BMW 3 E46 318i N46 Rear Left N/S Suspension Leg Brake Disc Wheel Hub Axle

BMW 3 E46 318i N46 Rear Left N/S Suspension Leg Brake Disc Wheel Hub Axle is a complete component mounted on the rear axle on the driver's side. It includes key components responsible for wheel guidance, load transfer, and interaction with the braking system, which allows for efficient and predictable suspension operation. Thanks to the factory design intended for the BMW 3 Series E46 with the N46 engine, the part ensures proper geometry and fitment to the body.

Specifications and technical data

• SKU: 6774777-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774777
• Substitutable numbers: 33326774777, 6774777, 34216758135, 6758135, 34216864056, 6864056, 33321136643, 1136643, 33321094457, 1094457, 33326770803, 6770803, 34211165033, 1165033, 34211165563, 34216855154, 6855154, 33211229493, 1229493, 33211229587, 1229587
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented suspension assembly is intended for the rear left side of the vehicle, which is important for maintaining correct axle geometry and compatibility with other chassis components. Installation in the correct location guarantees proper wheel guidance, stability during braking, and appropriate interaction with the shock absorber and other suspension components.

The element has been designed specifically for the BMW 3 Series E46 in the 318i version with the N46 unit, thanks to which it retains the original mounting points and operating characteristics intended by the manufacturer. This is important both for post-accident repairs and for standard replacement of worn components.

Assembly construction and function in the suspension system

The rear left suspension assembly with brake disc and wheel hub forms a coherent module that:

• transfers loads from the wheel to the body through the suspension structure,
• ensures stable seating of the hub and wheel bearing,
• cooperates with the braking system through an integrated brake disc,
• maintains the correct position of the wheel relative to the body and the vehicle's axle.

Thanks to this configuration, it is possible to maintain the consistency of the suspension, braking system, and vehicle safety systems. Using a complete module facilitates installation and reduces the risk of errors resulting from combining random components.

Benefits of using an original BMW component

The original BMW suspension assembly has been developed for a specific model and engine version, which translates into:

• secure fitment to the body and other chassis components,
• preservation of factory handling characteristics and ride comfort,
• proper cooperation with the stock braking system,
• easier diagnostics and service due to compliance with manufacturer documentation.

Choosing such a solution is particularly beneficial for repairs where consistency with factory specifications and predictable vehicle behavior after part replacement are important.

Part condition and practical application

The element comes from the Suspension replacement kits category, which means it is intended for comprehensive maintenance of a specific area of the chassis. A used suspension assembly allows for economical repair while maintaining the original BMW design, which is especially important in older BMW 3 Series E46 models, where reasonable service costs are important while maintaining correct driving parameters.

Thanks to this solution, it is possible to restore the proper operation of the rear left side of the suspension in one service stage, reducing vehicle downtime and the number of workshop operations.

Technical support and development of suspension knowledge

To better plan repairs and understand the relationships between shock absorbers, control arms, and stabilizers in different models, it is worth reaching for educational material. Practical information on the diagnostics and operation of suspension components can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps to consciously select parts and plan service.

Related BMW Suspension replacement kits

If you are planning a comprehensive repair or upgrade of the suspension zone in your BMW and need other elements from the same group, such as additional suspension assemblies, complete rear axle modules, or mounting kits, check the available parts in the BMW Suspension replacement kits category.