BMW 3 Series E90 E91 Electrochromic Auto Dip Left N/S Mirror Glass Wide Angle

The BMW 3 E90/E91 Left Electrochromic Mirror Glass is an original component designed for the factory driver's side wing mirror. With its automatic dimming function and wide-angle profile, it ensures high image clarity and improved safety during night driving and in heavy traffic. A used OEM component is a sensible choice for drivers who want to maintain the technical consistency of the mirror system in their BMW.

Specifications and technical data

• SKU: 7144303-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7144303
• Substitutable numbers: 7144303, 51167144303, Heated
• Location on the vehicle: Left
• Category: Mirror Glass

Technical Characteristics of Mirror Glass

The presented mirror glass belongs to the Mirror Glass category and is dedicated to the left exterior mirror of the BMW 3 Series E90/E91 generation. The electrochromic construction works with the vehicle's factory installation, enabling automatic dimming of the surface in response to intense light from vehicles behind. The wide-angle profile of the glass reduces the blind spot on the driver's side, facilitating lane changes and maneuvering in urban traffic.

The component has been designed as part of the OEM BMW system, ensuring correct optical curvatures, geometry, and compatibility with the factory mirror mounting and adjustment system. This is particularly important for electrochromic mirrors, where proper interaction with the vehicle's sensors and electronics affects the stability of the entire system's operation.

Electrochromic Function and Driving Comfort

Electrochromic mirror glass automatically reduces the intensity of reflected light, which minimizes the glare effect from vehicles behind. In practice, this translates to:

• better visibility of the situation in adjacent and rear lanes,
• reduced eye strain during longer journeys,
• stable image contrast in varying lighting conditions.

Additionally, the wide-angle nature of the glass improves control over the area next to the vehicle, which is particularly useful when overtaking, merging into traffic, or parallel parking. The combination of electrochromism and a wide field of view makes the mirror a better support for the driver in the daily operation of the car.

Fitment for BMW 3 Series E90/E91

The glass has been prepared for installation in the left exterior mirror of the BMW 3 Series E90/E91, meaning it retains the correct shape, dimensions, and mounting method. This allows for installation in place of worn or damaged glass without the need for modifications to the mirror housing or electrical system. Using a used OEM part helps maintain the vehicle's consistent appearance and compliance with the manufacturer's factory solutions.

Choosing original mirror glass with electrochromic function is particularly important for cars equipped with advanced comfort and safety systems, where the quality of the image in the side mirrors directly impacts the confidence of maneuvers and the predictability of the vehicle's behavior in traffic.

Condition, Origin, and Benefits of Using an OEM Component

The offered mirror glass is a used component, originating from original BMW equipment. Such OEM components are designed for long-term operation, and their optical and mechanical parameters are tailored to the specific requirements of the given model. Using original glass instead of a cheaper aftermarket alternative helps maintain the predictable operation of the electrochromic function and the correct image quality in the mirror.

If you are planning a comprehensive repair or upgrade of the side visibility area in your BMW and need other parts from the same group, such as additional glass panes, inserts, or adjustment modules, check the available parts in the BMW Mirror Glass category.

Practical Installation and Operation Tips

When replacing mirror glass, it is advisable to pay attention to its correct seating in the mount and to handle the electrochromic surface gently to avoid damaging the layer responsible for dimming. It is also recommended to check the proper functioning of the mirror adjustment after installation to ensure that the new component works correctly with the positioning mechanism and the vehicle's control system.

For drivers interested in a broader context of selecting used OEM components for vehicle systems, including powertrains, an article describing the advantages of using original aftermarket components may be helpful: Whining differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement.