Mercedes R171 Automatic Gearbox Cooler Oil Return Line M272 Petrol A1712703096

Mercedes R171 Automatic Gearbox Cooler Oil Return Line M272 Petrol is a specialized drivetrain component designed for use with automatic transmissions in petrol-engine vehicles. It is responsible for the stable flow of operating oil, which directly impacts the performance, durability, and operational safety of the automatic transmission. By maintaining factory geometry and flow diameters, the line ensures proper lubrication and cooling conditions for the gearbox.

Specifications and technical data

• SKU: A1712703096
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1712703096
• Substitutable numbers: A1712703096, A 171 270 30 96
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission Parts

Purpose and function in the drivetrain

The oil line in an automatic transmission plays a key role in the ATF circuit, connecting individual sections of the hydraulic system. In the case of M272 petrol units in Mercedes R171 models, it is responsible for:

• maintaining stable oil pressure in the automatic transmission,
• ensuring proper flow of the operating medium to control and actuator elements,
• working with the transmission oil cooling system, which reduces the risk of overheating,
• reducing vibrations and stress thanks to its matched length and shape.

A properly selected oil line minimizes the risk of leaks, pressure drops, and incorrect gear shifting, which translates into stable and predictable operation of the automatic transmission.

Compatibility with the automatic transmission

The component has been designed to work with the automatic transmission in Mercedes vehicles equipped with a petrol engine. This means maintaining appropriate flow parameters, resistance to operating oil temperatures, and compatibility with factory mounting points on the body and the transmission housing.

Thanks to a design consistent with the manufacturer's solutions, the line supports:

• proper operation of the hydraulic control system,
• maintaining the correct oil temperature in both city and highway driving conditions,
• reducing the risk of cavitation and pressure drops in critical points of the system.

Product characteristics and condition

The line belongs to the Automatic transmission parts group, which means it is a component closely related to driving safety and comfort. The product is offered in used condition, which allows for an economical repair or replacement of a damaged section of the oil system while maintaining the original design specifications.

The original Mercedes origin promotes the maintenance of factory fitment and also reduces the risk of assembly problems typical of imprecise replacements. This is a particularly beneficial solution when servicing vehicles where maintaining the consistency of the components used is important.

Benefits of using an original oil line

Using an oil line dedicated to a specific drivetrain configuration brings a number of practical service and operational benefits:

• maintaining proper oil circulation in the automatic transmission,
• reducing the risk of leaks thanks to matched connectors and diameters,
• stable transmission operation across a wide temperature range,
• easier diagnostics of potential hydraulic system faults.

For workshops specializing in the service of automatic transmissions in Mercedes vehicles, the gearbox oil line for the M272 unit is a practical solution for post-collision repairs, oil cooler replacements, or damaged sections of the installation.

Selection by OEM numbers and safe online purchasing

When selecting an oil line for an automatic transmission in a Mercedes, it is crucial to compare the OEM part number and interchangeable numbers with the vehicle documentation or data from the manufacturer's catalog. This allows you to avoid problems with assembly and discrepancies in the diameter or shape of the line. In the case of online purchases, it is particularly important to verify compatibility with the specific petrol engine version and automatic transmission type.

To better understand how to safely select components by OEM numbers and avoid mistakes when ordering online, it is worth reading this practical guide: Safe online parts shopping – 5 proven ways to verify component compatibility using OEM numbers and paint codes. The article discusses, among other things, the specifics of verifying parts for Mercedes vehicles, which facilitates the correct selection of drivetrain elements.

Expanding Mercedes automatic transmission service

If you are planning a comprehensive repair or upgrade of the automatic transmission area in your Mercedes and need other elements from the same group, such as oil lines, mounting elements, or additional hydraulic components, check out the available parts in the Mercedes automatic transmission parts category.

In the context of long-term vehicle operation, it is also worth considering the impact of using original used components on the future value of the car. The following material describing this relationship may be helpful: Original used parts vs. car resale value – how not to lose money?, which explains why maintaining brand and specification consistency is important when selling a car later on.