Audi A4 B7 Oil Gearbox Transmission Cooling Line Pipe 2.0 TFSI 8E0317821E

Description

Audi A4 B7 Oil Gearbox Transmission Cooling Line Pipe 2.0 TFSI is an original drivetrain component designed for the supply and return of oil between the gearbox and the oil cooler. Thanks to its factory geometry and connectors, it ensures stable operating pressure and the proper functioning of the automatic or automated transmission under demanding thermal conditions. This solution is dedicated to users who expect a perfect fit for the Audi A4 B7 generation with a 2.0 TFSI engine.

Specifications and technical data

• SKU: 8E0317821E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0317821E
• Substitutable numbers: 8E0317821E, 8E0 317 821 E
• Category: Oil Coolers & Lines

Purpose and function in the gearbox oil cooling system

The described line belongs to the Oil coolers and lines group, responsible for controlling transmission oil temperature. This component transports oil between the gearbox and the heat exchanger, stabilizing the transmission’s operating conditions during city driving, highway travel, and under higher thermal loads.

A properly selected oil cooling line reduces the risk of gearbox overheating, which translates into:

• more predictable transmission operation across the full temperature range,
• reduced thermal stress on internal components,
• maintenance of proper lubrication parameters for the transmission oil.

Construction and fitment for Audi A4 B7 2.0 TFSI

The line was designed as an original Audi part, maintaining the factory routing geometry within the engine bay. Properly shaped rigid and flexible sections allow for the correct routing of the oil line relative to the gearbox, cooler, and adjacent components.

Such fitment ensures:

• collision-free routing of the line relative to suspension and body components,
• correct positioning at factory brackets and mounts,
• maintenance of the distances from heat sources as designed by the manufacturer.

Characteristics of the used component

The offered line comes from dismantling and is classified as a used part. This means it has already been in service in a vehicle but can still perform its function in the gearbox oil cooling system. This type of component is a good choice in situations where the priority is to optimize repair costs while maintaining the original design of the part.

Choosing a used oil cooling line is particularly justified for repairs:

• following collisions or mechanical damage in the gearbox area,
• related to leaks in the transmission oil system,
• carried out in stages, with an emphasis on economical service solutions.

Benefits of using an original oil cooling line

Using an original line in an Audi A4 B7 2.0 TFSI allows you to maintain drivetrain operating parameters consistent with the manufacturer’s specifications. Factory-matched connectors and diameters minimize the risk of leaks, and the correct oil flow cross-section helps maintain a stable gearbox operating temperature.

In practice, this translates into:

• more consistent transmission operation during long-term driving,
• reduction in lubrication system performance drops,
• easier diagnostics of potential faults related to the oil circuit.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the gearbox oil cooling system in your Audi and need other elements from the same group, such as oil lines, oil coolers, or additional return lines, check the available parts in the Audi oil coolers and lines category.

To better understand the impact of temperature on the cooling system and the use of pre-owned components, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which describes the practical aspects of selecting and using cooling components in demanding thermal conditions.