Emergency call function works with restrictions after ŠKODA repair: reasons and solutions

You just picked up yours ŠKODA Octavia or Kodiaq from the service, but there is a warning on the instrument panel: "Emergency call function has limitations"? This problem is familiar to many owners of Czech cars after repairs - especially if the work affected electronics, battery or body. System eCall (in Europe) or SOS (in Russia) may stop functioning correctly even after a simple battery replacement or firmware update.

In this article we will look at exact reasons failure of an emergency call, why dealers sometimes “forget” to warn about the consequences, and what to do to return the system to functionality. We will pay special attention to models ŠKODA on the platform MQB (Octavia 4, Kodiaq, Superb 3), where the problem occurs most often. You will also learn how to diagnose a malfunction yourself and when a trip to the service center is indispensable.

Why does eCall/SOS stop working after repair?

Emergency call system ŠKODA integrated into the module telematics (usually located under the center console) and depends on several critical components:

• 🔋 Battery — when the power is turned off, the module resets its settings.
• 📡 GPS/GLONASS antenna — damage or disconnection of the cable during body repair.
• 📱 SIM card - may be deactivated or damaged.
• 🔧 Firmware - update or reset to factory settings.

The most common scenarios leading to function limitation:

1. Replacing or disconnecting the battery — the telematics module loses connection with the CAN bus, re-registration is required.
2. Body repair — damage to the antenna or connectors when working on the roof or rear (where the antenna is usually located).
3. Software update - incorrect firmware via ODIS or VCDS.
4. Installation of non-original components - for example, an alarm system connected to the CAN bus.

In 80% of cases, the problem is solved by re-registering the telematics module through diagnostic equipment (ODIS/ELA), but some services “save” at this stage, leaving the client with a “breakdown” on his hands.

ŠKODA models most affected by the problem

Limitations of the emergency call function most often occur on vehicles built on the platform MQB (since 2012) and MLB (for models with all-wheel drive). The table below shows the models with the most complaints from owners:

Model	Years of manufacture	Typical causes of failure	Decisiveness
Octavia 4 (FL)	2020–present	Software update, battery replacement	High (90%)
Kodiaq (FL)	2017–present	Body repair (antenna)	Average (70%)
Superb 3	2015–2023	Power failure, alarm	High (85%)
Karoq	2017–present	Firmware via VCDS	Low (50%)

Owners ŠKODA Fabia and Rapid they encounter the problem less often - in these models, the emergency call system is often implemented in a simplified manner (without GPS tracking) or is absent altogether (in basic configurations).

⚠️ Attention: If your car is under warranty, don't agree for repairs in unofficial services affecting electronics. Dealers ŠKODA may remove the warranty from the telematics system if traces of tampering are detected.

How to check the operation of the emergency call yourself

Before going to the service center, you can perform preliminary diagnostics. Here are the step-by-step instructions:

1. Check the indication: The instrument panel should not display a constant eCall/SOS malfunction warning. If the icon is blinking, the system is trying to initialize.
2. Test call: Press and hold the SOS button (usually on the ceiling near the ceiling light) for 3-5 seconds. The voice assistant should sound or dial a number.
3. GPS check: Turn on navigation in the standard system - if the map does not determine your location, the problem may be in the antenna.

If the test call does not go through and an error appears on the panel U112100 (loss of connection with the telematics module), the reasons may be as follows:

• 🔌 No power - check the fuses F37 (10A) and F48 (5A) in the block under the steering wheel.
• 📶 No connection to the network — The SIM card may be blocked or there may be no coverage.
• 🔄 Reset settings — the module requires re-registration in ODIS.

What to do if eCall/SOS does not work: step-by-step solution

Depending on the cause of the failure, recovery methods will be different. Below is an algorithm of actions from simple to complex.

1. Reset errors via VCDS (VAG-COM)

If you have access to a diagnostic scanner (for example, VCDS or OBDeleven), follow these steps:

[Select]
[19 - CAN Gateway] → [Security Access] → Enter code 20103
[Adaptation] → Select channel "Transport Mode" → Set to "0" (disabled)
[Close Controller, Go Back - 06]

Then go to module [5F - Information Electr.] and reset errors. If the problem was a temporary glitch, the function should be restored.

2. Re-registration of the telematics module

This method requires access to ODIS Engineering (used in official services). The procedure includes:

• 🔑 Entering the vehicle's VIN number.
• 📋 Select model and year of manufacture.
• 🔄 Running a procedure "Telematics Control Unit - Relearn".

Cost: In official services ŠKODA the procedure costs 1,500–3,000 rubles (excluding diagnostics). Unofficial services can make things cheaper, but the risk of errors is higher.

3. Replacing the SIM card module

If the problem is in the SIM card (error U112300), you can replace it yourself:

1. Remove the plastic trim around the rear view mirror (you will need a plastic spatula).
2. Disconnect the telematics module connector (usually black).
3. Remove the old SIM card and install a new one (see article above).
4. Connect the battery and make a test call.

⚠️ Attention: The new SIM card must be only operator Tele2 (in Russia) or Orange (in Europe). Cards from other operators are not supported by the eCall system!

Common errors when restoring eCall/SOS

Many owners ŠKODA they try to save on repairs, but make critical mistakes that only aggravate the problem. That's it it's impossible do:

• 🚫 Reset control unit settings through Menu → Settings → Reset - this will remove the telematics module binding.
• 🚫 Disconnect the battery for a long time (more than 10 minutes) - the module will lose calibration.
• 🚫 Use non-original SIM cards — the system blocks uncertified chips.
• 🚫 Update firmware using pirated versions of ODIS - this can “kill” the module forever.

Case Study: Owner ŠKODA Kodiaq 2018 after replacing the battery in a garage service, I tried to reset the error via OBDeleven, but instead erased the module calibration data. As a result, a complete flashing was required via ODIS with SIM card replacement - the cost of repairs increased from 2,000 to 15,000 rubles.

How much does the repair cost and is it possible to get a refund?

The cost of restoring the emergency call function depends on the cause of the problem and the region. Below are average prices in Russia (for 2026):

Type of work	Official service	Unofficial service	On your own
Diagnostics + error reset	1 500–2 500 ₽	800–1 500 ₽	0 rubles (if VCDS is available)
Module re-registration	2 000–3 500 ₽	1 500–2 500 ₽	Impossible
Replacing the SIM card	3 000–5 000 ₽	2 000–3 500 ₽	1,000–1,500 rubles (on your own)
Antenna repair/replacement	6 000–12 000 ₽	4 000–8 000 ₽	Impossible

If a problem occurs after repair in the official service, you have the right to demand free repair of the fault under warranty (Article 29 of the Law “On Protection of Consumer Rights”). To do this:

1. Write a complaint addressed to the director of the service center with a requirement to eliminate the defect.
2. Attach photos of the error on the instrument panel.
3. Indicate the repair date and work order number.

The period for consideration of a claim is 10 days. If the service refuses to fix the error, you can contact Rospotrebnadzor or court.

FAQ: Frequently asked questions about eCall/SOS malfunctions in ŠKODA

Is it possible to drive with a non-working emergency call?

Technically yes, but this violates the requirements of the Technical Regulations of the Customs Union (TR CU 018/2011), according to which the eCall system must be operational. In the event of an accident, this can make it difficult to receive an insurance payment.

Why did SOS stop working after replacing the battery?

The telematics module loses communication with the CAN bus when the power is turned off. Required re-registration through ODIS or VCDS. Some services “forget” to do this, leaving an error.

Is it possible to disable the eCall fault warning?

Technically yes, through VCDS (channel IDE05201-MAS00764), but this not recommended. The system may not work in an emergency.

How long does the repair take?

If the problem is resetting the settings - 30-60 minutes. If the antenna or SIM card needs to be replaced - 2–4 hours (including diagnostics).

Where is the telematics module located in the ŠKODA Octavia?

In most models on the platform MQB it is located behind the interior lamp (you will need to remove the lining). B Superb and Kodiaq can be hidden under the center console.