The wheel hub is a critically important suspension unit, the condition of which determines not only comfort, but also driving safety. Ε koda Octavia. Bearing wear or mechanical damage to the hub housing is manifested by a characteristic hum at speed, vibrations on the steering wheel or uneven tire wear. Unlike many European competitors, Octavia (especially models A5, A7 and FL) has a design feature: on most versions, the hub is assembled with a bearing, which simplifies replacement, but requires precise selection of spare parts.

This article is not just step-by-step instructions, but a practical guide taking into account the pitfalls that owners encounter when replacing the hub themselves. We'll look at how to distinguish bearing wear from CV joint problems, what tools are really needed (and what you can do without), and why even a new bearing can hum after 500 km, if you do not take into account one nuance during installation. Let us separately dwell on the choice between the original (1K0 598 625 for the front axle) and analogues from SKF, FAG or NTN - with a comparison of resources and prices.

Signs of a hub malfunction: how not to confuse it with other problems

The main symptom of a worn hub is monotonous hum, which increases with increasing speed. However, similar sounds can be produced by:

  • πŸ”§ CV joint - crunching sound when turning or starting from a stop (especially on Octavia A5 with a mileage of 150 thousand km).
  • πŸ›ž Worn tires β€” a humming noise at certain speeds (for example, 80–100 km/h), which disappears when changing tires.
  • πŸ”© Cardan outboard bearing β€” vibrations on the body during acceleration (relevant for all-wheel drive versions 4x4).

To accurately diagnose your hub, perform two tests:

  1. Hearing test: Accelerate to 60–80 km/h and slightly wiggle the steering wheel left and right. If the noise gets louder when turning left - the problem is right hub, and vice versa. This is due to load redistribution.
  2. Tactile test: Raise the car on a jack, grab the wheel at the 9 and 3 o'clock position and swing it perpendicular to the axle. Play of more than 0.5 mm is a direct sign of bearing wear.
πŸ“Š What is the symptom of your Octavia?
  • Rumble at speed
  • Steering wheel vibration
  • Wheel play
  • Other

On Octavia A7 With 1.8 TSI and 2.0 TSI engines, hub wear occurs 20–30% faster due to the increased weight of the power unit and torque. Owners of these versions are recommended to check the bearings every 80–100 thousand km.

Choosing a hub: original vs analogues, articles and brands

Original hubs from Ε koda (manufacturer - VW Group) have catalog numbers:

  • πŸ”’ Front axle: 1K0 598 625 (left) / 1K0 598 626 (right) for Octavia A5 and A7.
  • πŸ”’ Rear axle: 1K5 598 625 (only for all-wheel drive versions).

The cost of the original is from 8 to 12 thousand rubles per piece. Alternatives from trusted brands:

Brand Article (front) Price, rub. Resource, thousand km Features
SKF VKBA 3600 5 200–6 500 100–120 Best price/quality ratio, bearing with reinforced cage
FAG 713 6106 20 6 800–8 000 130–150 Original supplier for VW Group, minimum play
NTN 4T4-2506 4 500–5 800 80–100 Budget option, often counterfeited

⚠️ Attention: On Octavia A7 FL (facelift) hubs are installed with a modified seat geometry for the ABS sensor (5Q0 598 625). Check the article by VIN code, otherwise the new bearing will not fit into place!

πŸ’‘

When purchasing an analogue, check availability factory lubricant in the bearing - cheap Chinese copies often do not have enough of it, which leads to premature wear.

Tools and preparation: what you need for replacement

To work you will need:

  • πŸ”§ Special keys: head on 30 mm for the hub nut (preferably with an extension), Torx T30 for ABS sensor.
  • πŸ”© Pullers: two-legged puller for pressing out the hub, a device for pressing in a new bearing.
  • πŸ› οΈ Additionally: torque wrench (nut tightening torque - 120–140 NΒ·m), copper grease for splines.

Vehicle preparation:

  1. Place the car on a level surface, tighten the handbrake and place chocks under the rear wheels.
  2. Loosen the hub nut before jacking up β€” after removing the wheel it will be more difficult to do this.
  3. Disconnect the negative terminal of the battery (required!) to avoid ABS errors when removing the sensor.

Loosen the hub nut|Disconnect the battery|Remove the wheel and caliper|Fix the brake disc (2 bolts)|Disconnect the ABS sensor-->

⚠️ Attention: On Octavia with the system EDS (electronic differential lock) after replacing the hub, adaptations must be reset via the diagnostic scanner (VCDS or ODB11). Otherwise, the system may not work correctly.

Step-by-step instructions: removing and installing the hub

Step 1. Removing the old hub

  1. Remove the wheel, brake caliper (hang it on a wire, do not disconnect the hose!) and disc.
  2. Unscrew the hub nut (tightening torque during installation - 120 Nm for A5 and 140 Nm for A7).
  3. Remove the steering tip (unlock the nut, use a puller).
  4. Disconnect the ABS sensor and ball joint (on Octavia with MLB the ball platform is secured with two bolts M12).
  5. Press out the hub using a puller. If the bearing is stuck, use penetrating lubricant (for example, WD-40 Specialist) and heat the body with a hair dryer (not higher than 100Β°C!).

Step 2: Install the new hub

  1. Clean the seat from dirt and corrosion with a wire brush.
  2. Apply a thin layer of copper grease to the axle shaft splines.
  3. Press in the new hub evenly, without distortions. Use a mandrel that rests only on bearing outer ring!
  4. Tighten the hub nut with a torque wrench, then loosen it.
  5. Connect the ABS sensor and check the gap between it and the ring gear (should be 0.5–1 mm).
What to do if the hub does not sit all the way?

If the hub rests when pressed in, do not apply excessive force! Reasons:

1) Dirt on the seat - clean again.

2) Axle deformation β€” check the runout with an indicator (tolerance: 0.05 mm).

3) Rejection of the new hub - compare the geometry with the old part.

Common mistakes and how to avoid them

Even experienced craftsmen make mistakes that reduce the life of the new hub:

  • ❌ Nut tightening - leads to overheating of the bearing. Use a torque wrench!
  • ❌ Grease on the brake disc β€” after work, clean the disk with alcohol.
  • ❌ Ignoring ABS Sensor β€” if the gap between the sensor and the rim exceeds 1.5 mm, the system will generate an error 01279 (β€œIntermittent signal”).
  • ❌ Pressing with hammer blows - this deforms the bearing cage. Only a press or a special puller!

⚠️ Attention: On Octavia RS with the 2.0 TSI engine (230 hp), the hubs experience increased loads due to the sporty suspension setup. After replacement, be sure to check wheel alignment - even a slight shift will affect handling.

πŸ’‘

The main mistake is saving on the puller. An attempt to knock off the hub with a hammer in 90% of cases leads to damage to the seat on the axle shaft, which will require its replacement (price - from 15 thousand rubles).

Cost of work in the service vs independent replacement

Prices for hub replacement in services in Moscow and regions (as of August 2026):

Service type Cost (1 hub), rub. Opening hours Warranty
Official dealer Ε koda 8 000–12 000 2–3 hours 12 months
Independent service 3 500–6 000 1.5–2 hours 6 months
On your own 0 (spare parts only) 3–5 hours β€”

Independent replacement is justified if:

  • πŸ’° You already have tools (pullers, torque wrench).
  • πŸ”§ Have experience working with suspension (for example, changing shock absorbers or CV joints).
  • ⏱️ Are you ready to spend time on preparation (cleaning seats, buying lubricant).

If at least one point is not fulfilled, it is better to contact the service. Saving 3-5 thousand rubles is not worth the risk of damaging the axle shaft or uneven tire wear due to incorrect camber.

FAQ: Frequently asked questions about replacing the hub on an Octavia

Is it possible to drive with a humming hub?

Short-term (up to 1-2 weeks) - yes, but the risk increases with every thousand kilometers. The bearing can jam at speed, which will lead to loss of control. On Octavia with DSG this is especially dangerous due to the high loads on the transmission.

Do I need to replace the hub assembly or just the bearing?

On Octavia A5/A7 the bearing is pressed into the hub housing and cannot be replaced separately. An attempt to knock it out will result in deformation of the seat. The exception is rare cases when the hub is intact and the bearing can be replaced with FAG or SKF using a hydraulic press (but this requires professional equipment).

How often should hubs be checked?

Recommended interval:

  • πŸ”Ή Octavia 1.6 MPI: every 100 thousand km.
  • πŸ”Ή Octavia 1.8/2.0 TSI: every 80 thousand km.
  • πŸ”Ή All-wheel drive versions (4x4): every 60–70 thousand km.

After replacement, check the wheel play after 500 km - this is a critical period for the bearing to break in.

What should I do if there is still a hum after replacement?

Probable reasons:

  1. The hub nut is loose - check the moment (should be 120–140 NΒ·m).
  2. Bearing defect β€” if the hum appears immediately, return the part under warranty.
  3. Damaged ABS sensor β€” check the circuit with a multimeter (sensor resistance: 800–1400 Ohm).
Is it possible to replace the hub without removing the axle shaft?

On Octavia with front-wheel drive - yes, if you use a special puller that is fixed on the hub and compresses the bearing. However, for the rear axle (on 4x4) the axle shaft will have to be removed, since the hub sits on the differential splines.