What is a Skoda Octavia GreenLine Mk3 airbag control unit?
The Skoda Octavia GreenLine Mk3 airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors crash sensors, stores relevant data for accident analysis, and ensures the proper functioning of all active safety modules in the vehicle.
This essential module, suitable for the Skoda Octavia III (Type 5E) of the GreenLine Mk3 series (approx. year of manufacture 2013-2020), is responsible for reliable signal processing.
It processes real-time sensor evaluations and is integrated into the vehicle network via CAN bus to transmit data and enable fault diagnostics.
The robust housing offers protection against shocks, vibrations, moisture and dust, which is essential for the central installation position in the vehicle, often under the dashboard.
Why is the Skoda Octavia GreenLine Mk3 airbag control unit defective?
The Skoda Octavia GreenLine Mk3 airbag control unit can malfunction due to internal memory errors, corrupted software, or a loss of communication with other systems. A failure requires immediate Skoda Octavia GreenLine Mk3 airbag control unit repair, as the safety systems cannot otherwise be triggered in an emergency.
A common cause of a defect is an internal memory error (e.g. error code B1040), which causes the device to malfunction and requires immediate repair.
Software errors (e.g. B1280) or a faulty self-test (B1100) can also damage the control unit and impair the safety functions.
Communication problems (e.g. B1000) with other control units in the vehicle network are also an indicator of a failure or internal problems that make diagnosis in the workshop unavoidable.
Common error codes for Skoda Octavia GreenLine Mk3 airbag control unit repair
During Skoda Octavia GreenLine Mk3 airbag control unit repairs, specific error codes may occur that signal internal problems with the unit. These codes indicate system failures such as communication problems, memory errors, or incomplete self-tests, which require precise diagnosis and expertise to resolve.
- B1000 → Control unit communication error → Data transmission failure to diagnostic devices or vehicle modules.
- B1040 → Internal memory error control unit → Damage to the internal memory or incorrect data storage.
- B1100 → Internal self-test error → Airbag control unit fails the internal self-diagnosis test.
- B1200 → Control unit operation error → General internal malfunction of the airbag ECU.
- B1280 → Airbag ECU software error → Inconsistent or corrupted software in the control unit.
- B1019 → Internal system error (control unit) → Self-detection of a system error within the control unit.
These error codes are specific to the control unit itself and indicate internal problems that require professional repair.
The precise diagnosis and repair of these errors often requires special tools and the factory diagnostic software from VW/Skoda, since free coding is not possible for this safety-relevant component.
What part numbers are available for the Skoda Octavia GreenLine Mk3 airbag control unit repair?
For Skoda Octavia GreenLine Mk3 airbag control unit repairs, the original OEM part numbers 3Q0 959 655 AC and 3Q0 959 655 AS are primarily relevant. These numbers, verified by Volkswagen/Skoda, are the most reliable source for exact replacement parts and ensure full compatibility with your vehicle.
Part number 3Q0 959 655 AC is the most confirmed original OEM number for the airbag control unit in the Skoda Octavia Mk3 GreenLine and comes directly from VW/Skoda.
The variant 3Q0 959 655 AS is listed as a further, slightly revised or follow-up production, is also an original part and fully compatible for the repair of your airbag system.
It is important to note that for the GreenLine Mk3 model, there are no directly accessible OEM numbers from suppliers such as Bosch or Continental that differ from the original VW parts or are listed as direct replacement part numbers.
Accurate part number identification is critical to ensure correct replacement or repair of the airbag control unit and prevent further failures.