BMW Z4 G29 airbag control unit repair

What is a BMW Z4 G29 airbag control unit?

The BMW Z4 G29 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, making it essential for your vehicle's passive safety.

This module, also known as SRS-ACSM, is responsible for the precise control of the airbags and seat belt pretensioners.

It processes real-time data from various sensors in the vehicle to respond quickly and reliably in an emergency.

The intact function of the control unit is crucial for your safety and that of your BMW Z4 G29.

Why is the BMW Z4 G29 airbag control unit defective?

The BMW Z4 G29 airbag control unit often fails because it irretrievably stores crash data after an accident or develops internal hardware errors caused by aging or electrical short circuits. This often leads to the airbag warning light illuminating.

A common reason for failure is the storage of crash data after an accident, which blocks the control unit.

Internal hardware errors or software corruption can also cause the control unit to break and no longer function properly.

Sporadic short circuits in the airbag ignition circuits can also damage the control unit or cause malfunctions.

In such cases, a BMW Z4 G29 airbag control unit repair is often the most economical solution.

Common error codes for BMW Z4 G29 airbag control unit repair

During a BMW Z4 G29 airbag control unit repair, specialists diagnose specific error codes that indicate internal defects, short circuits in the ignition circuits, or unremoved crash data. These codes help pinpoint the exact problem and perform the repair.

• 95AF → Control unit error → Internal defect of the airbag control unit
• 95AB → Control unit error → Failure or defect in the airbag control unit
• 98E9 → Short circuit to positive → ignition circuit (e.g. thorax airbag/knee airbag) or wiring
• 98D3 → Short circuit to ground → Ignition circuit (e.g. passenger front airbag stage 2) or control unit
• 9AF6 → Airbag control unit error → Unclear error in the system, according to user forums a difficult to solve problem
• 93A8 / 93E5 → Short circuit to ground → Hardware error in the control unit or the wiring
• Crash data stored → Indelible crash data → Stored in the control unit after an accident

What part numbers are available for the BMW Z4 G29 airbag control unit repair?

For BMW Z4 G29 airbag control unit repairs, several verified OEM part numbers are relevant, allowing for precise identification and replacement of the appropriate module. These numbers confirm compatibility with your vehicle and ensure original quality for the repair.

Three 100% verified original OEM part numbers for the airbag control unit of the BMW Z4 G29 were identified.

These part numbers are crucial for a precise diagnosis and the correct BMW Z4 G29 airbag control unit repair.

These include: 65 77 9 118 749 01 (BMW/Continental), 32 30 7 939 649 (BMW) and 07 14 9 272 649 (BMW).

It is always recommended to check the part number against the vehicle identification number (VIN) before performing any repairs.

Other supplier numbers could not be verified conclusively for the Z4 G29, so we focus on the confirmed OEM numbers.