Audi Q7 4M Automatic Gearbox Oil Pressure Feed Pipe Line 4N0317818AG

Audi Q7 4M Automatic Transmission Oil Pressure Feed Line is an original drivetrain component, specifically designed to work with the automatic transmission in gasoline-powered vehicles. Thanks to its factory geometry and fitment to body mounts, it ensures stable transmission oil flow and correct operating pressure in the automatic gearbox. A used OEM part is a sensible choice for professional repairs when you want to maintain the original system's performance characteristics.

Specifications and technical data

• SKU: 4N0317818AG
• Mark: Audi
• Condition: Used
• OEM Part Number: 4N0317818AG
• Substitutable numbers: 4N0317818AG, 4N0 317 818 AG
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and Function in the Drivetrain

The automatic transmission oil pressure line in the Audi Q7 4M is responsible for transporting transmission oil between the gearbox and the cooling and lubrication system components. In vehicles with an automatic transmission, stable oil pressure is crucial for smooth gear changes, protecting clutches and control valves, and maintaining the correct operating temperature of the transmission.

Gasoline versions of the Audi Q7 4M require precisely selected oil lines, as the thermal characteristics and transmission loads differ from diesel variants. Using the correct pressure line helps reduce the risk of leaks, pressure drops, and oil overheating, which contributes to the longevity of the entire system.

Line Construction and Benefits of Using OEM Parts

The original oil feed line for the Audi has been designed to maintain the correct flow diameter, resistance to operating pressure, and compatibility with factory connectors. This ensures:

• maintaining proper oil flow across the full range of transmission loads,
• minimizing the risk of leaks at connections to the oil cooler and gearbox housing,
• providing stable operating conditions for the automatic transmission in both city and highway driving.

Choosing an original line from the Oil Coolers and Lines category allows you to maintain the system's factory operating parameters, which is particularly important in a heavy SUV like the Audi Q7 4M, where the automatic transmission operates under significant load.

Professional Installation and Workshop Application

The automatic transmission oil pressure line is a component that operates under high temperatures and significant pressure, so when replacing it, it is recommended to:

• check the condition of the seats and connectors in the gearbox and at the oil cooler,
• verify the seal after installation using appropriate service procedures,
• check the level and quality of the transmission oil after completion of work.

A used OEM part is well-suited for professional workshops specializing in automatic transmission service, where compliance with factory specifications and the possibility of economical repairs without compromising fitment are important.

Technical Support and Oil Cooling System Knowledge

The automatic transmission oil cooling system is closely linked to the vehicle's overall cooling system. It is useful to know the typical symptoms of overheating and diagnostic methods to promptly identify problems with oil lines, the cooler, or the transmission itself. A more detailed discussion on the impact of cooling on the durability of the powertrain and transmission can be found in the article: Engine Cooling System – Overheating, Repair, and Used Coolers.

Related Audi Oil System Components

If you are planning a comprehensive repair or upgrade of the oil system area in your Audi and need other parts from the same group, such as oil lines, oil coolers, or additional sections of feed lines, check the available parts in the Audi Oil Coolers and Lines category.

Additional tips on selecting used components before the winter season, including drivetrain and cooling system parts, are provided in the guide: Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?.