Owners ŠKODA Octavia A5 (2004-2013) are often faced with the need to replace wheels – whether it is tuning, seasonal change of rubber or banal wear of standard elements. Before buying new discs, it is critical to know them. bolt pattern, or PCD Pitch Circle Diameter (Pitch Circle Diameter) is a parameter that determines the number and location of fastening holes. An error in the choice will lead to the inability to install the disk or, worse, to an emergency on the road.
In this article, we will analyze in detail all the parameters of the bolt pattern Octavia A5, including offset (ET), center hole diameter (DIA) and recommended disk sizes. You will also find compatibility tables with other models. VW GroupTips for selecting non-standard disks and answers to frequent questions. Information is relevant for all modifications: sedan, liftback (Combi) and all-wheel drive versions (4×4).
What is a bolt pattern and why is it important for the Octavia A5
The squabbling is a combination of two key parameters: number of anchorages and circumferenceon which they are located. For ŠKODA Octavia A5 This parameter is designated as 5×112, where:
- 🔢 5 The number of bolts (or nuts) on the hub;
- 📏 112 mm - the diameter of the circle along which the centers of the holes are located.
Ignoring the talk is fraught with serious consequences. For example, a disc with a parameter 5×100 (like many Japanese cars) it is physically impossible to attach it to the hub Octavia A5Even if the holes are visually matched. Moreover, the use transition rings or eccentric bolts for "fitting" non-standard disks disrupts the wheel balancing and increases the risk of disc detachment at high speed.
⚠️ Attention: On the market there are discs with "universal" bolt pattern 5×112/5×114.3where the holes are oval-shaped. Such discs are not suitable for Octavia A5 They do not provide reliable fixation and can lead to the rudder beating or damage to the hub.
In addition to the bolt pattern, when selecting wheels for Octavia A5 take into account:
- 🔧 offset (ET) — the distance from the mating plane of the disk to its center. For A5 varies from
ET35up toET50; - 🕳️ Center Hole Diameter (DIA) - must match the diameter of the hub (
57.1 mm); - 📊 Disc width (in inches) - affects the choice of rubber and clearance.
- Steel (stamped)
- Cast (light alloy)
- Forged
- I don't know what to choose
Official Options for Octavia A5 Blogging by Generation
ŠKODA Octavia A5 It was released from 2004 to 2013 and during this time has undergone several updates, but the parameters of the spreadsheet remained unchanged for all modifications, including restyled versions (restyled versions).FL2009-2013). Below is a table with official data from the manufacturer:
| Parameter | Meaning | Notes |
|---|---|---|
| Bolt Pattern (PCD) | 5×112 |
Compatible with most models VW Group (Golf, Passat, Audi A3) |
| Center Hole Diameter (DIA) | 57.1 mm |
Discs with DIA are allowed to be used before 60 mm transition-ringed |
| offset (ET) | ET35–ET50 |
For versions with all-wheel drive (4×4) recommended ET40–ET45 |
| Mounting bolt thread | M14×1.5 |
Bolt length - 27–30 mm (depends on the type of disk) |
| Disk width (standard) | 6.0J–7.5J |
For sports versions (RS) is allowed 8.0J |
Important: For models Octavia A5 Scout (excessively) and versions with engines 2.0 TSI or 1.8 TSI It is recommended to use disks with departure at least ET42To avoid getting caught by the suspension elements.
If you plan to install discs with abnormal parameters (for example, increased width or reduced offset), be sure to check their compatibility with the help of the device. 3D calculator of squabbling or consult with a master of tire fittings. An improper flight can lead to:
- 🔧 Accelerated wear of the bearings;
- 🚗 Deterioration in controllability (especially at high speeds);
- 💥 Disk contact with brake system elements (e.g. calipers).
Compatible with other VW Group models
Thanks to the use of the platform VW Group PQ35, ŠKODA Octavia A5 It has identical bolt pattern with a number of models of the concern. This opens up ample opportunities to pick up discs from other brands, often at more attractive prices. Below is a list of compatible cars:
- 🚗 Volkswagen Golf V (2003-2008) and Golf VI (2008–2012);
- 🚙 Volkswagen Passat B6 (2005-2010) and Passat CC;
- 🏎️ Audi A3 8P (2003–2012) and Audi TT 8J;
- 🚐 SEAT Leon 1P (2005–2012) and SEAT Toledo III;
- 🚗 ŠKODA Superb II (2008–2015).
However, there are nuances:
⚠️ Attention: Discs from Audi often have an increased diameter of the central opening (66.6 mmwhich would require the use of centering rings. Some sports versions (for example, Golf GTI) may have non-standard departures (ET33which is not suitable for Octavia A5 without modifications.
When buying used discs from compatible models, pay attention to:
- 🔍 Thread condition fastening holes (wear or tears of thread are unacceptable);
- 🛠️ Presence of cracks (especially on cast discs);
- 📉 Residual metal thickness after previous repairs (for example, after editing on the machine).
Identity of the slap (5×112) | Coincidence of DIA (57.1 mm) or presence of transition rings | Offset within ET35–ET50| No visible defects (cracks, dents) | Balancing check (if the disc used)->
How to measure the Octavia A5 self-promotion
If you doubt the parameters of the disks or buy them without documentation, the spread can be measured yourself. This will require:
- 📏 Vernier caliper or a ruler;
- 🔨 Corner (For accurate measurement of distances).
Measurement algorithm:
- Remove the wheel and clean the hub from dirt.
- Measure the distance between the centers of two adjacent holes (denote it as
X). - For
5-boltUse the formula for the following:PCD = X / sin(36°)For example, if
X = 64.7 mm, thenPCD = 64.7 / 0.5878 ≈ 110 mm(error due to rounding). - Compare the resulting value with the reference
112 mm.
To check departure (ET):
- Place the disk on a flat surface (for example, a sheet of plywood).
- Measure the distance from the surface to the landing plane of the disk (
A). - Turn the disk and measure the distance to the opposite side (see below).
B). - Departure is calculated using the formula:
ET = (A + B)/2 – Cwhere
Cthe width of the disc in inches, translated in mm (for example,6.5J = 165.1 mm).
If you do not have a bar, use a regular ruler and thread: apply the thread to the centers of the two holes, measure its length and multiply by 1.1756 (for 5-bolt bolt pattern) - this will give an approximate PCD.
Selection of non-standard disks: what you need to know
Many owners Octavia A5 They want to install larger diameter discs or with aggressive design. However, such changes require taking into account several factors:
1. Maximum permissible dimensions:
- 📏 Diameter: up to
18"(for versions with engines1.4 TSIand1.6 MPIbefore19"for RS and 4×4 (It will require low-profile rubber). - 🔄 Width: up to
8.5J(Extensively, only with the widening of the wheel arches).
2. Impact on driving performance:
- ⚖️ Increase in diameter of the disk by
1"equivalent to reducing the tyre profile by10–15%This reduces comfort and increases the load on the suspension. - 🌡️ Discs with low thermal conductivity (for example, some cast models) can lead to overheating of the brake mechanisms.
3. Legal aspects:
In Russia and the EAEU countries, the change in wheel sizes must be consistent with the Technical regulations of the Customs Union (TR TS 018/2011). According to him:
- 📜 The size of the wheels must not exceed the limits specified in the OTTS (Approval of a vehicle type);
- 🚨 Any changes should be made to the STS (Registration certificate) after the examination.
What happens if you install wheels with the wrong offset?
The misalignment of the wheel with the hub will lead to uneven wear of the tires (especially the inner edge), an increase in the load on the bearings and suspension levers. At a speed of over 100 km / h, the rear axle can "wag", and with sharp braking - uncontrolled skidding. In critical cases, the disc can touch the elements of the body or braking system, which is fraught with an accident.
Frequent errors in the selection of discs for the Octavia A5
Even experienced car owners sometimes make mistakes that lead to additional costs or safety issues. Here are the most common of them:
- Ignoring DIA: Buying discs with a central hole
66.6 mm(like Audi) without transition rings. This leads to off-center landing disc, steering beat and accelerated wear of the hub. - Incorrect departure: Installing disks with
ET<35(for example,ET20) without checking the gaps. Nana Octavia A5 This often leads to contact of the disc with a shock absorber or spring. - Savings on bolts: Using standard bolts instead elongated (for thick discs) or conical (for cast models). This is fraught with self-twisting bolts during movement.
- Thread mismatch: Threaded bolts
M12×1.5(like the old ones) VW) are not suitable for Octavia A5 - I need a carving.M14×1.5.
To avoid these errors, always check the parameters of the disks with the data in the instruction manual or use online selection services such as:
- 🌍 Wheel-Size.com;
- 🌍 Diski.ru.
When buying discs, always require a certificate of conformity from the seller (especially for cast and forged models). The lack of documentation may indicate a counterfeit or marriage.
Recommendations for the care of the Octavia A5 discs
Proper care extends the life of the discs and prevents corrosion, which is especially dangerous for the body. stamped models. Basic rules:
1. Cleanup:
- 🧽 Wash your wheels by special means (for example, Sonax Full Effect or Liqui Moly Felgen-Reiniger), avoiding aggressive alkalis;
- 🚿 Do not use metal brushes – they scratch the surface of the cast discs;
- 🔥 For removing brake dust from forged discs suitable steam-wash.
2. Corrosion protection:
- 🛡️ Apply wax or ceramic coating on cast discs 2 times a year;
- 🔧 Use for stamping. anti-gravel treatment internal surface;
- 🌧️ In the winter, treat the discs. corrosion-proof (for example, WD-40 Specialist).
3. Balancing and storage:
- ⚖️ Balance the wheels. every 10–15 thousand km Or after a severe blow (for example, falling into a hole);
- 📦 Keep the discs in. vertical position (Not to be put in a dry place)
- 🔄 When seasonally replacing the tires, check bolt tightening torque (for Octavia A5 —
120 Nm).
⚠️ Attention: If there are microcracks (especially at the base of the spokes), it must be replaced immediately. Even small damage can cause the disk to break down at high speed.
FAQ: Answers to frequently asked questions
Can I put the Volkswagen Passat B6 on the Octavia A5?
Yes, Volkswagen Passat B6 has an identical bolt pattern 5×112 and D.I.A. 57.1 mm. However, check the departure (ET- Passat it may differ (for example, ET45 instead of ET38 at Octavia). Also consider the width of the disk: Octavia A5 maximum recommended width - 8.0J (no modifications).
What bolts are needed for alloy wheels on Octavia A5?
Alloy wheels require bolts with conical fit (cone 60°) and threading M14×1.5. The length of the bolt depends on the thickness of the disk:
- For regular disks,
27 mm; - For thick cast or forged,
30–35 mm(with the transition rings included).
Tightening torque - 120 Nm. The use of standard bolts from stamping can lead to insufficient fixation.
What happens if you install wheels with ET20 offset?
Discs with offset ET20 The wheel is pushed outwards, which will lead to:
- Increased load on the hub bearings and suspension levers;
- Possible contact of the tire with the arch or mud flap at a full turn of the steering wheel;
- Need for use wheel-archer (This is why in most countries legalization is required.)
For Octavia A5 minimum permissible departure - ET35 (For front-wheel drive versions).
What is the maximum diameter of discs that can be installed without modifications?
Without modifications of suspension and wheel arches, the maximum dimensions are:
- For versions with engines
1.4/1.6/1.8 TSI—18"(width up to8.0J); - For Octavia RS and 4×4 —
19"(width up to8.5JAnd the rubber is not wider.235/35 R19).
Installation 20" disks will be required:
- Replacement of shock absorbers with shortened ones;
- Rolling wheel arches;
- Use of low profile rubber (e.g.,
225/30 R20), which will negatively affect comfort.
Can I use the Audi A4 B7 discs?
Audi A4 B7 has a bolt pattern 5×112But the diameter of the central hole is 66.6 mm (against 57.1 mm at Octavia A5). It will be necessary for installation centering rings thick 4.75 mm. Also note the departure: A4 He's a frequent. ET30–ET35which may be too small for Octavia.