Audi Q7 4.2 TDI Turbocharger Oil Pipe Hose Return Right O/S 057145736P

The Audi Q7 4.2 TDI Right Turbocharger Oil Return Hose is an original equipment component from the turbocharger and parts group, designed for the right side of the engine. This used OEM part ensures a factory fit, stable turbocharger performance, and predictable lubrication system behavior in the 4.2 TDI engine.

Specifications and technical data

• SKU: 057145736P
• Mark: Audi
• Condition: Used
• OEM Part Number: 057145736P
• Substitutable numbers: 057145736P, 057 145 736 P
• Location on the vehicle: Right
• Category: Turbos & Parts

Purpose and function of the oil return line

The turbocharger oil return line is responsible for safely draining heated lubricating oil from the turbine housing back to the engine lubrication system. A properly selected component:

• stabilizes the oil pressure in the turbocharger,
• reduces the risk of turbine bearings overheating,
• minimizes the possibility of oil leaks in the area of the right turbocharger,
• helps maintain proper cleanliness of the charging system.

In the case of the 4.2 TDI engine, using the correct hose on the right side is crucial for the even operation of both turbochargers and the durability of the entire system.

Genuine Audi part - fit and compatibility

As an Audi branded turbocharger and parts component, the hose was designed to meet the specific design requirements of the 4.2 TDI engine. This means:

• factory fit to the mounting points on the right side of the engine,
• compliance with the geometry of the right turbocharger and engine block,
• appropriately selected diameter and cross-section of the oil flow,
• compatibility with original seals and connectors.

This allows for predictable assembly, without the need for modifications or matching replacements, which is particularly important in the precise turbocharging system of a diesel engine.

Vehicle placement and mounting considerations

The hose is designed for installation on the right side of the vehicle, in line with the factory turbocharger system in the Audi Q7 4.2 TDI. Proper placement on the vehicle ensures:

• proper oil management in the high temperature zone,
• collision-free routing with respect to the engine accessories,
• maintaining an appropriate gravity gradient for oil return,
• easier leak check during service.

When replacing, it is recommended to thoroughly clean the contact surfaces, check the condition of the seals and verify the patency of the oil return system in order to fully utilize the potential of the element used.

Used condition - conscious service choice

The hose offered is in used condition, representing a reasonable compromise between repair cost and maintaining the original manufacturer's specifications. A used OEM part from a dismantling operation is a solution often chosen by workshops specializing in diesel engine servicing, especially where:

• maintaining the factory geometry and stiffness of the cable,
• cost reduction compared to new elements,
• maintaining the original quality of materials.

If you are considering whether remanufacturing or installing a used OEM part would be a better choice, it is worth reading the analysis in the article "Remanufactured or used original – which part to choose when repairing?" , where practical differences are discussed using examples of popular components.

Application in the turbocharger system of the Audi Q7 4.2 TDI

The Audi Q7 4.2 TDI Right Turbocharger Oil Return Hose is a critical component for the durability of the right turbocharger. Its proper operation affects:

• stable operation of the charging system under high load,
• reducing the risk of oil entering the intake system,
• maintaining the appropriate operating temperature of turbine bearings,
• extending the life of the turbocharger and engine oil.

Replacing the return line is particularly recommended after any major intervention in the charging system, when a leak is suspected or after a turbine failure, to avoid recurring faults resulting from improper oil drainage.

If you are looking for other components from the turbochargers and parts category for Audi, check out the available products in the turbochargers and parts section for Audi , where you will find a wide selection of turbocharger components adapted to various models of this brand.

Comparing the costs and specifications of different solutions can also be helpful when making a purchasing decision – you can find more on this topic in the guide "New or Used? Comparing the Cost and Quality of Car Parts," which discusses the practical aspects of part selection based on OEM quality and repair budget.