Audi A3 8V Seat Leon Mk3 2.0 TDI Diesel Turbo Oil Feed Line Pipe Hose 04L145771J

The Audi A3 8V Seat Leon Mk3 2.0 TDI Turbo Oil Hose is an original turbocharger and parts component designed for diesel engines. It ensures a stable oil supply to the turbine, which is crucial for the durability and proper operation of the turbocharging system in 2.0 TDI engines.

Specifications and technical data

• SKU: 04L145771J
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L145771J
• Substitutable numbers: 04L145771J, 04L 145 771 J
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and function of the turbine oil line

The turbine oil line is responsible for the precise delivery of lubricating oil to the turbocharger rotor in a diesel engine. Proper oil flow reduces friction, dissipates heat, and reduces the risk of bearing seizure, which directly impacts turbine life and stable engine performance.

In the case of the Audi A3 8V and Seat Leon Mk3 models with the 2.0 TDI engine, a properly selected oil line is particularly important due to the high thermal and pressure loads occurring in modern diesel engines.

Benefits of using the original oil line

Using a genuine turbine oil line in place of a worn or leaking component allows the turbocharger to be restored to proper operating conditions. Key advantages include:

• Factory fit to the lubrication system in the 2.0 TDI engine, no modifications required.
• Stable oil pressure within the turbocharger, reducing the risk of overheating and excessive wear.
• Reducing the risk of oil leaks around the turbine, thus protecting other components in the engine compartment.
• Better turbine protection under the intense use typical of diesel engines used on longer journeys.

Used condition - conscious service choice

The turbine oil line offered is in used condition, providing a reasonable compromise between repair cost and maintaining OEM quality. For many diesel vehicle owners, this is a way to:

• reducing service costs while maintaining the original part specifications,
• avoiding fit problems typical of cheap substitutes,
• maintaining the consistency of the charging system with the manufacturer's factory solutions.

When replacing the turbine oil line, it is recommended to simultaneously check the condition of the turbocharger itself, the seals and the cleanliness of the lubrication system to fully utilize the potential of the component used.

Application in 2.0 TDI diesel engines

The 2.0 TDI diesel engines used in the Audi A3 8V and Seat Leon Mk3 operate under high loads, and the turbocharger is one of the most thermally stressed components. A functioning oil line:

• supports stable operation of the turbine in the full speed range,
• reduces the risk of power loss resulting from improper lubrication,
• helps maintain even operating parameters of the diesel engine in the long term.

This is particularly important in cars used in fleets or on long distances, where the charging system is constantly under intensive use.

Alternative turbochargers and parts for Audi

If you are looking for other components from the turbocharger category and parts dedicated to this brand, check out the turbochargers and parts for Audi available in our store to select components consistent with the factory specifications of your car.

How to save on service with used OEM parts

Rising repair costs are causing more and more drivers to opt for used OEM parts, such as turbo oil lines. To better plan your service budget and make informed choices about used components, it's worth checking out the guide: Rising Repair Costs and the Used Parts Boom – How to Save on Car Service? This will help you better assess when a used part is a cost-effective and safe solution.