Audi S5 F5 Wiper Indicator Stalk Squib Combination Switch 4M0907129HN

Audi S5 F5 Wiper Indicator Stalk Squib Combination Switch is an original component from the Switches, control elements and ignition locks group, designed for precise control of steering column functions. Using a factory Audi solution ensures electronic consistency, ergonomic operation, and proper integration with the driver's airbag.

Specifications and technical data

• SKU: 4M0907129HN
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0907129HN
• Substitutable numbers: 4M0 907 129 HN, 4M0907129HN, 4N0 907 129 PP, 4N0907129PP
• Part type: Switch Assembly
• Category: Switches & Controls

Function and application in the Audi S5 F5

The presented switch is responsible for operating the wipers and turn signals, while the integrated airbag squib ensures signal transmission between the airbag, steering wheel buttons, and the vehicle's electrical system. Using a complete module with a squib helps reduce the risk of errors in safety systems and facilitates diagnostics in the event of faults within the steering column area. The component is dedicated to Audi vehicles, which translates into a proper fit for the steering column, appropriate stalk travel, and predictable operation of all control functions.

Design and integration with the control system

The wiper and turn signal switch in this model is structurally connected to the airbag squib, forming a single module mounted directly on the steering column. This solution:

• simplifies the assembly and disassembly of the entire unit,
• ensures consistent routing of electrical signals,
• reduces the number of connections that could cause looseness or circuit interruptions. Thanks to factory integration with the driver's airbag system, the module works with the vehicle's electronics according to the manufacturer's specifications, which is important for both operational comfort and safety.

Benefits of using an original used module

Choosing an original, used switch module with an airbag squib allows you to maintain the factory operating characteristics of the switches without the need for aftermarket replacements of uncertain quality. This solution is particularly beneficial for:

• repairs after a collision where the driver's airbag was deployed,
• damage to the airbag squib (airbag errors, communication interruptions),
• mechanical wear of the stalks (looseness, lack of tactile positions, unstable operation). The original component from this group maintains compatibility with the Audi electrical system and the operating parameters of safety systems, which is essential when servicing modern electronic systems.

Selection and vehicle compatibility

To correctly select the wiper, turn signal switch, and airbag squib for a specific Audi version, it is worth paying attention to the manufacturer's markings, equipment configuration, and the type of steering wheel used. The product has an assigned OEM part number and interchangeable numbers, which facilitate verification of compatibility with a given vehicle in service catalogs or with a technical advisor. The component should be installed in accordance with the manufacturer's procedures, observing safety rules when working with airbag systems (disconnecting the power supply, following the correct sequence for removing and installing the steering wheel and airbag).

Repair expansion and technical knowledge

If you are planning a comprehensive repair or upgrade of the steering column area in your Audi and need other components from the same group, such as additional switches, control modules, or ignition lock elements, check the available parts in the Audi Switches, control elements and ignition locks category. When performing service work on vehicle electronics and safety systems, it is worth using verified technical information. A helpful article describing when it is worth reaching for original used components instead of replacing entire assemblies may be useful – you can find more on this topic in the post Loud exhaust operation – when is it worth replacing the muffler and other exhaust system components with original used parts?.