Mercedes-Benz CLE-Class airbag control unit repair⁽¹⁾

What should I pay attention to with Mercedes-Benz CLE-Klasse airbag control units?

The airbag control unit of the Mercedes-Benz CLE-Klasse evaluates the crash sensors, triggers the airbags and belt tensioners, and reports faults via the airbag warning light. After an accident, it stores crash data and locks itself. Airbag24 repairs the control unit of your vehicle that you send to us.

In the vehicle, the airbag control unit manages the entire restraint system. It processes the signals from the crash sensors, decides when airbags and belt tensioners are triggered, and monitors the components of the system. If it detects a fault, the airbag warning light in the instrument cluster comes on.

After an accident, the control unit stores crash data and locks itself. This is where the repair comes in: Airbag24 erases the crash data and repairs the airbag control unit you send to us. The airbag system is safety-relevant. Removal and any work on the system should therefore be left to a specialist workshop.

Which Mercedes-Benz CLE-Klasse generations are there?

Airbag24 lists the Mercedes-Benz CLE-Klasse in the A236 Cabrio series, which has been built since 2024. You can check whether your vehicle belongs to this series using the vehicle documents or the vehicle identification number (VIN).

The CLE-Klasse is offered as an open variant in the A236 model series. Within a series, control units can differ depending on model year, market and equipment. The correct assignment of the unit is therefore part of the repair.

• A236 Cabrio (since 2024) – open variant of the CLE-Klasse, production is ongoing

The series and model year determine which control unit variant is relevant. The next section explains how to identify your unit clearly.

How do I identify my Mercedes-Benz CLE-Klasse airbag control unit?

The part number on the label of the control unit determines the exact version. In addition, check the model year and equipment of your vehicle, because both decide which variant is fitted.

The part number is usually found on the housing of the control unit and assigns the version clearly. A comparison of the labels only clarifies the assignment. Whether the unit is faulty only becomes clear on testing.

Fault memory entries can include B1000 (airbag control unit faulty or malfunction), B1561 (trigger threshold exceeded, crash data stored) or U0151 (communication with the airbag control unit lost). A single fault code does not prove a defect, however. Only a detailed evaluation shows what is behind it.

Which airbag equipment does the Mercedes-Benz CLE-Klasse have?

Front and side airbags are part of the CLE-Klasse equipment. According to the manufacturer, head airbags for rear passengers are also fitted. The equipment list of your vehicle shows which airbags are actually installed.

According to the manufacturer, the cabriolet is the first Mercedes-Benz cabriolet with head airbags for rear passengers. Sources give different numbers of airbags, so we do not state a fixed figure here and stick to the documented information.

The airbag equipment can vary depending on model year, market and trim level. For the repair, the control unit that matches your version is what counts.

This is how the repair works: a specialist workshop reads the fault memory, disconnects the battery and removes the control unit. You then create a repair request online with Airbag24 and send the unit to us, well packed. The repair takes place in our workshop in Berlin. Processing usually takes 3–4 working days (checking, repairing, testing).

The repaired control unit comes back with all vehicle data and is ready for use immediately after refitting — no coding or programming is necessary.