Mercedes SLK R172 M276 Automatic Gearbox Oil Cooler Line Pipe A1722700427

The Mercedes SLK R172 M276 Transmission Oil Cooler Line Hose is a specialized component of the automatic transmission lubrication system, designed for Mercedes models from the SLK R172 series with the M276 engine. It is responsible for the secure and controlled routing of transmission oil, which directly impacts the stable operation of the automatic transmission and the durability of the entire powertrain. Thanks to its precise OEM construction, the hose ensures proper oil circulation between the transmission and the cooling system components.

Specifications and technical data

• SKU: A1722700427
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1722700427
• Substitutable numbers: A1722700427, A 172 270 04 27, A1722700996, A 172 270 09 96
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Application and Function in the Powertrain

The transmission oil line in the Mercedes SLK R172 with the M276 engine operates in a demanding environment of high temperatures and pressure. Its task is to transport transmission oil between the automatic transmission and components within the Oil Coolers and Hoses group, which stabilizes the transmission's operating temperature and reduces the risk of overheating.

A correctly selected oil line:

• ensures proper oil flow in the automatic transmission,
• maintains the lubrication system's seal under load,
• supports uniform cooling of the transmission oil,
• reduces wear on the transmission's internal components.

Construction and Fitment for Mercedes SLK R172 M276

The offered hose has been designed as an original component for the automatic transmission system in the Mercedes SLK R172 with the M276 unit. This means proper routing of the oil line relative to the body and sub-assemblies, as well as matched connection ends for the factory ports in the transmission and the oil cooling system.

This ensures an organized installation process, without the need for modifications or custom fabrication of mounting points. Maintaining the original hose geometry also promotes stable operation of the oil cooling system and minimizes the risk of vibrations or chafing during use.

Benefits of Using an Original Oil Line

In an automatic transmission, the quality of the oil line directly affects the transmission's operational smoothness. Using an OEM component for Mercedes allows you to:

• maintain oil pressure parameters in line with manufacturer specifications,
• ensure compatibility with the factory oil cooling system,
• reduce the risk of leaks and drips at critical connection points,
• limit the thermal load on the automatic transmission.

This is particularly important in sporty vehicles like the SLK R172, where the automatic transmission often operates under higher loads. Maintaining a functional oil line helps preserve smooth gear changes and transmission stability in the long term.

Condition, Origin, and Service Application

The hose is a used part, removed from a vehicle, and offered as a used component. This represents a reasonable compromise between repair cost and maintaining original manufacturer specifications. This type of part is suitable for both standard replacement of a damaged hose and for comprehensive servicing of the automatic transmission lubrication system in the Mercedes SLK R172 M276.

Selecting a hose that matches the factory part number and interchangeable numbers simplifies workshop operations and minimizes the risk of installation errors. This is a particularly beneficial solution for workshops specializing in the Mercedes brand, which expect predictable fitment and repeatable repair results.

If you are planning a comprehensive repair or upgrade of the automatic transmission lubrication and cooling system in your Mercedes and need other components from the same group, such as oil lines, oil coolers, or oil line connectors, check the available parts in the Mercedes Oil Coolers and Hoses category.

Operation in High Temperatures and Additional Materials

The transmission oil cooling system operates at elevated temperatures during hot summer weather, which increases the demands on oil lines and connections. It is important to ensure the condition of the entire system to avoid transmission overheating and reduced oil lifespan. More practical information on the impact of high temperatures on the cooling system and ways to operate economically using used components can be found in the article “Summer Heat vs. Cooling System: Used Coolers and Fans Guarantee Savings”.

Summary

The Mercedes SLK R172 M276 Transmission Oil Cooler Line Hose is a functional component of the automatic transmission lubrication and cooling system, dedicated to a specific SLK model configuration. Using an original hose helps maintain proper oil flow, supports stable transmission operating temperatures, and contributes to the long-term, predictable operation of the vehicle. It is a practical choice for owners and workshops that prioritize technically correct, factory-compliant service solutions.