Mercedes-Benz C-Class A205 Convertible Airbag Control Unit Repair

Name: Mercedes-Benz C-Class A205 Convertible Airbag Control Unit Repair
Brand: Airbag24
Price: 79 EUR
Availability: InStock

Mercedes-Benz C-Class A205 Convertible Airbag Control Unit Repair at Airbag24

Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.

Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.

Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.

Notes

Mounting position

Repair type

Choose the service that fits your unit.

Which repair matches your fault code?

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Not sure? Just send us an enquiry or give us a call — we're happy to advise you.

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Matching part numbers

Your part number isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.

Repair time

Our estimated repair time for this product is about: 3–4 business days

Which repair matches your fault code?

Below your code you can see what needs to be done.

B2D92
Control unit defective – needs to be repaired
B1000
Control unit defective – needs to be repaired
B1600
Control unit defective – needs to be repaired
AE69
Control unit defective – needs to be repaired
No communication Control unit defective
Control unit defective – needs to be repaired

We can only tell in our workshop whether your unit is defective and can be repaired.

Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.

Specifications

Make: Mercedes-Benz
Model: Mercedes-Benz C-Class
Series: A205 Convertible (2016-2023)

Mercedes-Benz C-Class A205 Convertible — Photo: User:McChizzle · Public domain · cropped

Shipping & repair from Germany

Airbag24 repairs your component in Berlin — usually within 3–4 working days.

Standard shipping within Germany is free; we normally return your part by UPS.

You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.

If you withdraw from the contract, you bear the cost of returning the item.

Google reviews

4.8

Based on 260 reviewsView all reviews →

Top!

Ok.

Works like a charm!

Crash data was deleted. Function has been restored. I am very satisfied..

Automatically translated · Original: German

Sent in the control unit. Repaired in one day and within 2-3 days the unit was back. Top service thank you

Automatically translated · Original: German

Thank God we found this service. Top execution, fast and not too expensive! Hallelujah!

Automatically translated · Original: German

What is a Mercedes-Benz C-Class A205 Convertible airbag control unit?

The Mercedes-Benz C-Class A205 Convertible airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It precisely monitors sensor signals, stores important crash data, and ensures the immediate and proper operation of all airbag modules and belt tensioners in the vehicle for maximum occupant safety.

The airbag control unit, also called ACU (Airbag Control Unit), is a safety-relevant electronic component.

It receives signals from acceleration and crash sensors to assess the severity of an impact and precisely control airbag deployment.

Why is the Mercedes-Benz C-Class A205 Convertible airbag control unit defective?

A Mercedes-Benz C-Class A205 Convertible airbag control unit can malfunction due to internal electrical faults or excessive voltage spikes. After an accident, it also stores crash data that prevents reuse without professional reset, making immediate Mercedes-Benz C-Class A205 Convertible airbag control unit repair essential.

Common causes include internal circuit errors or defective flash memory within the device.

Such defects often lead to the activation of the airbag warning light in the dashboard, indicating a failure.

Even after a minor impact, the control unit may be considered "deployed" and must be reset, even if no airbags have deployed.

A malfunction in the power supply or CAN bus communication can also lead to a failure or the need for a Mercedes-Benz C-Class A205 Convertible airbag control unit repair.

Common error codes for Mercedes-Benz C-Class A205 Convertible airbag control unit repair

When repairing a Mercedes-Benz C-Class A205 Convertible airbag control unit, specific error codes are crucial because they directly indicate internal problems with the control unit or communication errors. These codes shed light on the exact cause of the failure, such as internal defects or unrecovered crash data after an accident that require a unit reset.

B1BC749 → Airbag control unit electrical error → Indicates an internal defect in the control unit itself.
B2D97 → Airbag control unit N2/7 (Airbag Restraint Control Unit) defective → Indicates a hardware or software error of the specific ECU.
B2D92 → Airbag control unit defective → A general error code that signals internal damage to the airbag control unit.
B1000 → Control unit communication error → Signals a disrupted data transmission between the airbag control unit and other vehicle modules.
B1003 → SRS Control Module Error → A generic system error that indicates a problem within the airbag control module.
B119C → SRS Control Unit Error → Also a general SRS trouble code that indicates a malfunction of the control unit.
B1600 → SRS Control Unit Error → Indicates a critical error in the airbag control unit that requires repair or replacement.
AE69 → Internal error control unit N2/14 Lowline → Specific internal error in the control unit software or hardware.
AD67 → SRS control unit defective → Another code that indicates a serious defect in the SRS control unit.
9004 → Voltage too high (control unit) → Indicates an overvoltage that may have damaged the airbag control unit.

What part numbers are available for the Mercedes-Benz C-Class A205 Convertible airbag control unit repair?

For the Mercedes-Benz C-Class A205 Convertible airbag control unit repair, the following part numbers are stored for this repair product: A 205 900 21 41, A 205 900 23 41 and A 205 900 94 45. They belong to airbag control units of this model and can be stated in the repair order.

The stored numbers are manufacturer numbers. The part number of the installed control unit is on its label.

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