What is a Mercedes-Benz CLA X118 Shooting Brake airbag control unit?
The Mercedes-Benz CLA X118 Shooting Brake airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle, which is crucial for the vehicle's passive safety.
This specific Supplemental Restraint System (SRS) control unit is precisely tailored to the Mercedes-Benz CLA X118 Shooting Brake.
It is responsible for the permanent monitoring and control of all airbag and belt tensioner systems.
Why is the Mercedes-Benz CLA X118 Shooting Brake airbag control unit defective?
The Mercedes-Benz CLA X118 Shooting Brake airbag control unit frequently fails due to internal errors, stored crash data, or communication with other systems failing. This often leads to the activation of the airbag warning light and requires professional repair of the airbag control unit to restore full functionality.
An internal control unit error, often signaled by the airbag warning light, can be the cause.
After an accident, crash data remains stored in the control unit, which makes repair or reset of the module necessary.
Failures can also be caused by voltage spikes, moisture or aging of the electronic components and require repair of the airbag control unit.
Common error codes for Mercedes-Benz CLA X118 Shooting Brake airbag control unit repair
When repairing the Mercedes-Benz CLA X118 Shooting Brake airbag control unit, the error code B220700 is a primary indicator of an internal defect in the control unit itself. This code requires specific diagnosis and is often an indication that a professional repair or replacement of the airbag control unit is necessary.
- B220700 → Internal error in the Supplemental Restraint System (SRS) control unit → Defect in the internal electronics of the airbag control unit.
Further specific codes for this control unit are not documented in the sources reviewed, as errors often occur as general internal control unit errors.
Airbag control unit troubleshooting requires special scanners to identify these codes and determine the exact cause of the failure.
What part numbers are available for the Mercedes-Benz CLA X118 Shooting Brake airbag control unit repair?
For the Mercedes-Benz CLA X118 Shooting Brake airbag control unit repair, the primary and 100% verified OEM part numbers are Mercedes-Benz A117 900 58 00 and Bosch 0 285 011 863. These numbers guarantee exact compatibility with the vehicle's SRS system and are essential for correct spare parts procurement.
The original Mercedes-Benz part number for the airbag control unit is A117 900 58 00 (also called A1179005800).
Bosch is listed as the OEM supplier with part number 0 285 011 863 for this airbag control unit of the CLA X118 Shooting Brake.
These two numbers are the only ones considered 100% compatible and verified for the repair or replacement of the control unit.