Mercedes R172 C205 W246 W906 Steering Wheel Mounting Screw Bolt Nut A0009906239

Mercedes R172 C205 W246 W906 Steering Wheel Mounting Screw Bolt Nut is a precision mounting component from the Steering wheels and horn buttons category, designed for the secure seating of the steering wheel on the column. A properly selected mounting bolt ensures a stable mechanical connection, which translates into predictable steering system behavior and safe vehicle operation. Using an original component is a sensible choice when servicing or replacing mounting elements in Mercedes vehicles.

Specifications and technical data

• SKU: A0009906239
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009906239
• Substitutable numbers: A0009906239, A 000 990 62 39
• Category: Steering Wheels & Horn Buttons

Purpose and function of the steering wheel mounting bolt

The steering wheel mounting bolt in Mercedes vehicles is responsible for the permanent connection of the steering wheel to the steering column shaft. A correctly selected element:

• ensures axial and angular alignment of the steering wheel relative to the column,
• minimizes the risk of play in the connection,
• maintains system stability during dynamic maneuvers,
• allows for service in accordance with the manufacturer's guidelines. Thanks to the use of an original mounting component, the proper geometry of the connection and the appropriate operating characteristics of the steering system are maintained.

Benefits of using an original Mercedes component

In the case of elements responsible for mounting the steering wheel, it is crucial to use components that comply with the factory specification. The original mounting bolt:

• is matched to the specific design of the column and steering wheel hub,
• maintains the correct tightening torque and pressure parameters,
• limits the risk of thread damage or socket deformation,
• supports the maintenance of factory safety standards in the steering system. Choosing such a solution is particularly important during work involving the disassembly and reassembly of the steering wheel, e.g., after replacing the steering wheel itself, horn buttons, or other elements in this area.

Application in the steering system and cockpit area

The steering wheel mounting bolt operates in the immediate vicinity of elements responsible for vehicle control and horn operation. Proper mounting affects:

• stable positioning of the steering wheel relative to the instrument cluster and switches,
• grip comfort and repeatable steering wheel rim positioning,
• trouble-free operation of horn buttons and other functions integrated into the steering wheel. Maintaining the factory assembly standard is important both during typical repairs and during interior upgrades, e.g., replacing the steering wheel with a different model within the same platform.

Used condition and service aspects

The offered bolt comes from disassembly, which allows for an economical restoration of the original connection in the steering system. During installation, it is recommended to follow the manufacturer's service procedures, particularly regarding tightening torque and the potential need to replace the element every time the steering wheel is removed. Such an approach supports long-term, repeatable connection performance and reduces the risk of improper installation.

Support for interior selection and upgrades

When planning to replace or upgrade the steering wheel, it is worth considering a complete set of mounting elements and compatibility with the specific equipment version. Helpful guides regarding cockpit configuration and selecting components from the secondary market may be useful – you can find practical tips in the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses, among other things, issues of compatibility, selection, and installation of interior elements. If you are planning a comprehensive repair or upgrade of the steering area in your Mercedes and need other elements from the same group, such as a steering wheel, horn button module, or additional mounting elements, check the available parts in the Mercedes steering wheels and horn buttons category.