BMW F30 Suspension Coil Rear Spring Left Right N/O/S Set 6855544

BMW F30 Suspension Coil Rear Spring Left Right N/O/S Set is a set of two suspension elements designed for the left and right side of the rear axle. The original BMW design ensures stable handling, predictable suspension performance, and proper body support during daily use. The set is suitable for users looking for factory-standard handling characteristics rather than random aftermarket replacements.

Specifications and technical data

• SKU: 6855544
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6855544
• Substitutable numbers: 6855544, 33536855544
• Location on the vehicle: Rear, Right, Left
• Category: Leaf & Coil Springs

Purpose and function in the suspension system

The set of rear springs for the BMW 3 Series F30 operates within the drive axle, responsible for maintaining the correct vehicle height and controlling suspension deflection under load. These components work in conjunction with shock absorbers, stabilizer bars, and other chassis parts, influencing:

• maintaining correct wheel geometry within the operating range,
• even load distribution between the left and right sides,
• damping vibrations resulting from road surface irregularities,
• vehicle stability during braking and acceleration.

Rear springs are crucial for maintaining predictable car behavior in corners and for the comfort of passengers in the rear seat.

Construction and fitment for BMW F30

The offered set includes two springs designed for the left and right side of the rear axle, which allows for symmetrical suspension operation. The elements have been designed specifically for the BMW F30 platform, ensuring that factory deflection and progression characteristics are maintained, as well as proper fitment to spring seats and shock absorber mounts.

The original origin from the Leaf and coil springs group means that the coil geometry, wire diameter, and operating height are in accordance with the vehicle manufacturer's specifications. This helps avoid problems typical of random replacements, such as uneven vehicle height, excessive body roll, or unpredictable reactions to rapid load changes.

Benefits of using original BMW springs

Using factory springs in a BMW F30 brings measurable operational benefits:

• Consistent handling – the car retains the driving characteristics intended by BMW engineers, without unwanted changes in body balance.
• Optimal cooperation with stock shock absorbers – no need to modify other suspension components.
• Uniform operation of the left and right sides – a complete pair minimizes the risk of differences in deflection and body roll.
• Better vehicle control under full load – more stable behavior when carrying passengers and luggage.

For users who want to restore factory driving properties after the original elements have worn out, such a set is a practical and technically safe solution.

Condition, verification, and selection based on technical data

The springs come from disassembly and are offered as used parts, which allows for economical suspension repair while maintaining the original BMW specification. Each set is visually verified for coil continuity, absence of cracks, and excessive corrosion in the working zones. Thanks to this, the user receives a component prepared for further operation in real road conditions.

Selection is based on manufacturer data, such as part markings and vehicle placement. In practice, this means that the springs are designed specifically for the rear axle, with a distinction between the left and right side, which facilitates correct assembly and eliminates the risk of errors during installation.

Expanding BMW suspension upgrades

If you are planning a comprehensive repair or upgrade of the rear suspension area in your BMW and need other elements from the same group, such as additional springs, leaf springs, or related suspension components, check the available parts in the BMW Leaf and coil springs category.

If you are considering a wider car upgrade using aftermarket parts and want to better understand the specifics of used mechanical components, it is worth reading an expert guide describing facts and myths about parts from disassembly – you will find it in the article Why it is worth buying used gearboxes and engines – facts instead of myths.