BMW F01 F10 F11 A/C Coolant Line Filler Neck Suction Pipe 9120009

BMW F01 F10 F11 A/C Coolant Line Filler Neck Suction Pipe is an original BMW air conditioning system component, designed for operation in the refrigerant circuit on the suction side. This used part from the Lines, hoses and pipes category allows for a technical, cost-effective, and factory-compliant repair of your vehicle's air conditioning system.

Specifications and technical data

• SKU: 9359041
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9359041
• Substitutable numbers: 64539359041, 64534524894, 64539251509, 64539120009, 9359041, 4524894, 9251509, 9120009
• Part type: Pipe
• Category: Hoses, Lines & Pipes

Technical characteristics of the A/C coolant line

The presented A/C suction pipe is a component designed for operation in the low-pressure part of the circuit, where tightness, vibration resistance, and dimensional stability are crucial. The integrated filler neck enables a secure, repeatable connection with other system components, minimizing the risk of leaks and drops in air conditioning performance. Thanks to its OEM-compliant design, the line maintains the correct routing geometry in the engine bay, which reduces stress, friction against adjacent components, and potential damage during long-term operation. This solution is particularly important in BMW F-series vehicles, where the air conditioning system operates under demanding temperature conditions.

Purpose and role in the BMW air conditioning system

The A/C suction pipe is responsible for transporting the refrigerant in its gaseous phase from the evaporator towards the compressor. A properly selected and functional line:

• ensures stable operating pressure on the suction side,
• reduces refrigerant and compressor oil losses,
• supports the smooth operation of the compressor and the entire system,
• allows for maintaining cabin cooling efficiency at factory levels. By using an original A/C line with a filler neck, you avoid problems typical of aftermarket replacements with imprecise dimensions, such as installation difficulties, stress on connections, or accelerated seal wear.

Benefits of using an original BMW line

Choosing a used, original A/C line for a BMW F-series is a solution that combines technical and economic aspects. The most important advantages include:

• Factory fit – geometry, diameters, and mounting points consistent with the vehicle manufacturer's design.
• Stable system operation – maintaining proper refrigerant flow and reducing the risk of air ingress or performance drops.
• Repair cost savings – the ability to restore air conditioning functionality without the need to purchase a new part.
• Compatibility with factory connectors – the integrated filler neck works with original system components, which facilitates installation. For workshops and individual users, this means faster repair completion, a lower risk of complaints, and maintaining air conditioning performance parameters close to factory specifications.

Condition, verification, and preparation for installation

The item is offered as a used part, which in practice means it has been removed from a vehicle and verified for further use. The line is intended for reinstallation after performing standard service procedures, such as checking the tightness of the entire system, replacing seals at connection points, and proper refrigerant refilling. Before installation, it is recommended that the air conditioning system be checked by a qualified service center, which will assess the condition of the compressor, condenser, evaporator, and other lines. This approach helps avoid secondary failures and ensures longer, trouble-free operation of the entire system.

Selection support and additional technical information

The offered line belongs to the Lines, hoses and pipes group, which facilitates its identification in parts catalogs and integration with other air conditioning system components. If necessary, you can refer to the OEM part number and interchangeable numbers visible in the technical specifications section – these are the basis for selection for a specific vehicle configuration. If you are planning a comprehensive repair or upgrade of your BMW's air conditioning system and need other components from the same group, such as flexible low-pressure hoses, rigid high-pressure pipes, or connecting sections to the dryer, check the available parts in the BMW Lines, hoses and pipes category. For a better understanding of the relationship between the air conditioning system and the engine operating temperature, it is also worth reading the guide material on engine cooling, available in the article Engine cooling system – overheating, repair, and used radiators. This will allow for a comprehensive approach to vehicle thermal management and help optimize your service plan.