Skoda Kodiaq steering rack: how to recognize a fault and what to do

Skoda Kodiaq is one of the most popular crossovers in Russia, but even such a reliable car can develop steering problems over time. The steering rack is a critical component on which not only driving comfort, but also safety depends. If you notice a knocking sound when turning the steering wheel, play or uneven force, this is a reason to check the condition of the rack.

In this article we will look at how the steering rack works on Kodiaq (including versions with electric amplifier EPS and hydraulic HPS), what symptoms indicate its wear, and whether the unit can be repaired instead of a complete replacement. You will also learn which spare parts to choose for repairs and how to avoid common mistakes during maintenance.

Skoda Kodiaq steering rack design: design features

On Skoda Kodiaq (generation NS7, 2017–present) two types of steering racks are installed depending on the configuration:

• 🔧 Electromechanical rack (EPS) - standard for most versions. The amplifier is powered by an electric motor integrated into the rack housing. Advantages: economical, no liquid, less weight.
• 💧 Hydraulic Rack (HPS) - occurs less frequently, mainly on diesel modifications or older batches. Requires maintenance (fluid replacement every 60–90 thousand km).

Structurally, the rack Kodiaq consists of:

• 🔩 A toothed shaft (gear) connected to the steering wheel through a driveshaft.
• 🔄 A rack and pinion mechanism that converts the rotation of the steering wheel into linear movement of the rods.
• 🛠️ Power steering (electric or hydraulic), which reduces steering effort.
• 🔗 Tips and rods that transmit movement to the wheels.

Feature of the slats Kodiaq - use aluminum body (unlike steel slats on older models Skoda). This reduces weight, but requires care during repairs: the body is easy to deform with unqualified intervention.

Signs of a faulty steering rack: when to sound the alarm

The first symptoms of rack problems are often ignored until they become critical. Pay attention to the following signals:

⚠️ Attention: If, when driving at speeds above 60 km/h, steering wheel vibration radiating into the rack, this may indicate wear on the internal bearings or bushings. Such a defect is dangerous - during a sharp maneuver, the rack can jam.

• 🔊 Knocking sound when turning the steering wheel (especially on uneven surfaces) is the most common symptom. Source: wear of the shaft teeth or play in the rod connections.
• 🌀 Stiff steering wheel rotation in one direction (more often when turning left) - indicates problems with the amplifier or jamming of the mechanism.
• 💦 Liquid leak (for hydraulic racks) - check the level in the tank and the condition of the seals.
• 🚗 Spontaneous shift of the steering wheel when moving in a straight line - a sign of play in the rack or gear wear.

On Kodiaq with EPS an additional symptom may be error P0571 (torque sensor malfunction) or C1022 (problems with the amplifier electric motor). These codes are read by a diagnostic scanner (for example, Launch X431 or Autel).

Symptom	Probable Cause	Urgency of repair
Knocking sound when turning in place	Worn bushings or loose rods	Medium (can be used, but not put off)
Steering wheel vibration at speed	Shaft or bearing deformation	High (risk of jamming)
Fluid leak (HPS)	Worn seals or cracked housing	High (will cause amplifier failure)
Error C1022 (EPS)	Motor or wiring fault	Medium (possible loss of amplifier)

Steering rack diagnostics: how to check it yourself

Before going to the service center, you can perform preliminary diagnostics:

1. Inspect the rack for fluid leaks (for HPS)

2. Rock the steering wheel left and right in place - play of more than 10° requires attention

3. Listen to the rack while driving (at a speed of 20–30 km/h) for knocking noises

4. Check error codes with a scanner (if available)

5. Inspect the tie rod boots for integrity -->

For in-depth diagnostics you will need:

• 🔧 Lift or inspection hole - to inspect the rail from below.
• 🔍 Mechanic's stethoscope - to accurately determine the source of the knock.
• 📊 Diagnostic scanner - for reading errors EPS.

If you find play in the rack, try the following test:

1. Start the car and leave the steering wheel in neutral.
2. Turn the steering wheel sharply 45° left and right, listening for sounds.
3. If the knocking noise appears in only one direction, the problem is the wear of the shaft teeth.

Repair or replacement: what to choose for Skoda Kodiaq

Depending on the nature of the fault, the steering rack can be:

• 🔧 Repair - if bushings, seals or bearings are worn out. Average repair cost: 15–25 thousand rubles (with spare parts).
• 🆕 Replace with a new one — if the housing, shaft or electric motor (EPS) is damaged. Price of the original slats: 80–120 thousand rubles.
• ♻️ Set up a contract - a budget option (30-50 thousand rubles), but the risk of repeated breakdowns is higher.

On Kodiaq Most often they fail:

• 🔄 Rack bushings - wear out by 100–150 thousand km.
• 🔌 Electric motor EPS - suffers from overheating or contact corrosion.
• 🛢️ Oil seals (for HPS) - leak after 80–100 thousand km.

Rail repair is justified if:

• Only the bushings or boots are damaged.
• The body is not deformed.
• The electric motor (EPS) is OK.

⚠️ Attention: After replacing the rack with Kodiaq necessarily need to be done reset power steering adaptations through a diagnostic scanner. Without this, the steering wheel may rotate jerkily or not return to neutral.

What happens if you don’t reset the adaptations after replacing the rack?

Without resetting adaptations, the electronic control unit (ECU) will use old calibration data, resulting in:

- uneven force on the steering wheel,

- spontaneous steering at speed,

- errors C1022 or P0571 in the ECU memory.

The reset takes 5–10 minutes and is done through the menu Block 44 / 19 → Basic installation (for scanners VCDS or ODIS).

Selection of spare parts: original vs analogues

When repairing or replacing the rack with Skoda Kodiaq you can choose:

Part type	Article (example)	Average price, rubles	Pros	Cons
Original rack (EPS)	5Q0 423 057 AX	90 000–110 000	2 year warranty, precise fit	High price, long delivery time
Analogue (TRW, ZF)	JTE500 (TRW)	50 000–70 000	The quality is close to the original	There may be fakes
Repair kit (bushings, oil seals)	321 423 057 (Febi)	3 000–8 000	Low price, suitable for repair	Requires a master's qualification

When choosing analogues, pay attention to:

• 📦 Packaging — original spare parts Skoda/VW have a hologram and barcode.
• 🔍 Marking — the article number matching the catalog must be engraved on the rail ETKA.
• 🛡️ Guarantee — at official dealers it is 24 months.

For EPS-rack it is critical that the electric motor has the same power as the original. For example, on Kodiaq 2.0 TSI the motor is installed on 12 V, 80 W, and on diesel versions - 12 V, 100 W.

Step-by-step instructions for replacing the steering rack

Replacing the rack with Skoda Kodiaq - a labor-intensive process that requires special tools. If you decide to do it yourself, follow the algorithm:

1. Set of sockets and socket wrenches (10–19 mm)

2. Steering rod puller

3. Jack and supports

4. Torque wrench (for tightening bolts)

5. Scanner for resetting adaptations (VCDS, ODIS)-->

Step 1. Preparation

• Disconnect the battery (remove the negative terminal).
• Place the car on stands by removing the front wheels.
• Drain the liquid (for HPS) or disconnect the electric motor connector (for EPS).

Step 2. Dismantling the old rail

1. Disconnect the tie rods from the steering knuckles (use a puller).
2. Unscrew the bolts securing the rack to the subframe (4 M12 bolts).
3. Inside, disconnect the propeller shaft from the rack shaft (13 mm bolt).
4. Carefully remove the rack through the wheel arch.

Step 3. Installing a new rail

• Transfer the rods from the old rack to the new one (if they are in good condition).
• Install the rack in the reverse order, observing the tightening torques:
  • Bolts for fastening to the subframe: 60 Nm.
  • Cardan shaft bolt: 35 Nm.
• Connect the connectors (for EPS) or hoses (for HPS).

Step 4. Completion

• Fill with liquid (for HPS) and bleed the system.
• Connect the battery and reset the adaptations through the scanner.
• Check the operation of the steering wheel while driving (no jerking, knocking, or spontaneous movements).

⚠️ Attention: When installing the rack it's impossible Rotate the shaft without connected rods - this can damage the internal mechanisms. Also avoid hitting the rack housing, especially if it is aluminum.

Prevention and increase in rack service life

To ensure that the steering rack is on Skoda Kodiaq lasted longer, follow the recommendations:

• 🛑 Avoid driving through deep potholes at high speed - This is the main reason for impacts on the rack.
• 🔄 Check the linkage boots regularly — their damage leads to dirt getting into the mechanism.
• 💧 Change power steering fluid every 60 thousand km (for HPS).
• 🔌 Monitor the condition of the electric motor contacts (for EPS) - oxidation leads to overheating.

On Kodiaq with EPS useful to do once a year torque sensor calibration. To do this:

1. Turn the steering wheel all the way left and right 3 times.
2. Stop the engine, then start it again.
3. Check if the steering wheel returns to neutral when driving in a straight line.

If you often drive off-road, install crankcase protection, which partially covers the rail from impacts. It is also recommended to treat rubber boots every 20 thousand km silicone grease to prevent cracking.

FAQ: Frequently asked questions about the Skoda Kodiaq steering rack

Is it possible to drive with a knocking rack?

Short term - yes, but it is dangerous. A knock indicates play in the mechanism, which can lead to the rack jamming at speed. We recommend diagnosis within 1–2 weeks.

How long does the steering rack last on a Kodiaq?

Average resource:

• EPS: 150–200 thousand km (with careful operation).
• HPS: 100–150 thousand km (requires maintenance).

What should I do if, after replacing the rack, the steering wheel does not return to neutral?

Required basic power steering installation through a diagnostic scanner. Without this, the ECU will not recognize the new rack.

Is it possible to repair an EPS rail yourself?

No, unless you have experience with electronics. B EPS-rails require disassembling the electric motor and calibrating the sensors, which is impossible without special equipment.

What kind of fluid should I put in the Kodiaq power steering?

Official recommendation - VW G 004 000 M2 (green). System volume: ~1 l. Do not mix with other liquids!