warranty (minimum 12 months).

How to spot fake ATE disks?

Genuine ATE wheels are clearly marked on the inside, uniform in color (no spots) and are packaged in cardboard boxes with the brand logo. Counterfeits are often sold in plastic bags without documentation.

Step-by-step instructions for replacing rear brake discs

Replacing rear discs with Octavia A5 more difficult than the front ones due to the need to work with the handbrake and ABS sensor. Tools needed:

• 🔧 Set of sockets and socket wrenches (13, 15, 17 mm).
• 🔨 Brake disc puller (or hammer with a wooden spacer).
• 🔩 Torque wrench (hub nut tightening torque - 120 Nm).
• 🧲 Magnet for bolts (so as not to lose the caliper fasteners).

Procedure:

1. Jack up the car and remove the rear wheel. Be sure to secure the machine with supports!
2. Unscrew the two caliper mounting bolts (13 mm wrench) and hang the caliper on a wire so as not to damage the hose.
3. Remove the brake disc. If it gets stuck, use a puller or gently tap the edge with a hammer.
4. Clean the hub from rust and apply copper grease to the seat of the new disk.
5. Install the new disc, tighten the hub nut (torque 120 Nm) and reassemble everything in reverse order.
6. After replacement bleed the brakes and adjust the handbrake (if necessary).

⚠️ Attention: On Octavia A5 with ABS, after replacing the discs, an error may light up 01130 (wheel speed sensor malfunction). To reset it, use a diagnostic scanner (VCDS or OBDeleven) or disconnect the battery for 10 minutes.

Tuning and modernization of the brake system

Owners Octavia A5, especially in versions RS or Scout, rear brakes are often upgraded to improve performance. Popular options:

• 🔥 Perforated discs — they remove heat better, but wear out faster (resource ~30 thousand km).
• 🛡️ Serrated discs - improve traction with pads in the rain, but can accelerate pad wear.
• 🏎️ Disc + pad kits from Brembo — increase braking power by 15–20%, but require modification of the calipers.

When tuning, consider:

• Increasing the diameter of the discs (for example, from 253 to 280 mm) will require replacing calipers and brake hoses.
• Installing ceramic discs is only advisable for sports driving - they are 3-4 times more expensive, but can withstand temperatures up to 1000°C.
• After modernization it is necessary bleed the brake system and check the brake force balance (at a service station).

Octavia A5 RS with factory brakes Brembo is already equipped with reinforced discs (280 mm), but even these can be improved by installing smooth pads (for example, Ferodo DS2500) for smoother braking.

Common replacement mistakes and how to avoid them

Even experienced car owners make mistakes when working with rear brakes Octavia A5. Here are the most common:

Error	Consequences	How to avoid
Failure to maintain the tightening torque of the hub nut	Vibration at speeds above 80 km/h	Use a torque wrench (120 Nm)
Ignoring disk space cleaning	Disc runout due to rust	Clean the hub with a wire brush
Forgot to adjust the handbrake	Pads jamming, overheating	Check lever travel (2–4 clicks)

Another typical problem is incompatibility of pads and discs. For example, if you install drilled discs but leave standard pads, braking efficiency will drop by 20-30%. Always use kits from the same manufacturer.

⚠️ Attention: On Octavia A5 with the system ESP may be required after replacing disks sensor calibration (done through the diagnostic connector). Ignoring this step will lead to false alarms of the stabilization system.

FAQ: Answers to frequently asked questions

Is it possible to sharpen the rear discs instead of replacing them?

Grooving is possible if the thickness of the disc after processing does not become less than the minimum permissible (8.4 mm for standard discs). However, on Octavia A5 Grooving is often impractical due to the low cost of new discs (from 3,000 rubles per set). In addition, grooving does not eliminate internal microcracks, which can lead to disc destruction.

How often should rear brake discs be replaced?

Rear disc service life Octavia A5 — 80,000–120,000 km with quiet driving. In city conditions or frequent trips on mountain roads, the resource is reduced to 50,000–70,000 km. It is recommended to check the condition of the discs every time you replace the pads (every 20–30 thousand km).

What to do if a squeaking noise appears after replacing the disks?

The creaking can be caused by:

• Incorrect running-in of the pads (you need to drive 200–300 km in a gentle mode).
• Lack of anti-squeak plate on the pads.
• Low-quality disc or pad material (especially from budget brands).

If the squeak does not disappear after 500 km, check the compatibility of components or install anti-squeak lubricants (for example, Liqui Moly Bremsen-Anti-Quietsch-Paste).

Will rims from other VW Group models fit?

Yes, Octavia A5 Compatible with rear drives from:

• VW Golf V (2003–2009) - article 1K0 615 601.
• Audi A3 8P (2003–2012) - same dimensions, but check by VIN.
• Seat Leon 1P (2005–2012) - full compatibility.

However, discs from Passat B6 or Tiguan will not fit due to different fit dimensions.

Do I need to change the pads along with the discs?

Yes, The pads are always replaced along with the discs. New discs have a perfectly flat surface, but old pads have already become accustomed to the old geometry, which will lead to uneven wear. Additionally, differences in the coefficient of friction can cause the brakes to overheat.