ŠKODA Octavia A7: a complete guide to selection and installation

Owners ŠKODA Octavia A7 (2013-2020) is often faced with the question: which discs to choose to replace the regular? From the correct selection depends not only the appearance of the car, but also safety, handling, and suspension life. In this article, we will analyze all the technical parameters from PCD bolt patterns before the allowable departure ET- and give recommendations on brands, materials and style of discs.

We will pay special attention to the nuances, which are rarely discussed: why ET 45 discs can rub against the caliper on versions with 312 mm brakesWhat consequences are expected when installing discs with the wrong central hole, and how to avoid vibrations at speeds above 120 km / h. Information is relevant for all modifications Octavia A7, including Liftback, Combi and RS.

Technical parameters of the ŠKODA Octavia A7

Before you buy discs, learn the key characteristics that should match the factory specifications. Basic parameters:

• 🔧 Bolt Pattern (PCD): 5×112 — 5 holes located on a circle with a diameter of 112 mm.
• 📏 Hub Diameter (DIA): 57.1 mm The central opening of the disk should be at least this value (high DIA disks are allowed, but center rings are required).
• ↔️ offset (ET): from ET38 up to ET45 Depending on the width of the disk and the version of the car.
• 🛞 Disc width (J): from 6.5J up to 8.5J (for sporting versions) RS and tuning options).
• 📊 Disc diameter (R): disks were installed from the factory R15–R18but it's possible to install R19 and R20 with clearance and braking mechanisms.

Important: the parameters may differ slightly for different years of release and configurations. For example, Octavia A7 FL (restyled 2017) with engines 1.8 TSI or 2.0 TDI They were often equipped with brakes of increased diameter, which imposes restrictions on the minimum diameter of the disc.

Standard sizes of discs by configuration

Factory disk sizes vary depending on the modification Octavia A7. Below is a table with original parameters for the most common versions:

Modification	Diameter (R)	Width(J)	offset (ET)	Recommended tires
Ambition 1.6 MPI	R15	6.5J	ET45	195/65 R15
Elegance 1.4 TSI	R16	7J	ET42	205/55 R16
Style 1.8 TSI	R17	7.5J	ET40	225/45 R17
RS 2.0 TSI	R18	8J	ET38	225/40 R18
Scout 1.6 TDI	R17	7J	ET45	225/50 R17

⚠️ Attention: On versions with all-wheel drive (4×4) installation of discs with offset is allowed ET35–ET45but deviation from factory values by more than ± 5 mm can lead to premature wear of hub bearings and suspension elements.

Cast vs Forged vs stamped: what to choose?

Each type of disk has its pros and cons. Let's look at them in detail:

• ⚡ Alloy wheels:
  • ✅ Light (20-30% lighter than stamped), which improves dynamics and reduces the load on the suspension.
  • ✅ A wide selection of designs and sizes.
  • ❌ Fragile with strong impacts (crack when hitting pits at high speed).
  • ❌ High price (from 8000 rubles). behind the disk.
• 🔨 Forged wheels:
  • ✅ The most durable and lightweight (30-50% lighter cast).
  • ✅ Deformation resistant.
  • ❌ Very high cost (from 15 000 rubles). behind the disk.
  • ❌ Limited selection of designs.
• 🛠️ Stamped discs:
  • ✅ Cheap (from 2 000 rubles). and the sleeve of the sleeve and the sleeve of the sleeve.
  • ✅ Resistant to mechanical damage.
  • ❌ They are heavy (deteriorating and slowing down).
  • ❌ Limited appearance (most often used with caps).

For everyday use, the best choice will be alloy wheels mid-price category (for example, AEZ, Alutec or Replica). For sports driving or frequent off-road driving, it is better to consider forged (for example, BBS or OZ Racing). Stamped discs are only suitable as a temporary option or for the winter season.

How to avoid mistakes when choosing disks?

Even if you know all the parameters, it is easy to make a mistake. Here are the most common problems and how to avoid them:

⚠️ Attention: Discs with offset ET40 and less can touch the brake caliper on versions with brakes 312 mm (installed on Octavia RS and some 1.8 TSI). Before buying, check the size of the brake discs!

• 🔍 Central hole inspection (DIA):
  • If the disk DIA is larger 57.1 mm, use centering rings (for example, from Hubcentric).
  • Discs with DIA less 57.1 mm They are not fit – they will not sit on the hub.
• ⚖️ Balance of width and departure:
  • When the disk width is increased (for example, with 7J up to 8J) the departure shall be reduced by 5 to 10 mm to dry the load on the bearings.
  • Example: for disk 8J optimal ET. 35–38.
• 🚗 Test rig:
  • Before paying in full, ask the store to try on the drive for the car (many services provide such a service).
  • Check whether the disc touches the caliper or shock absorber at full turn of the steering wheel.

Clarify the slap-up (PCD 5×112)

Check the diameter of the hub (DIA 57.1 mm)

Check the offset (ET) with recommendations for your modification

Consider the width of the disk and compatibility with rubber

Consult with the Master about the brake mechanisms--

Top 5 wheel brands for Octavia A7

There are hundreds of brands on the market, but not all guarantee the quality and accuracy of the parameters. We have selected 5 proven manufacturers:

1. BBS - legendary German brand specializing in forged and cast discs of premium class. Suitable for Octavia RS and the tuned versions. Price: from 12,000 rubles. for the disc.
2. AEZ German quality at an affordable price. Popular models: AEZ Argus and AEZ Le Mans. Price: from 7000 rubles.
3. Alutec Russian brand with production in Germany. Good price-quality ratio. Price: from 6,500 rubles.
4. Replica Budget replicas of premium brand discs. Suitable for those who want style BBS or OZ No overpayment. Price: from 5,000 rubles.
5. K&K Polish manufacturer with a wide range of products VAG. Price: from 5 500 rubles.

When choosing a brand, pay attention to guarantee (minimum 1 year) and availability quality certificates (for example, TÜV or ISO 9001). Avoid nameless drives from China – they often have inaccurate PCD or ET settings, resulting in vibrations.

Can I put a larger diameter disc?

Installation of larger diameter discs (for example, R19 instead of R17) possible, but with reservations:

• ✅ Pros:
  • Improved appearance (the car looks sportier).
  • The best course stability at high speeds.
• ❌ Cons:
  • Reduced clearance (risk of damage to discs on irregularities).
  • Increased load on suspension and hub bearings.
  • Higher price of rubber and disks.

Upgrade recommendations:

• 🔄 When you increase the diameter of the disk by 1 inch, reduce the profile of the rubber by 10-15 mm to maintain the outer diameter of the wheel. Example: instead of 205/55 R16 take it 225/45 R17.
• 🛑 Maximum recommended diameter for Octavia A7 — R19. Discs R20 Only with low-profile rubber (available)30–35) and require checks for arches.
• ⚠️ On versions with spring suspension (not DCC) disks R18+ They can lead to hard driving and accelerated wear of shock absorbers.

What happens if you put R20 discs on the Octavia A7?

When installing disks R20 Without modifications, the following problems may occur:

1. Grabbing for the slats or calipers with a full steering wheel or on irregularities.

2. Increased load on the steering rack and hub bearings (reduced life by 20-30%).

3. Comfort deterioration due to low-profile rubber (hardness, noise, risk of disk damage on pits).

4. Problems with passing the inspection (if the diameter is not entered in the PTS).

For safe installation R20 required:

Installation of pads (if the ET is too large).

Replacement of springs/shock absorbers with sports (e.g. H&R or Eibach).

- Use of rubber with profile not higher 30 (for example, 235/30 R20).

How to install new discs correctly?

Installing disks is a responsible process. Here's the step-by-step instruction:

1. Preparation:
   • Lift the car on the lift or jack, removing the wheel.
   • Clean the hub from dirt and rust (use a wire brush).
2. Disc installation:
   • Put the disc on the hub, combining the holes. If a center ring is used, make sure it is firmly settled.
   • Turn the slacks on the back of the slack without slapping them. 120 Nm).
3. Puff and balance:
   • Lower the car and finally tighten the bolts with a dynamometer key.
   • Balance the wheel on the machine (even new drives can have an imbalance).

⚠️ Attention: After installing new disks, be sure to do wheel alignmentEspecially if the width or the drive has changed. Ignoring this rule will lead to uneven wear of rubber and deterioration of handling.

💡

Even if the discs are perfectly seated on the hub, vibrations at a speed of 100+ km / h can occur due to imbalance or poor-quality rubber. Always balance your wheels after installing new drives!

FAQ: Frequent questions about the Octavia A7 discs

Can I install discs from other VAG models (Golf, Passat, Audi)?

Yes, but with reservations. Many models Volkswagen Group have the same bolt pattern 5×112 and D.I.A. 57.1 mmBut the offset (ET) and width may differ. For example, discs from Audi A3 often come up, but from Passat B8 - only if ET matches. Always check the parameters!

Which wheels are better for winter: cast or stamped?

Preferable for winter stamped wheels for three reasons:

1. They are cheaper (the risk of damage in the pits is higher in winter).
2. They are easier to repair after the impact.
3. Less susceptible to corrosion when in contact with reagents.

If you choose cast, take models from protective coating (for example, AEZ Winter).

What should I do if vibration appears after installing new disks?

Causes of vibration and ways of elimination:

• 🔧 Imbalance: Make the machine balance.
• 🛠️ Incorrect bolt tightening: Check the puff moment (120 Nm) and sequence (cross-cross-cross).
• 🚗 Disk deformation: If the disc is bent, it must be rolled (stamped) or replaced (cast / forged).
• ⚠️ DIA mismatch: Make sure that the center ring is used.

If the vibration remains, check it out. wheel bearing and disk geometry.

What is the maximum offset can be put on the Octavia A7 with all-wheel drive?

For Octavia A7 4×4 recommended flight - ET35–ET45. Exceeding this range by more than ± 5 mm results in:

• Accelerated wear CV joints and bearings.
• Deterioration of controllability (the car becomes "shaft").

The best option is to adhere to factory values or consult with a suspension wizard.

Do I need to register the change in the size of the disks in the traffic police?

If the new diameter of the discs is indicated in PTS (for example, R17 instead of R16), registration is not required. If the diameter not specified (for example, you bet on the R19 on the version where the maximum R18changes will be required through examination and re-registration.