What is a Seat Alhambra Reference Mk2 airbag control unit?
The Seat Alhambra Reference Mk2 airbag control unit is the central safety unit in the vehicle, instantly deploying all passive occupant restraint systems such as airbags and seatbelt pretensioners in the event of a collision. It continuously monitors sensors, stores relevant crash data, and is essential for the safety of vehicle occupants.
It receives signals from impact sensors and processes them in milliseconds. Based on this data, the control unit decides whether and to what extent airbag deployment is necessary.
A functioning airbag control unit is crucial for vehicle safety. It is responsible for the safe activation of restraint systems and prevents serious injuries in collisions.
Why is the Seat Alhambra Reference Mk2 airbag control unit defective?
A Seat Alhambra Reference Mk2 airbag control unit often fails because it stores crash data after an accident that needs to be erased, or because it suffers electronic damage due to moisture and aging. In such cases, the airbag warning light illuminates, indicating a malfunction in the safety system.
Because the control unit irretrievably stores crash data in the event of an accident, it must be repaired or replaced after deployment. Otherwise, the airbag warning light remains active and the system is inoperable.
Moisture ingress or age-related wear and tear on the internal electronics often leads to defects. This can cause short circuits or failure of individual components in the control unit.
Voltage fluctuations or improper jump-starting can also damage sensitive electronics. A proper diagnosis is essential to determine the exact cause.
Common error codes for Seat Alhambra Reference Mk2 airbag control unit repair
The most common error code that directly indicates a fault with the Seat Alhambra Reference Mk2 airbag control unit is B200000, which means 'control unit faulty'. This code indicates an internal malfunction within the unit, which usually requires repair or replacement to restore the safety system to full functionality.
- B200000 → Control unit defective → Internal fault of the airbag control unit that requires repair.
This error code B200000 is a generic system error that often occurs after a collision or an electronic defect. It is read during diagnostics by specialized workshops.
Although other codes may affect sensors or modules, B200000 is a clear sign of the control unit failure itself. Professional diagnostics are always advisable to pinpoint the exact cause and ensure a safe repair.
What part numbers are available for the Seat Alhambra Reference Mk2 airbag control unit repair?
For the Seat Alhambra Reference Mk2 airbag control unit repair, the primary and precisely assigned original part number is 7N0 959 655 D from the VAG Group. This OEM number covers most relevant models, although replacement or supplier parts are rarely sold separately and are identified by this VAG number.
The main part number for the Seat Alhambra Mk2 airbag control unit is 7N0 959 655 D.
This number is used by the VAG Group (Volkswagen Group) and is considered the original manufacturer part number.
Specialized repair services such as Airbag24.de confirm this number as the exact assignment for the model.
Alternative OEM numbers from suppliers such as Bosch or Continental are usually not listed separately or are listed under the VAG number.