Audi A4 S4 RS4 B7 Front Door Window Regulator Left N/S 8H0837461

Audi A4 S4 RS4 B7 Front Door Window Regulator Left N/S is an original component from the Window regulators and motors group, designed for installation in the front left door. It ensures stable window guidance, proper cooperation with the lifting mechanism, and maintains the factory functionality of the driver's window control.

Specifications and technical data

• SKU: 8H0837461
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0837461
• Substitutable numbers: 8H0837461, 8H0 837 461, 8H0837461A, 8H0 837 461 A
• Location on the vehicle: Front, Left
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The window regulator in Audi A4, S4, and RS4 B7 generation models is responsible for the precise guidance of the window in the tracks and the transmission of power from the motor to the lifting mechanism. Its placement in the front, left side of the vehicle zone means it is a key element for driver comfort, especially in daily car use – when parking, using toll gates, car washes, or parking systems.

A well-chosen regulator minimizes the risk of the window jamming, tilting, or excessive load on the control motor, which translates into a longer service life for the entire system.

Construction and fitment for Audi A4 S4 RS4 B7

The presented regulator has been designed specifically for the geometry of the front left door in the B7 platform, maintaining factory mounting points and cable or arm guidance of the mechanism. Thanks to this, the installation proceeds in a predictable manner, without the need for bodywork modifications or interference with the door structure.

The main structural advantages include:

• factory fitment to the shape and dimensions of the driver's door,
• compatibility with the original window lifting motor,
• maintenance of the correct window operation geometry in seals and guides,
• possibility of installation in place of a worn or damaged component without additional adapters.

Benefits of using an original window regulator

Using an original window regulator in the Audi B7 allows for maintaining the consistency of the entire window control system. Proper fitment to factory mounts limits the risk of incorrect cable tension, excessive play, or noise during operation. This, in turn, affects the acoustic comfort of the interior and stable window closing at higher speeds.

Compared to replacements, the original component from the Window regulators and motors category works better with the vehicle's factory electronics, which reduces the risk of comfort errors, problems with the automatic closing function, or window position calibration.

Condition, verification, and service application

The item is offered as a used part, which allows for an economical repair of the window system while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial when servicing older Audi A4, S4, and RS4 B7 models, where a reasonable balance between repair cost and maintaining factory quality is important.

The regulator will work well both for a typical replacement of a worn mechanism and for post-accident repairs when it is necessary to rebuild the door structure along with the full functionality of the driver's window.

Integration with other window system components

The regulator works with other components of the window system – the motor, guides, seals, and comfort control. A properly selected and installed component allows for maintaining:

• smooth window operation throughout the full range of motion,
• proper window adhesion to the seals,
• stable operation of comfort functions (e.g., closing via remote, "one touch" function),
• reduction of mechanical stress in the entire system.

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

Part selection and expert knowledge

When selecting consumables and repair parts for Audi vehicles, it is worth relying on proven identification procedures based on catalog numbers and the specifications of a specific body version. In the case of more complex subassemblies – such as engines or gearboxes – correct compatibility verification is particularly important.

If you want to better understand what the professional process of selecting used powertrain components looks like, what the real cost benefits are, and what to pay attention to when buying, read the guide Why it is worth buying used gearboxes and engines – facts instead of myths. Although it mainly concerns powertrains, the principles of verification and the approach to used parts described there are also helpful when choosing other automotive components.