Mercedes W212 Spare Wheel Steel Alloy Rim 17" 4J ET:39 A2124000002

Mercedes W212 Spare Wheel Steel Alloy Rim 17" 4J ET:39 is a practical solution for drivers who value safety and predictability in their daily vehicle operation. This original steel rim from the Rims category has been designed as a spare wheel, providing reliable vehicle support in emergency situations. This pre-owned component allows for an economical yet technically correct replacement of the spare wheel in your Mercedes.

Specifications and technical data

• SKU: A2124000002-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2124000002
• Substitutable numbers: A2124000002, A 212 400 00 02
• Rim diameter: 17"
• Rim width: 4
• Offset (ET): 39
• Hole diameter: 112
• Number of holes: 5
• Rim material: Steel
• Tire width: 155
• Category: Rims

Purpose and design of the spare wheel

The presented steel rim has been developed as a spare wheel for W212 series models, with the intention of ensuring stable vehicle handling in emergency mode. The steel construction used provides adequate rim stiffness and resistance to typical road loads, which is particularly important when driving on a space-saver wheel. Thanks to the optimized rim width and matched tire width, the wheel forms a cohesive set that does not overload the suspension and steering system. The geometric parameters of the rim, including diameter, width, and offset, have been selected according to Mercedes' factory requirements for the W212 series. The properly selected bolt pattern and number of mounting holes allow for correct seating of the rim on the hub, which translates into proper wheel centering and even load distribution.

Mounting parameters and compatibility

The rim belongs to a group of components designed specifically for the Mercedes brand, which facilitates selection in terms of compatibility with the vehicle's running gear. The bolt pattern and diameter are adapted to the factory hubs used in the W212 series, so the spare wheel can be mounted without additional adapters or modifications. The number of mounting holes ensures even pressure of the rim against the hub, which is crucial for driving stability. Selecting the tire width to match the rim geometry allows for maintaining the correct wheel profile, which limits the risk of rubbing against wheel arch and suspension components. A spare wheel configured in this way will prove useful both for short trips to a service center and in situations where it is necessary to cover a longer distance in emergency mode, while observing recommended speed limits.

Material and operational characteristics

The steel construction of the rim ensures predictable behavior under load and resistance to typical operational damage, such as point impacts from road irregularities. In the context of a spare wheel, this is a practical solution – a steel rim is easier to repair and less sensitive to minor deformations than aluminum equivalents. The pre-owned nature of the product allows for reducing vehicle maintenance costs while maintaining the functionality required of an emergency wheel. The properly selected rim offset affects the position of the wheel relative to the wheel arch and suspension components, which is important for driving stability and steering system performance. The applied configuration was developed according to Mercedes' factory specifications, which helps maintain predictable vehicle reactions when driving on a spare wheel.

Practical application and benefits of installation

By installing this spare wheel in your Mercedes W212, you gain functional protection in case of a tire failure on the road. The rim-tire set with an optimized width allows for reducing the weight of the spare wheel, facilitating its storage in the trunk and installation in road conditions. Thanks to factory mounting parameters, the wheel can be installed using standard bolts and tools provided by the vehicle manufacturer. If you are planning a comprehensive repair or upgrade of the running gear in your Mercedes and need other elements from the same group, such as rims, space-saver wheels, or winter wheels, check out the available parts in the Mercedes Rims category.

Additional information and technical support

The item comes from the segment of original used parts, which allows for maintaining consistency with Mercedes factory solutions while reducing service costs. Before installation, it is recommended to perform a standard check of the tire condition and wheel balancing to ensure the smoothest possible operation of the running gear. In case of doubts regarding the selection of components for the steering or suspension system, it is worth using professional service advice. If you are interested in a broader context of the cost-effectiveness of using components from professional dismantling, including steering system components, an article describing the practical aspects of such solutions may be helpful: Steering play and leaks – is a used steering rack from dismantling a good solution.