Volkswagen New Beetle Cabrio Rear Right O/S Window Lifter Regulator 5C3959812C

Volkswagen New Beetle Cabrio Rear Right O/S Window Lifter Regulator is an original component from the Window regulators and motors group, designed for precise operation of the side window in the rear right part of the body. It ensures stable window guidance, proper cooperation with the control mechanism, and maintains the factory functionality of the convertible roof.

Specifications and technical data

• SKU: 5C3959812C
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5C3959812C
• Substitutable numbers: 5C3959812C, 5C3 959 812 C, 430092D0
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented Volkswagen New Beetle Cabrio Rear Right O/S Window Lifter Regulator is responsible for the smooth raising and lowering of the side window in the rear part of the body on the passenger side. A properly functioning mechanism is crucial for:

• maintaining cabin tightness when the roof is closed,
• proper window closing during roof folding and unfolding,
• stable window guidance without jamming or play,
• comfortable operation of the electric window control.

The vehicle placement defined as rear – right side allows for unambiguous identification of the part during selection and repair planning.

Construction and fitment for Volkswagen New Beetle Cabrio

The regulator has been designed specifically for the geometry of the doors and guides in the convertible version, ensuring the correct window line relative to the seals and roof frame. The construction provided by the vehicle manufacturer ensures:

• factory mounting points in the rear right part of the body,
• compatibility with the original window control motor,
• proper cooperation with factory wiring and comfort control.

Thanks to this, the installation proceeds in an orderly manner, without the need for structural modifications or the adaptation of universal solutions.

Condition, origin, and benefits of choosing a used part

The item comes from the Volkswagen group and is classified as a used window regulator, which means it was previously used in a vehicle but retains the functionality required for further operation. Choosing an original, used component from this category is a reasonable compromise between cost and maintaining the factory standard of workmanship.

If you are considering purchasing used components for your car and want to better understand the differences between new and used parts, selection procedures by OEM numbers, and real savings, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The principles of selection by reference numbers and VIN contained therein can be analogously applied to the selection of other components, including window system elements.

Practical installation and maintenance tips

To fully utilize the potential of this regulator, it is worth paying attention to a few technical aspects during installation:

• checking the condition of the guides and seals in the rear right part of the body,
• proper adjustment of the window relative to the roof and pillars,
• checking the operation of the mechanism in the full range of motion before finally tightening the upholstery.

Careful installation translates into stable window operation, reduction of wind noise at higher speeds, and correct closing when operating the convertible roof.

Repair expansion – Volkswagen Window regulators and motors group

If you are planning a comprehensive repair or upgrade of the side window area in your Volkswagen and need other elements from the same group, such as guides, lifting mechanisms, or control drives, check the available parts in the Volkswagen Window regulators and motors category.