Mercedes W204 Gearbox Oil Cooler Hose Right O/S M271 Automatic Transmission

Mercedes W204 Right Automatic Transmission Oil Line is an original part from the automatic transmission parts category, designed for the transmission system in Mercedes vehicles with a gasoline engine. Its precisely chosen right-side placement ensures proper oil flow in the automatic transmission and stable operation of the entire drivetrain.

Specifications and technical data

• SKU: A2042701996
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2042701996
• Substitutable numbers: A2042701996, A 204 270 19 96, BG
• Location on the vehicle: Right
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission Parts

Purpose and Function of the Oil Line

The transmission oil line in the Mercedes W204 model is responsible for transporting the lubricating and cooling medium between the components of the automatic transmission system. The right-side mounting is crucial for maintaining the correct oil line path, which translates to stable operating pressure and proper functioning of individual transmission sub-assemblies.

Thanks to its dedicated fit for automatic transmissions in gasoline-powered vehicles, the line integrates with the factory system without requiring modifications. Its appropriate geometry and connection ends minimize the risk of leaks and facilitate installation in the engine bay.

Application in Mercedes Vehicles with Automatic Transmission

This part has been designed for Mercedes vehicles equipped with an automatic transmission and a gasoline engine, where precise routing of oil lines on the right side of the vehicle is required. This fit ensures:

• proper oil circulation in the transmission,
• stable transmission operating conditions under varying loads,
• compatibility with the factory mounting points and brackets.

Choosing an original oil line dedicated to the Mercedes W204 reduces the risk of compatibility issues that can arise when using universal aftermarket replacements.

Technical Characteristics and Installation

This line belongs to the automatic transmission parts group, meaning it has been developed considering the specific requirements for pressure, temperature, and oil type used in Mercedes automatic transmissions. The line's construction is adapted for operation in a gasoline-powered system, where thermal distribution and operating loads differ from diesel units.

The right-side placement requires maintaining the correct routing of the line, therefore, during installation, it is important to use the factory mounting points. This helps to avoid chafing, excessive stress, and improper positioning relative to other components in the engine bay.

Condition of the Part and Benefits of Using a Used Part

The offered transmission oil line is a used part, sourced from disassembly, which represents a reasonable compromise between repair cost and maintaining the original manufacturer's specifications. For automatic transmission systems, using original disassembled components often helps maintain the integrity of the entire system and avoid problems arising from design differences in aftermarket parts.

When replacing the oil line, it is recommended to simultaneously check the tightness of connections and the condition of the transmission oil to fully utilize the potential of the newly installed part and minimize the risk of further service interventions.

Related Parts and Technical Knowledge

If you are looking for other Mercedes automatic transmission parts, check out our dedicated category: Mercedes automatic transmission parts. There you will find a wide selection of transmission system components, tailored for various models of this brand.

For drivers interested in a broader context of drivetrain operation and the impact of individual components on drivetrain durability, we recommend an article describing different four-wheel-drive solutions: xDrive, 4Matic, quattro or 4Motion – comparison of AWD systems from BMW, Mercedes, Audi and VW. This is a practical supplement to knowledge about the operation and servicing of advanced drivetrain systems.