BMW F30 F31 F32 F33 Grey Wheel Alloy Rim 18" M Star Spoke 400 8J ET:34 7845880

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F30 F31 F32 F33 Grey Wheel Alloy Rim 18" M Star Spoke 400 8J ET:34 is an original light-alloy rim designed for 3 Series models, engineered for precise handling and a cohesive look with the M line. The grey finish of the rim harmonizes with the bodywork, accentuating the car's dynamic character while providing a refined, professional appearance. This is a solution for drivers who expect factory-fitment, solid construction, and aesthetics consistent with the original BMW design.

Specifications and technical data

• SKU: 7845880-10
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845880
• Substitutable numbers: 36117845880, 7845880
• Color: Grey
• Rim diameter: 18"
• Rim width: 8
• Offset (ET): 34
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Purpose and fitment for BMW F30/F31

The rim has been developed specifically for the BMW 3 Series F30/F31 platform, ensuring it maintains the correct suspension geometry and handling characteristics intended by the manufacturer. The M Star Spoke 400 design ensures proper weight distribution of the rim, which promotes stability at higher speeds and predictable vehicle behavior in corners. The bolt pattern and mounting hole diameter are in accordance with the factory requirements for this generation, facilitating installation and eliminating the need for non-factory solutions.

Construction, material, and technical parameters

The rim belongs to the Wheels category and is made of aluminum, which allows for a favorable strength-to-weight ratio. A lighter rim compared to typical steel solutions helps reduce unsprung mass, which translates into better suspension response to road irregularities and more precise handling. The five-hole construction with appropriately selected hole diameters ensures stable seating on the hub and uniform load distribution while driving.

The rim profile has been designed to work with sporty tires typical of M versions and BMW styling packages. The applied parameters of width, diameter, and offset allow for maintaining the correct wheel position in the wheel arch, which is important for both aesthetics and the performance of the suspension and steering system. The grey surface finish effectively masks typical operational dirt while highlighting the lines of the Star Spoke pattern.

Performance characteristics of the alloy rim

The aluminum construction of the M Star Spoke 400 rim provides favorable thermal properties – the rim effectively dissipates heat from the braking system, which is important during dynamic driving and frequent braking. As a result, the braking system can operate in more stable temperature conditions, which promotes consistent performance. The structural rigidity of the rim supports steering precision, and the appropriately selected offset helps maintain factory wheel geometry.

The M Star Spoke 400 pattern, characteristic of sporty BMW configurations, combines visual appeal with functionality – the rim spokes provide adequate space for brake calipers, which is significant for potential brake system upgrades within the same platform. The used nature of the product allows for an economical refresh of the car's appearance while maintaining the original manufacturer's specifications.

Benefits of choosing an original BMW rim

Choosing an original BMW alloy rim for the F30/F31 series primarily means factory-perfect fitment to the hub, suspension, and wheel arches, without the need for spacers or non-standard bolts. Stylistic consistency with other body elements and M packages is also maintained, which is important for preserving the vehicle's value and its compliance with the factory configuration. For many users, it is also important that original rims are designed with the manufacturer's rigorous strength standards in mind.

If you are considering purchasing a used rim, it is worth paying attention to the possibility of surface refurbishment to restore its attractive appearance while maintaining an OEM-compliant structure. Additional tips on assessing the condition of the rim, methods of renovation, and the cost-effectiveness of the purchase can be found in the guide Used rims like new: a guide to buying and refurbishing alloy wheels, which discusses the key aspects of selecting alloy wheels from the secondary market in a practical way.

Expanding wheel configurations for BMW

If you are planning a comprehensive repair or upgrade of the wheel and tire area in your BMW and need other components from the same group, such as additional rims, seasonal sets, or alternative rim patterns, check out the available parts in the BMW Wheels category.

When selecting used components for German cars, including alloy rims, practical tips on which parts are worth buying second-hand can also be helpful. A broader discussion of this topic can be found in the article Renovation and repair of German cars: which used parts are worth buying and which should you avoid?, which will make it easier to make an informed purchasing decision based on technical quality criteria.