The Audi Q2 GA 2.0 TDI Turbo Oil Return Hose is an original turbocharger component designed for diesel engines. It ensures the controlled flow of lubricating oil from the turbocharger, which directly impacts the durability and stable operation of the entire turbocharger system.
Specifications and technical data
- SKU: 05L145736B
- Mark: Audi
- Condition: Used
- OEM Part Number: 05L145736B
- Substitutable numbers: 05L145736B, 05L 145 736 B
- Fuel type: Diesel
- Category: Turbos & Parts
The role of the oil return line in the turbocharging system
The oil return line in the Audi Q2 GA 2.0 TDI is responsible for returning oil from the turbocharger housing to the engine lubrication system. Proper oil flow minimizes the risk of bearing overheating, reduces carbon buildup, and supports stable lubrication pressure in the diesel engine.
A functioning return line helps prevent typical symptoms of turbocharger wear, such as excessive smoke, oil leaks around the turbo, and decreased performance. Replacing the worn component with an original turbocharger and parts component is one of the key steps in professional turbocharger service.
Original origin and fitment to Audi
The offered hose is an Audi Group part, which means it retains the factory geometry, connection diameters, and mounting points. This ensures predictable installation, without the need for modifications or adapters, and ensures the hose works with the engine components as intended by the manufacturer.
The unique design ensures proper oil flow under typical diesel engine conditions – both during leisurely driving and under sustained highway load. This is particularly important in modern TDI engines, where stable turbocharger lubrication impacts the smooth operation and longevity of the entire system.
Used condition - conscious service choice
The part is offered in used condition, allowing for a cost-effective repair while maintaining the original manufacturer's specifications. For many Audi Q2 GA 2.0 TDI owners, this represents a reasonable compromise between cost and quality, especially for complex turbocharger work, where the list of parts to be replaced can be extensive.
Choosing a used oil return line also aligns with the automotive industry's approach to reusing serviceable components. If you'd like to learn more about the benefits of this approach, check out our article on the circular economy and the impact of used parts on the environment and service costs .
Benefits of using the original oil drain hose
Using the correct oil return line in the Audi Q2 GA 2.0 TDI turbocharging system brings a number of practical benefits:
- Factory fit – compatible with turbine and engine system, no installation problems.
- Stable oil flow – reducing the risk of turbo housing overfilling and leaks into the intake or exhaust system.
- Support for turbocharger durability – proper bearing lubrication under typical diesel engine loads.
- Optimization of service costs – a used component allows for lower repair costs while maintaining the original design.
Other oil lines for Audi turbochargers
If you are also looking for other oil lines for Audi turbochargers, check out our Audi turbochargers and parts category, where you will find a wide selection of turbocharger components suitable for various models of this brand.
Maintaining Audi Character with Used Parts
For many drivers, it's important that repairs don't compromise the car's character. For Audi, the consistency of the components used is particularly important. If you're interested in how used components help preserve the brand's distinctive character, check out our post on how genuine used Audi parts help preserve the car's factory DNA .
