BMW F74 Gran Coupé Rear Window Lifter Regulator Motor Right O/S 5A35984

BMW F74 Gran Coupé Rear Window Lifter Regulator Motor Right O/S is a precision component from the Window Regulators and Motors group, designed for operating the rear right window in BMW vehicles. It ensures stable operation of the window lifting and lowering mechanism, which translates into user convenience and proper window closing during daily use. This is a solution for users who expect a proven design and compatibility with the factory electrical system.

Specifications and technical data

• SKU: 5A35984
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A35984
• Substitutable numbers: G49238-101, G49238101, 5A35984, G37346-102, 51355A638E2, 5A638E2
• Location on the vehicle: Rear, Right
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The rear right window lifter motor is responsible for driving the mechanism that controls the window movement in the rear passenger-side door. This component works with the vehicle's electrical system and the controls from the driver's panel or the door button, enabling smooth adjustment of the window position. The vehicle placement defined as rear – right side allows for clear identification of where this component is intended to be installed in the bodywork. This minimizes the risk of errors when selecting parts and speeds up the service process.

Compatibility and replacement numbers

The presented motor belongs to the group of BMW OEM components, which means it maintains factory operating parameters and mechanical fitment. The part has an assigned manufacturer number and a set of interchangeable numbers that facilitate verification of compatibility with a specific body version and equipment level. Thanks to the presence of reference numbers, it is possible to precisely compare it with the currently installed unit, as well as with service documentation. This is particularly important when selecting parts from the secondary market, where both proper fitment and maintaining the full functionality of the window lifting system are crucial.

Performance characteristics and advantages of use

The rear right window lifter motor in a BMW has been designed for stable operation in varying operating conditions. The appropriate torque characteristics ensure:

• smooth window lifting and lowering without jerking,
• compatibility with factory guides and cable or gear mechanisms,
• proper window closing when controlled via remote or central locking (if the function is available in the given vehicle). Using an original solution from the Window Regulators and Motors group reduces the risk of improper fitment, excessive operating noise, or overloading the electrical system. This is especially important in vehicles where maintaining factory acoustic comfort and ergonomics is a priority.

Product condition and service application

The offered item is a used part, which allows for an economical repair of the window system while maintaining the original BMW design. Such components are frequently chosen in situations where the existing motor has worn out, overheated, or suffered mechanical damage, and the priority is to restore full functionality without the need for a costly replacement of the entire door mechanism. The rear right window lifter motor will prove useful both in routine repairs and during comprehensive door renovation, where seals, guides, or wiring harnesses are also being replaced. Maintaining compatibility with the factory control system facilitates installation and limits the need for additional modifications.

BMW Window Regulators and Motors – expansion and service

If you are planning a comprehensive repair or modernization of the door and window area in your BMW and need other elements from the same group, such as front window drives, guide mechanisms, or additional adjustment motors, check the available parts in the BMW Window Regulators and Motors category.

Technical knowledge and selection of dismantled parts

When working with electrical systems and drives in modern cars, it is worth relying on proven sources of knowledge regarding motors, their typical faults, and repair possibilities using dismantled parts. In the context of the VAG group, but also as a reference point for service practices, an article discussing the design and operational differences of power units may be helpful – you can find it here: VAG group engines – a comparison of popular TSI and TDI engines and repair possibilities using original dismantled parts. A better understanding of the principles for selecting used components allows for informed choices, including parts such as window lifter motors.