BMW i3 I01 Washer Bottle Filler Windscreen Tank Reservoir 7304020

BMW i3 I01 Washer Bottle Filler Windscreen Tank Reservoir is an original washer system component, designed specifically for the BMW i3 I01 generation architecture. This used part from the Washer fluid reservoirs, pumps, and nozzles category allows for the restoration of proper windscreen washer system operation, ensuring a stable supply of operating fluid to the pumps and nozzles. It is a solution for users who expect factory-fit and predictable installation in their BMW.

Specifications and technical data

• SKU: 7381592-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7381592
• Substitutable numbers: 61667381592, 7381592
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The presented washer bottle filler is a component responsible for storing fluid and supplying it steadily to the pumps and nozzles. In the BMW i3 I01 design, it plays a key role in maintaining windscreen visibility, which directly impacts driving safety in rain, snow, or when driving on dirty roads.

Thanks to the factory design for BMW, the geometry of the reservoir is matched to the mounting compartment, which facilitates proper hose routing, secure fastening, and correct positioning of the washer system supply ports.

Construction and fitment for the BMW i3 I01

The original washer bottle filler for the BMW i3 I01 has been designed with the specific architecture of the body and front compartment of this model in mind. The shape of the body, the arrangement of the mounts, and the position of the connection ports are adapted to the factory mounting points, which reduces the risk of stress and leaks.

Such fitment translates into:

• stable seating of the reservoir in the body,
• proper routing of the washer fluid hoses,
• easier service access when refilling fluid or checking the system.

For the user, this means installation in accordance with the manufacturer's specifications, without the need for modifications or the use of additional adapters.

Benefits of using an original BMW reservoir

Using an original washer system component in the BMW i3 I01 ensures consistency with the other system components. Factory fitment minimizes the risk of leaks, air in the lines, or improper fluid suction by the pump. This is particularly important in vehicles used year-round, where the washer system operates across a wide temperature range.

The main advantages of using this part include:

• maintaining the original geometry of the washer system,
• compatibility with factory mounts and equipment,
• reducing the risk of improper installation compared to aftermarket replacements.

For workshops and users, this means predictable labor time, fewer corrections, and greater confidence in the system's operation after the repair is completed.

Part condition and service application

The offered washer bottle filler is a used component, which allows for an economical repair of the system while maintaining the original BMW specification. This type of component is particularly useful in situations where there has been mechanical damage to the reservoir, a cracked housing, or leaks resulting from wear and tear.

Replacing the reservoir is recommended, among other things, when:

• visible cracks or material loss are detected,
• the system loses fluid despite functional hoses and nozzles,
• the reservoir has been damaged as a result of a collision or mechanical interference.

Choosing an original component allows for maintaining consistency with the other washer system parts, which is important for the long-term operation of the vehicle.

Selection support and additional materials

Proper selection of operating fluid system components, including reservoirs, pumps, and hoses, often requires analysis of manufacturer markings and the configuration of a specific vehicle. In the context of other sub-assemblies, such as the engine fuel system, technical materials discussing diagnostics and part selection based on manufacturer markings may be helpful – this topic is described in more detail in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which shows an approach to component identification using another vehicle system as an example.

If you are planning a comprehensive repair or upgrade of the front area in your BMW and need other elements 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.