Mercedes W639 Headlight Washer Telescopic Nozzle Left Brilliant Silver - 9744

Mercedes W639 Headlight Washer Telescopic Nozzle Left Brilliant Silver - 9744 is a precision component of the headlight cleaning system, designed specifically for use on the left side of the vehicle. Maintaining proper cleanliness of the headlight lenses improves visibility and contributes to safe operation, while a properly selected nozzle from the Washer fluid reservoirs, pumps, and nozzles category ensures stable operation of the entire system. This used component in the original Brilliant Silver Metallic - 9744 color allows for an aesthetic match to the bodywork without the need for additional painting.

Specifications and technical data

• SKU: A6398600547-BRS1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398600547
• Substitutable numbers: A6398600547, A 639 860 05 47
• Location on the vehicle: Left
• Color: Brilliant Silver Metallic - 9744
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function of the headlight washer nozzle

The presented nozzle is a component intended for installation on the left side of the vehicle, within the headlight washer system. It is responsible for directing a stream of fluid onto the lens surface, which enables effective removal of dirt accumulated while driving in rain, mud, or on highways. A properly functioning nozzle supports even distribution of the fluid, which is particularly important for headlights with complex geometry.

The element works in conjunction with other system components – the reservoir, pump, and hoses – creating a cohesive system responsible for maintaining proper lighting clarity. This allows the driver to fully utilize the capabilities of the headlights, and the vehicle maintains the required performance parameters.

Brilliant Silver Metallic - 9744 color and visual matching

The nozzle is finished in the Brilliant Silver Metallic - 9744 shade, which allows for harmonious integration into the body line. For users who care about the stylistic consistency of the vehicle, this is both aesthetically and practically significant – the lack of need for additional painting shortens repair time and reduces service costs. The shade has been selected to maintain compliance with the factory color palette used in this model.

Placement on the left side of the vehicle means that the geometry and mounting method of the nozzle are adapted to a specific installation position. Proper side matching eliminates the risk of leaks, incorrect spray angles, or issues with the bumper elements closing properly.

Characteristics of the used component

The offered nozzle is a used component, which allows for an economical restoration of the headlight washer system's efficiency while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for post-accident repairs or servicing older vehicles, where a reasonable balance between cost and functionality is important. The used element retains a construction consistent with factory assumptions, which facilitates installation in place of the previous part.

Choosing an original nozzle from the secondary market reduces the risk of compatibility issues typical of replacements with inconsistent parameters. As a result, you can maintain predictable operation of the washer system and long-term stability.

Benefits of using a dedicated nozzle in the washer system

Using the correct nozzle on the left side of the vehicle brings a number of practical benefits:

• maintaining proper headlight cleaning efficiency in difficult road conditions,
• preserving a consistent body appearance thanks to the matched color,
• reducing installation time due to the design intended for a specific model,
• stable cooperation with the existing reservoir, pump, and fluid hose system.

For users planning long-term vehicle operation, choosing such an element allows for maintaining the functionality of the headlight washer system without the need for costly modifications.

Fluid system service expansion and diagnostics

When replacing the nozzle, it is worth paying attention to the general condition of the entire system, including hose tightness, pump efficiency, and fluid reservoir cleanliness. Proper diagnostics and selection of components according to manufacturer markings help avoid problems with spray pressure or uneven fluid distribution. For those interested in a broader view of issues related to selecting parts by manufacturer markings and the principles of operating fluid systems, an article describing the principles of diagnostics and component selection according to factory markings may be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the washer system area in your Mercedes and need other elements from the same group, such as fluid reservoirs, pumps, or additional nozzles, check the available parts in the Mercedes washer fluid reservoirs, pumps, and nozzles category.