BMW X1 U11 U12 Front Windscreen Washer Wiper Arm Right O/S 9478849

BMW X1 U11 U12 Front Windscreen Washer Wiper Arm Right O/S is an original component from the Wiper arms group, designed specifically for operation on the driver or passenger side depending on the steering wheel version. The precise mounting geometry and properly selected blade pressure ensure stable wiper operation on the windshield even at higher speeds, which translates into safe visibility in difficult weather conditions.

Specifications and technical data

• SKU: RHD-9478849
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9478849
• Substitutable numbers: 9478849, 61619478849
• Location on the vehicle: Front, Right
• Category: Wiper Arms

Purpose and fitment for BMW X1 U11/U12

The component has been constructed for the BMW X1 U11/U12 generation model and is intended for installation on the front windshield on the right side. The appropriate profiling of the arm guarantees the correct working angle of the blade relative to the windshield, which minimizes streaking and improves water drainage efficiency.

The original design of the arm allows for maintaining the factory operating characteristics of the wiper system – both in terms of range of motion and pressure force. As a result, the washer and wiper system works consistently, without the need for additional mechanical adjustments.

Construction and technical properties of the wiper arm

The wiper arm is a load-bearing element for the blade, transferring torque from the drive mechanism to the windshield surface. The construction features:

• a profile ensuring even blade pressure along the entire working length,
• a precise mounting socket for the wiper mechanism axis,
• integrated blade guidance points that limit its uncontrolled lifting from the windshield at higher speeds.

Such solutions promote stable system operation in rain, snow, and road debris, which has a direct impact on driving comfort and safety.

Benefits of using an original wiper arm

Using an original wiper arm in the BMW X1 U11/U12 allows for maintaining the factory parameters of the windshield cleaning system. Key advantages include:

• secure fitment to the mount – no play or unwanted vibrations during operation,
• properly selected length and geometry of the arm, which translates into an optimal windshield cleaning area,
• compatibility with factory wiper blades used in this model,
• maintaining proper cooperation with the wiper and washer mechanism.

Thanks to this, replacing a worn arm with an original component allows for restoring the correct operation of the system without the need to modify other components.

Condition of the component and service application

The wiper arm is offered as a used original BMW component, which is a reasonable compromise between repair cost and maintaining factory build quality. This type of part will work well both for standard replacement of a worn arm and for post-accident repairs when it is necessary to restore full functionality of the wiper system on the right side.

In practice, installation involves removing the old arm from the mechanism axis and seating the new one at the same point, while maintaining the correct resting position. A properly selected arm reduces the risk of the blade colliding with the windshield edges or the vehicle hood.

Expanding the wiper system in BMW

If you are planning a comprehensive repair or upgrade of the windshield area in your BMW and need other elements from the same group, such as additional arms, compatible blades, or related mounting elements, check the available parts in the BMW Wiper arms category.

Practical knowledge for BMW users

When planning service work on the wiper system, it is worth knowing the basic principles of selecting and operating components responsible for visibility. For those who want to better understand the impact of individual components on vehicle behavior and are thinking about further modifications, a guide on car tuning and upgrades may be helpful – you can find it in the article How to increase engine power: a practical guide to engine tuning with used parts, which organizes knowledge about the conscious use of used parts in the automotive industry.