BMW F90 M5 Washer Tank Fluid Cleaning Reservoir Container Bottle 8071739

BMW F90 M5 Washer Tank Fluid Cleaning Reservoir Container Bottle is an original windshield cleaning system component, designed for installation in the F90 generation BMW 5 Series sports sedan. This used reservoir ensures a factory fit, maintaining the correct mounting geometry and compatibility with the washer system, which facilitates efficient and technically correct replacement. It is a practical solution for post-collision repairs, replacing a damaged reservoir, or performing comprehensive maintenance on the washer system.

Specifications and technical data

• SKU: 8071739
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8071739
• Substitutable numbers: 8071739, 61668071739, KD
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The washer reservoir in the BMW F90 M5 is responsible for storing operating fluid for the windshield cleaning system, and depending on the vehicle configuration, also for the headlights. A correctly selected component guarantees:

• stable mounting in the body compartment,
• proper routing of ports and connections for pumps and hoses,
• adequate fluid capacity, matched to the characteristics of the M5 model.

By maintaining the original design, the reservoir works with factory pumps and nozzles, which minimizes the risk of leaks and issues with system venting.

Benefits of using an original BMW reservoir

Choosing an original BMW washer reservoir primarily ensures compatibility with the specific body version and equipment. In practice, this means:

• no need for modifications to mounts or electrical wiring,
• compliance with factory routing of hoses and harnesses,
• maintaining the original integrity of the washer system.

A used OEM component is particularly beneficial for post-accident repairs or servicing heavily used vehicles, where both technical correctness and reasonable parts costs are important.

Condition, verification, and installation

The offered reservoir comes from disassembly and is intended for reinstallation after a standard visual inspection for cracks, deformations, and the condition of connection ports. Before installation, it is recommended to:

• check the reservoir for leaks with a water test,
• evaluate the washer pump sockets,
• clean the interior of any residue from the old fluid.

A component prepared in this way allows for efficient installation in a workshop or service environment, while maintaining the factory geometry of the system.

Selection by part numbers and integration with other components

To ensure full compatibility with a specific BMW M5 F90 configuration, it is worth verifying part compatibility using manufacturer numbers or the vehicle's VIN. This facilitates matching the reservoir to existing pumps, hoses, and washer nozzles, as well as any additional systems if present in the car's specific configuration.

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

Technical support and service knowledge

When performing service work related to vehicle fluid systems – including selecting components by OEM or VIN numbers – specialized knowledge regarding diagnostics and component regeneration can be helpful. It is worth reading the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses best practices for selecting parts by number, service procedures, and approaches to component regeneration in modern vehicles.

If you are considering broader retrofitting or modifications to your BMW using disassembled parts, you will find useful information on planning such changes and optimally utilizing used components in the article Retrofitting in VAG and BMW group cars: How to affordably upgrade your car using used parts from higher versions?.