Mercedes W220 W164 Wheel Bolt Lock Locking Nut A0009905307

Mercedes-Benz S / M Class Wheel Bolt Lock (W220, W164) is an original wheel security element, designed specifically for selected models of this brand. Thanks to precise fitting to the factory wheel mounting system, it provides effective protection against unauthorized wheel removal and stable load transfer during driving. This is a practical solution for users who want to secure their car's wheels in a safe and functional way.

Specifications and technical data

• SKU: A0009905307
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009905307
• Substitutable numbers: A0009905307, A 000 990 53 07, KZ
• Part type: Wheel Lock
• Category: Wheel Nuts, Bolts & Studs

Purpose and Function of Wheel Bolt Locks

The presented lock belongs to the group of Wheel Locks, Bolts, Nuts, and Studs and is intended for use on the wheels of selected Mercedes-Benz S-Class (W220) and M-Class (W164) models. Its purpose is to reduce the risk of wheel theft by using a special working profile that cooperates exclusively with a dedicated key. This type of solution helps maintain a safety standard consistent with the vehicle manufacturer's intentions.

Construction and Fit to the Wheel Mounting System

The wheel bolt lock has been developed as an element of the wheel mounting system in Mercedes cars, maintaining the correct seating geometry and appropriate working length. The design takes into account the loads resulting from the vehicle's weight, forces acting during braking and acceleration, as well as variable road conditions. Thanks to this, the lock cooperates with the hub, brake disc, and wheel in accordance with factory specifications.

Original origin from the Mercedes-Benz OE group means that the element has been designed for a specific vehicle platform, which translates into proper fitting of the working surfaces, correct transfer of tightening torque, and maintenance of wheel axiality relative to the hub.

Benefits of Using an Original Wheel Lock

Using an original wheel bolt lock on a Mercedes S-Class or M-Class helps maintain the technical consistency of the entire drivetrain. Key benefits include:

• maintaining the factory standard of wheel security against unauthorized removal,
• secure seating in the hub and wheel socket, reducing the risk of operational play,
• compatibility with factory tightening torque parameters,
• no need for adaptation or modification of other wheel mounting elements.

As a used part, the lock comes from a dismantled vehicle, which allows for maintaining the original technical specification while reducing costs compared to a new component. For many users, this is a reasonable compromise between quality and budget, especially when servicing older generation models.

Practical Application in Service

The wheel bolt lock is used both for standard wheel replacement and for drivetrain repairs where it is necessary to restore a complete wheel mounting set. This element is particularly important in situations where:

• the original set of security locks has been damaged or lost,
• the vehicle has had its wheels replaced and a lock matching Mercedes specifications is required,
• the service is restoring factory solutions after previous modifications.

By maintaining the manufacturer's standard, installation proceeds predictably for the mechanic, and the wheel mounting system remains consistent with the vehicle's technical documentation.

Condition and Compatibility Verification

The offered wheel bolt lock is a used item, which in practice means that before installation, it is advisable to verify the condition of the working surfaces and the fit to the specific wheel and hub configuration. It is recommended to select parts based on the vehicle manufacturer's markings or to consult with a mechanic who will assess compatibility with the specific car. This approach helps maintain safe wheel mounting and avoid installation problems.

If you are planning a comprehensive repair or upgrade of the wheel area in your Mercedes and need other parts from the same group, such as mounting bolts, nuts, or guide pins, check the available parts in the category Mercedes Wheel Locks, Bolts, Nuts, and Studs.

For users interested in the broader context of using original used parts in premium vehicles, including selecting components by catalog numbers and service procedures, an article describing the practical aspects of operating Bavarian constructions may be helpful: BMW – Sporty Performance and Precision. How Original Used Parts Extend the Life of a Bavarian Icon?.