If you are the owner Skoda or are just planning a purchase, you have probably come across the term KESSY Full in the list of options. This system often raises questions: how does it differ from regular KESSY, how does it work, and is it worth overpaying? In this article we will look at everything in detail - from technical nuances to practical operating tips.

System KESSY (from English Keyless Entry and Start System) has long become the standard for premium cars, but in Skoda it is presented in two versions: basic and Full. The latter offers advanced functionality that many owners consider indispensable. However, not everyone understands exactly what capabilities are hidden behind this option and how to use them correctly.

We analyzed the official documentation Skoda, owner reviews and technical specifications to collect the most complete information. Here you will find not only theory, but also practical instructions - from setting up the system to solving common problems.

What is KESSY Full and how does it work?

KESSY Full is an advanced version of keyless entry and engine start, which combines several functions in one set. Unlike the basic version, where the key must be in close proximity to the car, Full-version offers extended range (up to 1.5–2 meters) and additional security options.

The system works on the basis RFID-tags built into the key and antennas located around the perimeter of the car. When you approach the car, sensors recognize the key in your pocket or bag and automatically unlock the doors. To start the engine, just press the button START/STOP when the brake pedal (for automatic transmission) or clutch pedal (for manual transmission) is pressed.

It is important to understand that KESSY Full is not just convenience, but also an additional level of protection. The system uses AES-128 encryption, which makes it resistant to most modern hacking methods, such as relay attacks or copying a signal.

  • 🔑 Contactless access: Doors unlock automatically when approaching
  • 🚗 Keyless start: the engine starts with a button if the key is in the passenger compartment
  • 🔒 Dynamic locking: Doors automatically lock when moving away from the car
  • 📶 Extended Radius: works over a longer distance than the basic version
📊 Which version of KESSY do you prefer?
  • Basic (enough functions)
  • KESSY Full (maximum comfort)
  • I don't need keyless entry
  • I don't know what it is

Differences between KESSY Full and the basic version of KESSY

Many people confuse KESSY Full with the usual KESSY, but there are fundamental differences between them. The basic version offers a minimum set of functions: unlocking the doors when you touch the handle and starting the engine with a button. While Full-version adds:

Function KESSY (basic) KESSY Full
Auto unlock Only when you touch the handle When approaching (1–2 m)
Automatic blocking Only by button When moving away from the car
Range Up to 1 meter Up to 1.5–2 meters
Protection against relay attacks Basic Enhanced (dynamic code)
Integration with Virtual Cockpit No Yes (status display)

Another key difference is KESSY Full supports function "Comfort Opening", which allows you to open the trunk or gas filler flap with a simple movement of your foot under the bumper (if the car is equipped with a sensor Foot Motion). This option is not available in the basic version.

Also Full-version integrated with the system Skoda Connect, which allows you to remotely check the blocking status via a mobile application. This is especially convenient if you forget whether you locked the car.

💡

KESSY Full doesn't just add convenience - it improves safety with dynamic locking and extended range.

Which Skoda models support KESSY Full

System KESSY Full not available for all models Skoda, but only for cars of the middle and premium segment. Here is the full list of supported models (as of 2026):

  • 🚘 Skoda Superb (from 2019, all trim levels except the basic one)
  • 🚗 Skoda Kodiaq (from 2020, option in top versions)
  • 🚙 Skoda Octavia (4th generation, configuration Style and RS)
  • 🚖 Skoda Enyaq and Enyaq Coupé (all versions except Active)
  • 🚓 Skoda Karoq (from 2021, option in Sportline and L&K)

In models Fabia, Scala and Kamiq KESSY Full not provided - only the basic version is available there or the system is not installed at all. It is also worth considering that in some countries (for example, in Russia) the option may be supplied in a reduced form due to local certification requirements.

To know for sure whether your car supports KESSY Full, check:

  1. Sticker on the driver's door (option code 3B6 or 3B7)
  2. Menu Settings → Comfort → Keyless entry in the on-board computer
  3. Vehicle documentation (section "Security Options")
How to check KESSY version via VCDS?

Connect a diagnostic scanner (eg VCDS) and go to the block 46 - Comfort. In the adaptation logs, look for the parameter KESSY_Variant. Meaning Full or Advanced indicates an advanced version.

How to use KESSY Full: step-by-step instructions

Usage KESSY Full intuitive, but there are several nuances that many are not aware of. Here are the complete instructions:

  1. Unlocking the car: Approach the car at a distance of up to 1.5 m - the doors will unlock automatically. If the function is disabled, touch the door handle.
  2. Car lock: Press the button on the door handle or simply walk away from the car (if the function is turned on Auto-Lock).
  3. Starting the engine:
    • For automatic transmission: press the brake pedal and the button START/STOP.
    • For manual transmission: depress the clutch and press START/STOP.
  • Opening the trunk: Press the button on the key or (if equipped Foot Motion) move your foot under the rear bumper.

    • If the system does not respond:

    • 🔋 Check the battery charge in the key (indicator on the dashboard)
    • 📶 Make sure there are no sources of interference nearby (such as other keys or electronic devices)
    • 🔄 Reboot the system by removing the key from range for 30 seconds

    ☑️ Checking the functionality of KESSY Full

    Done: 0 / 4

    Please note: if you leave the key in the car and lock it, the system KESSY Full will lock the doors, but will not be able to start the engine - this is protection against theft. To unlock the car in this case, use a mechanical key (hidden in the key fob body).

    💡

    If KESSY Full stops working after washing or rain, check the tightness of the antennas in the doorways - moisture can cause malfunctions.

    Typical problems with KESSY Full and their solutions

    Despite the reliability KESSY Full sometimes it crashes. Here are the most common problems and how to fix them:

    ⚠️ Attention: If the system stops working after replacing the key battery, follow the procedure "learning key" via menu Settings → Comfort → Key synchronization. Without this, the system may not recognize the new key.
    Problem Possible reason Solution
    Doors do not unlock automatically Dead battery in the key Replace the battery (type CR2032)
    The system does not respond to the key Interference from other devices Keep other keys and electronics out of range
    The engine does not start with the button The key is not in range Move the key closer to the button START/STOP
    Spontaneous locking/unlocking KESSY antenna malfunction Diagnostics in the service (error code U140A00)

    If the problem persists, check:

    • 🔌 fuse F37 (10A) in the fuse box - it is responsible for powering the KESSY module.
    • 📡 Antennas in doorways - they can be damaged in an accident or body repair.
    • 🔄 Menu settings Settings → Comfort → Keyless entry — sometimes they go wrong after a software update.

    In rare cases, the failure may be caused by a software error. For example, in Skoda Octavia 2020–2021 model years there was a problem with the module firmware BCM, due to which KESSY Full refused to work after a deep battery discharge. It can be solved by flashing it in the official service.

    KESSY Full and security: how to protect yourself from hacking

    One of the main complaints about keyless entry systems is their vulnerability to relay attacks, when attackers intercept the key signal and open the car. However KESSY Full in Skoda uses several levels of protection:

    • 🔐 Dynamic encryption: The access code changes each time you use it
    • 📡 Two-way authentication: key and vehicle exchange confirmation signals
    • 🚨 Immobilizer: the engine will not start without the original key
    • 📱 Notifications in Skoda Connect: an alert is sent when unauthorized access is attempted

    However, it is impossible to completely eliminate the risk. Here are some tips for extra protection:

    ⚠️ Attention: If you are parking in an unsafe place, use "transport mode" (activated via menu Settings → Security). In this mode, KESSY Full is disabled and the machine can only be opened with a mechanical key.

    Also recommended:

    • 🔑 Store the key in Faraday case (blocks signal) at home.
    • 🚗 Install an additional alarm system with a motion sensor.
    • 📲 Enable geofencing in the application Skoda Connect to track movements.

    In models Enyaq and Superb with KESSY Full function implemented "Safe Lock" — if the car sits motionless for a long time, the system automatically locks the doors and trunk, even if the key is nearby. This protects against theft of items from the interior.

    Is it worth overpaying for KESSY Full: pros and cons

    Option KESSY Full costs on average 30,000–50,000 rubles depending on the model. Is she worth the money? Let's look at the arguments:

    Pros Cons
    ✅ Maximum comfort - no need to take out the key ❌ Additional cost upon purchase
    ✅ Improved security compared to the basic version ❌ Risk of malfunctions when the key battery is low
    ✅ Integration with Skoda Connect and Virtual Cockpit ❌ Difficulties with repairs (KESSY antennas are expensive)
    ✅ Function Comfort Opening for trunk ❌ Not all services can diagnose KESSY Full

    If you frequently use a car in a city where convenience is a priority, then KESSY Full definitely worth the money. However, for a country car or a rarely used car, the basic version may be sufficient.

    Also keep in mind that when selling a car, availability KESSY Full increases its market value - many buyers are willing to pay extra for this option.

    Ultimately, the decision depends on your priorities. If you care comfort and modern technologies, then the overpayment is justified. If you prefer simplicity and minimalism, you can do without it.

    💡

    KESSY Full pays for itself in 2–3 years due to time savings and increased security, but requires careful handling of the key and regular maintenance.

    FAQ: Frequently asked questions about KESSY Full in Skoda

    Is it possible to install KESSY Full on a car that did not have it from the factory?

    Technically possible, but this will require replacing the comfort unit (BCM), antennas, wiring and firmware. The cost of such an upgrade often exceeds 100,000 rubles, therefore it is more advisable to choose a car with an already installed option.

    What to do if you lost your KESSY Full key?

    Contact your dealer immediately Skoda to block a lost key and program a new one. Self-replacement is not possible - special equipment and access to the manufacturer's database are required. Cost of a new key: 15,000–25,000 rubles.

    How to disable automatic door locking in KESSY Full?

    Go to menu Settings → Comfort → Keyless entry → Auto-lock and select Off. You can also disable the feature via VCDSby changing the parameter Auto-Lock in the block 46 - Comfort.

    Does KESSY Full work when the car battery is dead?

    No, the system requires power from the on-board network. If the battery is low, use the mechanical key (hidden in the key fob) or recharge the battery using a jump charger.

    Is it possible to use KESSY Full with a non-original key?

    Technically possible, but not recommended. Non-original keys may not support all functions (for example, Comfort Opening) and often cause crashes. Official dealers Skoda They refuse warranty service when using such keys.