BMW G20 G21 G28 G80 G81 Rear Door Window Regulator Motor Left N/S 5A607F3

The BMW G20 G21 G28 G80 G81 Rear Left Window Regulator Motor is an original part from the Window Regulators and Motors group, designed for precise operation of the rear left window in modern BMW 3 Series and M3 models. It ensures stable operation of the window lifting and lowering mechanism, maintaining factory comfort and safety parameters.

Specifications and technical data

• SKU: 5A607F3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A5C897
• Substitutable numbers: 5A607F3, 5A5C897, 61355A5C897, 8495867, 51358495867
• Location on the vehicle: Rear, Left
• Part type: Window Motor
• Category: Window Motors & Regulators

Vehicle Application and Function

The window regulator motor is intended for installation in the rear left section of the body, where it drives the door window mechanism. The component works with the factory BMW electrical system, allowing for smooth window control from the driver's panel and from the button in the rear door.

As a dedicated component for specific generations of BMW 3 Series and M3, it retains the correct mounting points and alignment with the original wiring harness, which simplifies installation and reduces the risk of system malfunction.

Benefits of Using an Original Motor

Using an original window regulator motor in a BMW allows for consistency with the factory comfort control system. In practice, this means:

• correct cooperation with comfort modules and anti-pinch protection,
• appropriate window operating speed, without jerks or unwanted delays,
• maintenance of the correct rotation direction and drive torque for the regulator mechanism.

This ensures predictable window operation for the driver and passengers, in line with factory BMW settings, which is important for both comfort and the durability of the entire door mechanism.

Installation Characteristics

The motor is prepared for operation in the Rear, Left position, eliminating the need for user-side adaptation or modification of mountings. The design is intended to work with the original window regulator, so installation involves:

• mechanical fastening at the factory mounting points,
• connection to the existing wiring harness,
• checking for correct operation via the window switches.

This solution reduces service time and minimizes the risk of compatibility issues, which is particularly important in modern BMW models where comfort systems are integrated with the vehicle's electronics.

Condition and Service Application

This part is from the used BMW parts group, making it an attractive cost-effective alternative to new components, while retaining the original manufacturer's construction. This type of motor is suitable for both typical repairs of a faulty regulator and for preventive replacement in case of symptoms such as slow window operation or occasional stops.

Choosing an original window regulator motor is particularly beneficial for vehicles where maintaining the factory functionality of the comfort system and compatibility with other electrical system components is important.

BMW Window Regulators and Motors – Expansion and Service

If you are planning a comprehensive repair or upgrade of the door and window area in your BMW and need other parts from the same group, such as window drives, regulator mechanisms, or control modules, check the available parts in the BMW Window Regulators and Motors category.

Technical Support and BMW Knowledge

When performing service work on modern BMW models, it is advisable to be aware of common weak points in powertrains and accessories to better plan vehicle operating costs. A practical guide to problematic engines, available in the article Troublesome BMW E90 Engines: Find Out What Can Ruin Your Budget!, can be helpful in better understanding the specifics of BMW construction and making informed service decisions.