BMW 1 X1 Series E81 E84 E87 Rear Window Wiper Arm 7138507

BMW 1 X1 Series E81 E84 E87 Rear Window Wiper Arm is an original component from the Wiper Arms category, designed for installation on the rear window in selected BMW 1 Series and X1 models. This used OEM part ensures proper wiper geometry, stable mounting, and compatibility with the factory mechanism.

Specifications and technical data

• SKU: 7138507
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7138507
• Substitutable numbers: 61627138507, 7138507
• Location on the vehicle: Rear
• Category: Wiper Arms

Purpose and function of the BMW rear wiper arm

The rear wiper arm in BMW E81, E84, and E87 models is responsible for precisely guiding the blade across the glass surface, which translates into clear visibility in difficult weather conditions. This component works in axis with the factory wiper motor, ensuring proper blade pressure, even force distribution, and stable operation across the full range of motion.

Thanks to the original design, the arm works with the stock mounting and mechanism, which facilitates installation and reduces the risk of incorrect wiper angle adjustment. This is a practical solution for users who want to restore the proper operation of the rear wiper without modifying the system.

Construction and fitment for BMW E81, E84, E87

The arm has been designed specifically for BMW 1 Series bodies and the compact BMW X1 SUV, taking into account the shape of the rear window and the wiper's range of motion. The properly selected length and profile of the arm allow for effective removal of water and debris from the driver's key visibility zone.

The placement on the vehicle defined as Rear means that the component is intended exclusively for the rear window and should be used in this specific area of the vehicle. Using an original arm minimizes the risk of collision with seals, the spoiler, or other body elements.

Benefits of using an original wiper arm

Using an original BMW rear wiper arm brings a number of practical benefits:

• preservation of the factory operating characteristics of the rear window wiper,
• secure mounting to the drive axle and stable operation in the full range of motion,
• compatibility with the stock wiper blade,
• reduction of vibrations and noise during operation compared to generic replacements.

For users who expect predictable performance and proper cooperation with the existing mechanism, choosing an original arm is a particularly advantageous solution.

Part condition and practical application

The offered arm belongs to the group of used parts, which allows for an economical replacement of the component while maintaining the original BMW specification. This is a good solution in situations where the existing arm is mechanically damaged, corroded, or no longer provides proper blade pressure to the glass.

Replacing the rear wiper arm is one of the simpler service procedures, and using an OEM component limits the need for additional adjustments. Thanks to this, you can quickly restore efficient rear window cleaning, which is important both in daily city driving and during longer trips in rain or snow.

Related BMW Wiper Arms and preparing the car for the season

If you are planning a comprehensive repair or upgrade of the glass and wiper area in your BMW and need other components from the same group, such as additional arms, mounts, or compatible blade holders, check the available parts in the BMW Wiper Arms category.

While working on the wiper system, it is worth taking care of preparing the car for more difficult weather conditions. Practical tips on which used wiper system, lighting, or suspension components are worth checking before the low-temperature period can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?.