Mercedes W212 Oil Cooler Hose Pipe Line Left N/S Side A6511804730

Mercedes W212 Oil Cooler Hose Pipe Line Left N/S Side is an original lubrication system component, designed to operate under demanding thermal conditions. Thanks to its factory-specified geometry and precise fitment for the specific Mercedes W212 platform, the hose ensures stable oil routing and proper integration with the oil cooler on the left side of the vehicle. This is a practical solution for users seeking a proven OEM component for professional repair or replacement.

Specifications and technical data

• SKU: A6511804730
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6511804730
• Substitutable numbers: A6511804730, A 651 180 47 30
• Location on the vehicle: Left
• Part type: Oil Cooler Hose
• Category: Engine Oil Coolers & Lines

Purpose and function in the oil cooling system

The left oil cooler hose in the Mercedes W212 is responsible for the controlled flow of oil between the engine and the heat exchanger. A correctly selected component from the Oil coolers and hoses category helps maintain a stable operating oil temperature, which translates into the longevity of the power unit and the operational safety of the entire lubrication system. The appropriate shaping of the hose and its dedicated placement on the left side of the vehicle minimize the risk of interference with other components and reduce stresses resulting from engine operation and body vibrations.

Construction and fitment for Mercedes W212

The hose has been designed specifically for the engine bay architecture of the Mercedes W212, which ensures:

• precise oil routing within the cooling system,
• compatibility with factory mounting points,
• appropriate bending radii, reducing local stresses,
• seamless integration with the oil cooler and other system components. Such fitment promotes the maintenance of leak-tightness and stable flow parameters, which is crucial during long-term operation under varied load conditions.

Benefits of using an original hose

Using an original oil cooler hose in the Mercedes W212 allows for reducing the risk of problems typical of imprecise aftermarket replacements. The most important advantages include:

• factory geometry – no modifications required during installation,
• predictable performance in terms of leak-tightness and temperature resistance,
• compatibility with the factory hose routing layout on the left side of the vehicle,
• easier diagnostics and future service due to the preservation of the original installation path. In the case of lubrication and oil cooling systems, choosing a component with known flow characteristics and proper material resistance has a direct impact on engine durability and operational stability.

Used OEM component – a practical approach to repair

Choosing a used oil cooler hose is a solution that allows for optimizing repair costs while maintaining the original manufacturer's specifications. In many cases, a factory hose from dismantling offers a better fit than a new aftermarket replacement with uncertain parameters. This is particularly important in vehicles where the oil cooling system operates under increased thermal load. If you want to better understand when choosing a used component makes technical sense in the context of oil leaks and lubrication system elements, it is worth checking out the practical tips contained in the article on car repairs using used auto parts. Additionally, when making a decision between a part from dismantling and an aftermarket replacement, the guide explaining why a used OEM part often turns out to be a better choice than a replacement may be helpful.

Expanding the oil cooling system in Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional oil hoses, oil coolers, or system connectors, check the available parts in the Mercedes oil coolers and hoses category.