How to replace the battery in a ŠKODA Octavia Tour key: detailed instructions with photos and nuances

sat down the key ŠKODA Octavia Tour, and the car stopped responding to the key fob signals? Do not rush to go to the service center - in 90% of cases the problem is solved by replacing the battery. However, even this simple procedure is fraught with pitfalls: from choosing the wrong battery to damaging the case during disassembly. In this article we will analyze all types of Octavia Tour keys (including models with button KESSY and keyless entry), we will show in detail the replacement process with photos, and also reveal unique nuances that even official manuals are silent about.

Feature Octavia Tour (especially restyled versions 2017–2026) - the use of different types of key fobs depending on the configuration. For example, keys with the function Comfort Access require care when disassembling, since an additional immobilizer chip is installed inside. We will tell you how not to damage it and avoid mistakes Key Not Detected after replacing the battery.

Types of ŠKODA Octavia Tour keys and their features

Over the years of production Octavia Tour (2013 to 2026) Chevrolet used three main types of key fobs. Their appearance and internal design are different, so The way to replace the battery will vary.

• 🔑 Standard wrench with retractable blade (2013–2016): the simplest option. Battery - CR2032, the housing can be disassembled without tools.
• 🔐 Key with KESSY button (2017–2020): keyless entry, battery - CR2026. Requires caution when removing the board.
• 🚗 Key fob with Comfort Access function (2020–2026): most difficult. Battery - CR2032, but inside there is an additional immobilizer chip.

How to determine your key type? Look at the back of the keychain:

• If there is an inscription VW AG or SKODA AUTO - this is a standard key.
• If there is a button with the symbol 🚗 (without inscription) - this is KESSY.
• If there is an icon on the case Comfort — you have a key with keyless entry.

Important: keys Octavia Tour after 2020 may have two batteries - main and backup for the immobilizer chip. If after replacing the car does not start, check both!

Which battery to choose: types and brands

Not only the service life of the key, but also the stability of the system depends on the correct choice of battery. KESSY. Using cheap batteries can lead to false alarms or error Key Battery Low on the dashboard.

Key type	Battery type	Recommended Brands	Service life
Standard	CR2032 (3V)	Duracell, Energizer, Varta	2–3 years
KESSY	CR2026 (3V)	Panasonic, Maxell, GP	1.5–2 years
Comfort Access	CR2032 + reserve CR1620	Varta High Energy, Duracell Ultra	1–2 years

⚠️ Attention: Do not use batteries marked LR (for example, LR2032) - they are alkaline and not suitable for keys ŠKODA. Only lithium cells with markings CR!

Advice: if the key only starts working at close range, this is the first sign low battery. Don't wait until it shuts down completely - replace the element in advance.

Step-by-step instructions: how to disassemble the key and replace the battery

The replacement process depends on the type of key. Below are universal instructions suitable for all versions Octavia Tour. If you have a key with Comfort Access, pay attention to additional steps at the end of the section.

1. Disassembling the key body

For a standard key:

1. Find it on the back of the key fob disassembly slot (usually next to the key ring).
2. Insert a plastic spatula or screwdriver into the groove and carefully separate the housing halves.
3. If the case does not give in, slightly heat it with a hairdryer (no higher than 50°C) - this will soften the plastic.

For keys KESSY and Comfort Access:

1. Remove the metal key ring (it is attached to the latch).
2. Under the ring you will find a hidden screw - unscrew it with a Phillips screwdriver.
3. Carefully separate the case, starting with the side without buttons.

2. Removing the old battery

After disassembly you will see a board with a battery. Depending on the key model, the battery can be attached:

• 🔧 Latch (standard key) - pry off the battery with a screwdriver.
• 🧲 Magnetic holder (KESSY) - pull up.
• 🔌 Soldering (Comfort Access) - caution is needed here! Do not pull on the wires.

⚠️ Attention: In the keys Octavia Tour 2020+ under the main battery may be reserve element (usually CR1620). If after replacing the car does not respond to the key, check it too!

3. Installing a new battery

Before installing a new battery:

• Clean the contacts on the board with an alcohol wipe.
• Check the polarity: there should be a marking on the board + and –.
• For keys Comfort Access: Install the backup battery first, then the main battery.

After replacing, reassemble the key in reverse order. If the housing does not close tightly, check:

• 🔄 Is the board installed correctly (compare with the photo taken before disassembly).
• 🔌 Are the wires pinched between the halves of the housing?
• 🔧 Is the screw (for keys) tightened? KESSY).

What should I do if the key does not work after replacement?

1. Check the polarity of the battery - reverse it and try again.

2. Remove the battery and insert it back (sometimes the contacts “stick”).

3. If the key is with Comfort Access, try starting the car by pressing the key to the start button - this will activate the backup chip.

4. If all else fails, contact service - perhaps the binding of the key to the immobilizer has gone wrong.

Common mistakes and how to avoid them

Even experienced drivers make mistakes when replacing the key battery. ŠKODA Octavia Tour. Here are the most common:

1. Using the wrong battery. For example, setting CR2026 instead of CR2032 will result in the key only working close to the car.
2. Damage to contacts. When removing an old battery with a screwdriver, it is easy to scratch the board, which will cause a short circuit.
3. Incorrect assembly. If you mix up the sides of the case, the buttons may stick or not be pressed.
4. Ignoring the backup battery. In the keys with Comfort Access it is responsible for the operation of the immobilizer.

⚠️ Attention: If the indicator on the dashboard lights up after replacing the battery Immobilizer Active, this means that the key is not recognized by the system. The reason may be:

• 🔋 Low backup battery (for Comfort Access).
• 🔌 Damage to the immobilizer chip during disassembly.
• 🔑 Failure to synchronize the key with the control unit.

In this case try:

1. Remove the battery for 10 seconds and insert it back.
2. Place the key on the engine start button and hold for 5 seconds.
3. If it doesn’t help, the key will need to be reprogrammed in the service.

How to extend the life of your key battery

Average key battery life Octavia Tour — 1.5–3 years, but it can be increased by following simple tips:

• 🔌 Do not store the key near metal objects (coins, other keys) - this creates parasitic discharges.
• 📱 Keep the key away from smartphones and wireless chargers — electromagnetic fields accelerate the discharge.
• 🚗 Don't leave the key in the car in the sun — high temperatures shorten battery life.
• 🔋 Use anti-leakage batteries (for example, Duracell Quantum or Energizer Ultimate Lithium).

Interesting fact: in keys with a function Comfort Access The battery discharges faster due to the constant exchange of signals with the machine. If you rarely use keyless entry, you can disable this feature via the car menu:

Settings → Central Locking → Comfort Access → Disable

This will increase the battery life by 30-40%.

What to do if the key is drowned or disassembled by a child

If the key is in the water or it is disassembled carelessly, act quickly:

1. Take the key apart. and remove the battery.
2. Rinse the board with distilled water (not running water!).
3. Dry:
   • 🌞 It's 12 to 24 hours in the sun.
   • 💨 Flower (cold air) - 30-40 minutes.
   • 🔸 In rice - 6-8 hours (less effective, but it is suitable in extreme cases).

Check your contacts corrosion. If there is a green coating - clean with alcohol and a soft brush.

Install a new battery and test the key.

⚠️ Attention: If the key doesn't work after drying, Do not try to repair it yourself. In 90% of cases, the immobilizer chip is damaged, and reprogramming in the service will be required (cost is from 1500 to 3000 rubles).

Tip: If the key is taken apart by a child and lost details, do not try to assemble it without a diagram. There's an Internet. forums of ŠKODA ownersIt contains photos of the insides of the key fobs of different years.

FAQ: Frequent questions about battery replacement in ŠKODA Octavia Tour key

Can I use a battery from a watch or remote?

Nope! Watch batteries (CR2016, CR2026) have lower capacity and voltage. For keys Octavia Tour only suitable CR2032 (3V, 220–240 mAh) or CR2026 (3V, 160-170 mAh). Using other types will lead to unstable operation or breakage of the key.

After the battery is replaced, the car does not see the key. What do I do?

First check:

1. Battery polarity (plus should be on top).
2. Availability of a backup battery (for Comfort Access).
3. Integrity of contacts on the board.

If everything's okay, try it:

• Apply the key to the start button and hold for 10 seconds.
• Remove the battery terminal for 5 minutes (reset of immobilizer errors).

If it doesn’t help, the key needs to be reprogrammed in the service.

How often should the battery be changed?

Service life depends on intensity of use:

• 🔑 Standard key2-3 years.
• 🔐 KESSY: 1.5-2 years.
• 🚗 Comfort Access: 1-1.5 years.

Signs of discharge:

• The key only works at close range.
• A message appears on the dashboard Key Battery Low.
• The buttons on the keychain react with a delay.

Can I replace the battery myself if the key is under warranty?

Yeah, battery replacement. is not a warranty case It does not cancel the warranty on the car. However, if you damage the immobilizer chip during disassembly, you will have to pay for repair or replacement of the key yourself (the cost of a new key is from 8000 to 15000 rubles).

Where to buy a battery for the Octavia Tour key?

Batteries CR2032 and CR2026 sold in:

• 🏪 Supermarkets (Pyaterochka, Magnet - but the quality is often low.
• 📱 Electronics stores (Svyaznoy, M.Video).
• 🚗 Auto stores (AutoSpetsCenter, Exist).
• 🌍 Online (Wildberries, Ozon, AliExpress - but check the production date!).

Tip: buy batteries in a blister pack (not by weight) - so there is less risk of running into a fake.