Ignition switch ŠKODA Octavia Tour - a unit that wears out over time due to mechanical stress, dust or careless handling of the key. If you notice that the key is difficult to turn, the contacts are burnt, or the car has completely stopped responding to turning the key, it’s time to think about replacing it. A car service center will charge from 3 to 8 thousand rubles for this work, but if you have the tools and patience, you can do it yourself.

In this article we will look at Step by step process for replacing the ignition switch on Octavia Tour (including models A5 and A7), we will tell you about the necessary tools, typical mistakes and give tips on diagnosing faults. We will pay special attention wiring diagram, since an incorrect connection can lead to a short circuit or failure of the on-board electronics.

Signs of a faulty ignition switch

Before you start replacing, make sure that the problem is in the lock. Often the symptoms of its breakdown are confused with malfunctions immobilizer, contact group or even starter. Here are the key signs that the lock needs replacing:

  • 🔑 The key turns with noticeable force or gets stuck in position ACC/ON.
  • ⚡ When you turn the key, the instruments on the panel do not turn on (there is no reaction to the position ON).
  • 🔥 There is a smell of burning or melted plastic coming from the steering column.
  • 🚗 The car starts only after repeated attempts or “tapping” on the lock.
  • 🔌 The lock contacts are burnt (visible upon visual inspection after removing the casing).

If you experience any of these symptoms, do not delay diagnosis. Ignoring the problem may result in the steering wheel locking in motion or a wiring fire due to a short circuit.

⚠️ Attention: On Octavia Tour with the system Keyless (keyless entry) ignition switch integrated with immobilizer. Replacing it will require reprogramming the keys at the dealership!

Required tools and spare parts

To replace the ignition switch with ŠKODA Octavia Tour you will need:

Tool/spare part Purpose Note
New ignition switch Original or analogue (for example, Valeo, Hella) Original article: 1Z1 905 851 C (for A5), 5E0 905 851 J (for A7)
Socket wrenches (T20, T25, T30) To loosen the steering column bolts It is better to use a set with a ratchet
Phillips head screwdriver Removing plastic panels Preferably with a magnetic tip
Flat head screwdriver Prying latches and latches Thin tip for precise work
Multimeter Checking the contact group To diagnose an open circuit

If you buy a non-original lock, please pay attention to immobilizer compatible. Cheap analogues may not be recognized by the system, and the car will not start even after installation.

📊 What tools do you already have for repairs?
  • Socket wrenches
  • Screwdrivers (cross/flat)
  • Multimeter
  • None of the above

Preparing for replacement: removing the steering column

Before getting to the lock, it is necessary to remove the plastic panels and the lower steering column casing. This stage requires care, since the latches often break if removed carelessly.

  1. Disable negative battery terminal (required!) to avoid short circuit.

  2. Turn the steering wheel 90° to the left - this will make it easier to access the mounting bolts.

  3. Remove the plastic trim under the steering wheel by prying it off with a flat-head screwdriver. On Octavia Tour it is secured with 3-4 latches.

  4. Unscrew the two bolts securing the lower column casing (usually under T20 or T25).

  5. Lower the steering column down by loosening the tilt adjustment bolt (under the hood, near the pedals).

After this you will have access to the ignition switch. At this stage, we recommend taking photographs of the location of the wires and connectors - this will help with reassembly.

Battery terminal disconnected|

The location of the wires has been photographed|

Checked the free play of the steering wheel|

All tools are prepared|-->

Removing the old ignition switch

Now we move on to the most important stage - dismantling the lock. On Octavia Tour it is attached to the steering column with two head bolts T30 (sometimes with anti-screw protection). Here are the step-by-step instructions:

  1. Remove the plastic lock cover by prying it off with a screwdriver. The mounting bolts are hidden underneath.

  2. If the bolts have anti-vandal heads (with cut edges), use a chisel or a special extractor.

  3. Unscrew the bolts and carefully remove the lock from its seat. It may be tight - do not use excessive force to avoid damaging the wiring.

  4. Disconnect the power and contact connectors. On Octavia Tour Usually there are two connectors: the main (power) and additional (for the immobilizer).

If the lock does not budge, check to see if it is preventing it from being removed. steering lock. In some cases, you have to turn the steering wheel slightly left and right to release the mechanism.

⚠️ Attention: On models with DSG (robotic gearbox) when the lock is removed, the transmission emergency mode may be triggered. After installing a new lock, you will need to reset errors via VCDS or similar scanner!

Installing a new lock and connecting wires

Before installing a new lock, compare it with the dismantled one - check the location of the connectors and mounting holes. On Octavia Tour Slight differences may occur between generations.

Connecting the wires is the most critical moment. Incorrect pinouts can damage the engine ECU! Here is the connection diagram for most versions:

Wire color Purpose Locked terminal
Black Weight (GND) 30
Red Food +12V (permanent) 15
Yellow Starter 50
Blue Ignition (ON) R
Green Immobilizer (CAN bus) —

If your lock has a different pinout, check the wiring diagram for your modification Octavia Tour. After connecting, use a multimeter to check the presence of voltage on the contacts in different key positions.

💡

Before final assembly, turn on the ignition (without starting the car) and check the operation of the instrument panel, lights and other electrical devices. If something doesn't work, double-check the wire connections!

Common mistakes and how to avoid them

Even experienced car owners make mistakes when replacing the ignition switch. Here are the most common ones and how to prevent them:

  • 🔧 Wiring damage when removing the lock. Solution: do not pull the wires, but carefully disconnect the connectors.
  • 🔌 Mixed up pinout. Solution: Take photos or label wires before disconnecting.
  • 🔑 Incompatibility of the new lock with the immobilizer. Solution: buy the original or a proven analogue with support VW Group.
  • 🚨 Forgot to reset ECU errors after replacement. Solution: Use a diagnostic scanner (VCDS, OBDeleven).

Another common problem is steering wheel lock after installation. This happens if the blocker labels do not match. In this case, you will have to remove the lock again and adjust its position.

What to do if the car does not start after replacement?

If after installing a new lock Octavia Tour won't start, check:

1. Correct connection of wires (especially +12V and mass).

2. Condition of the fuses (may burn out during a short circuit).

3. Presence of immobilizer errors (key retraining required).

4. Serviceability of the contact group (sometimes the problem is in it, and not in the lock).

Final Steps: Assembly and Testing

After installing the new lock, reassemble everything in the reverse order:

  1. Connect the connectors to the lock and secure them.

  2. Reinstall the lock and tighten the mounting bolts (do not overtighten!).

  3. Replace the plastic panels and steering column cover.

  4. Connect the battery and check the ignition in all key positions.

Start the car and make sure that:

  • 🔥 The engine starts the first time.
  • 🔦 The dashboard works without errors.
  • 🔊 The audible alert and lights turn on normally.

If everything works properly, congratulations, you have successfully completed the replacement! If not, double-check the connection or contact a diagnostician.

💡

On Octavia Tour with the system Start-Stop After replacing the lock, it may be necessary to calibrate the steering position sensor using diagnostic equipment.

FAQ: Frequently asked questions about replacing the ignition switch

Is it possible to replace only the contact group and not the entire lock?

Yes, on Octavia Tour contact group (1Z1 905 857) is sold separately and can be replaced without removing the entire lock. However, if the problem is in the mechanical part (wear of the cylinder, jamming), you will have to change the entire lock.

How long does it take to replace?

If you have the tools and experience - about 1.5–2 hours. It may take a beginner up to 4-5 hours, especially if the bolts are stuck or you have to tinker with the immobilizer.

Does a new lock need to be programmed?

If the lock is original and was purchased with keys, no. If you are installing an analogue or new keys, you will need immobilizer binding through a dealer scanner (for example, ODIS).

What should I do if the immobilizer light comes on after replacement?

This means that the key is not recognized. Try:

  1. Remove the key and reinsert it.
  2. Reset errors via the diagnostic connector.
  3. Reprogram keys (immobilizer PIN required).
Where can I buy an original ignition switch?

Original spare parts for ŠKODA Octavia Tour you can order:

  • From an official dealer (warranty, but expensive).
  • In trusted online stores (Exist.ru, Autodoc).
  • On disassembly (cheaper, but the risk of buying a faulty unit).

Average price of an original lock: 5–8 thousand rubles.