Mercedes W207 W212 M276 A/C Air Con Conditioning Hose Pipe Line A2078303915

Mercedes W207 W212 M276 A/C Air Con Conditioning Hose Pipe Line is an original cabin cooling system component, designed for models from the Mercedes W207 and W212 family with the M276 engine. Thanks to its factory geometry and precise fit for the air conditioning installation, it ensures stable refrigerant pressure, connection tightness, and predictable operation of the entire system. This is a solution for users looking for parts consistent with the manufacturer's factory standards.

Specifications and technical data

• SKU: A2078303915
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2078303915
• Substitutable numbers: A2078303915, A 207 830 39 15
• Part type: Hose
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

The air conditioning hose in this model is responsible for the safe transport of refrigerant between system components, such as the compressor, condenser, or evaporator. A properly selected hose minimizes pressure drops, reduces the risk of leaks, and allows for maintaining proper cooling efficiency in both urban and highway driving conditions. The component belongs to the Air conditioning hoses, pipes, and connectors group, which means it is designed to work under variable pressure, across a wide temperature range, and in the immediate vicinity of other engine compartment components.

Construction, fitment, and installation

The discussed air conditioning hose has been constructed with a specific installation routing in mind for Mercedes W207 and W212 series vehicles with the M276 engine. Properly selected diameters, shape, and connector placement allow for installation in existing mounting points without the need for system modifications. Key design advantages:

• factory geometry matched to the installation routing in the engine compartment,
• connectors prepared for use with original seals and mounts,
• adapted for operation in air conditioning systems using the refrigerant specified for this generation of Mercedes vehicles. As a result, the hose can be integrated into the system following standard service procedures: removal of the old component, inspection of ports and seals, installation of the hose, leak testing, and system recharging.

Benefits of using an original Mercedes hose

Choosing an air conditioning hose from the Mercedes brand allows you to maintain consistency with the vehicle's factory specifications. An original component from this group ensures:

• compatibility with the air conditioning system in W207 and W212 models with the M276 engine,
• adequate resistance to vibrations and thermal loads in the engine compartment,
• easier diagnostics and future service thanks to the preservation of the factory installation routing. This is particularly important in air conditioning systems, where tightness and stable refrigerant pressure directly translate into driving comfort and the durability of the compressor, condenser, and other components.

Condition, verification, and practical service application

The component comes from the used parts segment, which allows for economical air conditioning system repair while maintaining the manufacturer's original specifications. In workshop practice, such a hose is often chosen as a solution to restore system functionality after mechanical damage or connection corrosion. Before installation, a standard service procedure is recommended: inspection of sealing surfaces, checking the condition of connection ports, and performing a leak test after assembling the system. This ensures the hose can operate in the installation for a long time without the need for additional intervention.

System expansion and selection of other components

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your Mercedes and need other components from the same group, such as additional lines, flexible hoses, or service connectors, check the available parts in the Mercedes air conditioning hoses, pipes, and connectors category. To better understand the impact of individual components on cooling efficiency and to consciously decide which system parts are worth replacing at the same time as the hose, read our guide: No cooling in the car: original used A/C compressor as a proven alternative to expensive new parts. If you want to optimize the parts ordering process and have them delivered directly to your service center, you may also find our practical material on organizing online purchases helpful: Repairing your car from home: how to order used parts online directly to the workshop?.