BMW Z4 E89 Quarter Window Regulator Rear Right O/S Glass Motor Actuator 7046034

BMW Z4 E89 Quarter Window Regulator Rear Right O/S Glass Motor Actuator is a component from the Window regulators and motors group, designed for precise operation in the rear section of the vehicle body. It ensures stable window guidance, proper power transmission, and repeatable operation of the lifting and lowering mechanism. This solution is dedicated to BMW models where proper fitment with the factory door and roadster body construction is essential.

Specifications and technical data

• SKU: 7046034
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7046034
• Substitutable numbers: 7046034, 67627046034
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and vehicle placement

The presented window regulator actuator is intended for installation in the rear section of the vehicle, on the right side, in the BMW Z4 E89 model. Placement in this area requires appropriate guide geometry and alignment with the door structure and seals to ensure the window moves smoothly without excessive play or stress. As a result, the mechanism works in harmony with the factory window control system, maintaining the correct range of motion and positioning.

Technical and functional characteristics

The window regulator is responsible for converting the motor's rotational motion into the linear motion of the window, while maintaining appropriate speed and smoothness of operation. The design intended for the BMW Z4 E89 ensures:

• stable guidance of the glass pane within the rails,
• adequate system rigidity during frequent opening and closing,
• compatibility with the factory window comfort control system.

The component belongs to the Window regulators and motors group, meaning it is designed to operate in environments with varying temperatures, humidity, and mechanical loads typical for doors and side body panels. Using the correct regulator in this location reduces the risk of the window jamming, uneven closing, or overloading the electrical system.

Condition, origin, and benefits of use

The offered item is a used part, sourced from dismantling, which allows for maintaining the factory operating characteristics of the mechanism while optimizing repair costs. For vehicles such as the BMW Z4 E89, using an original regulator from the same model group often translates into better fitment than in the case of replacements of unknown origin. This solution is particularly beneficial for repairs where maintaining the correct door geometry and window-to-seal tightness is crucial.

Selecting the correct window regulator actuator allows you to:

• restore the proper operation of the electric window control,
• reduce noise resulting from improper closing,
• limit the risk of window damage due to operation on a jammed mechanism.

Installation tips and OEM selection

When replacing the regulator in a BMW Z4 E89, it is important to pay attention to the installation side and compatibility with the factory mounting system. It is recommended to compare the shape, mounting points, and electrical connectors with the removed part, as well as to verify compatibility by OEM number or interchangeable numbers. Such an approach minimizes the risk of installation problems and ensures proper cooperation with the vehicle's electrical system.

If you are interested in a broader context of using used parts in drivetrain repairs and want to better understand the principles of selecting components by OEM numbers, it is worth reading the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses practical procedures for identifying and verifying components based on manufacturer markings.

Expanding repairs within BMW window mechanisms

If you are planning a comprehensive repair or upgrade of the door and side window zone in your BMW and need other elements from the same group, such as guides, window motors, or complete window mechanisms, check the available parts in the BMW window regulators and motors category.