Tension Strut Wishbone BMW F20 F21 F30 F31 LCI Xdrive Front Left Control Arm

BMW F20 F21 F30 F31 LCI Xdrive Front Left Control Arm is a component from the Control Arms & Ball Joints category, designed for the front axle on the left side in BMW vehicles with xDrive. The original design ensures proper suspension geometry, stable handling, and predictable vehicle behavior in everyday use.

Specifications and technical data

• SKU: 6854727
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6854727
• Substitutable numbers: 31126854727, 6854727
• Location on the vehicle: Front, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Fitment for BMW

The presented control arm is designed for installation on the front axle, left side in BMW F20, F21, F30, and F31 models after the facelift (LCI) with xDrive. Thanks to its factory geometry and appropriately selected arm stiffness, the component works with other suspension components, maintaining correct wheel alignment and driving stability.

Its placement on the vehicle is clearly defined as front – left side, which simplifies part selection when replacing a single control arm or during comprehensive suspension servicing.

Technical Characteristics and Function in Suspension

The front control arm in BMW's multi-link suspension is responsible for:

• guiding the wheel in the horizontal and vertical planes,
• maintaining stable geometry during acceleration, braking, and cornering,
• transferring loads from the wheel hub to the body through flexible mounting points.

Appropriately selected structural stiffness and correct mounting point positions influence steering precision, braking effectiveness, and driving comfort. Using an original control arm allows for the preservation of factory driving characteristics, which is particularly important in vehicles with xDrive all-wheel drive.

Condition of the Component and Benefits of Choosing a Used BMW Control Arm

The offered control arm is in used condition, providing an attractive cost-effective alternative to new components while maintaining the original manufacturer's specifications. Choosing this solution is particularly beneficial in cases of:

• post-accident repairs, where structural compatibility with the factory suspension is crucial,
• restoring the functionality of a vehicle used intensively in urban conditions,
• reducing service costs while using genuine BMW components.

By using an original control arm, the risk of wheel alignment issues, uneven tire wear, or undesirable body vibrations can be reduced.

Why Choose Original BMW Control Arms

Compared to aftermarket alternatives, genuine BMW control arms offer:

• precise fitment for a specific suspension generation and xDrive system,
• preservation of the manufacturer's designed handling characteristics,
• compatibility with other system components, such as ball joints or rubber-metal bushings.

Using original components in critical suspension points translates to predictable vehicle behavior, which directly impacts user safety and comfort.

Related Products and Technical Knowledge

If you are looking for other BMW Control Arms & Ball Joints for your car, check out our dedicated category: BMW Control Arms & Ball Joints. There you will find a wide selection of suspension components tailored for various series and generations.

To better understand the role of control arms in the drivetrain and the signs of their wear, it is worth reading the technical guide: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. The article helps assess the suspension's condition and plan appropriate diagnostics and repairs.