Audi Q5 8R 2.0 TDI CAHA Diesel Intercooler Air Pipe Hose 8R0145737H

Audi Q5 8R 2.0 TDI CAHA Diesel Intercooler Air Pipe Hose is an original boost system component from the Lines, hoses and pipes group, designed for installation on the left side of the vehicle. Thanks to its factory geometry and fitment for the diesel unit, it ensures stable boost air flow and supports the proper operation of the diesel engine. This is a practical solution for users who want to maintain the structural integrity of the intake system in their Audi.

Specifications and technical data

• SKU: 8R0145737H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8R0145737H
• Substitutable numbers: 8R0145737H, 8R0 145 737 H
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the boost system

The Audi Q5 8R 2.0 TDI CAHA Diesel Intercooler Air Pipe Hose is responsible for the precise routing of compressed air between the turbocharger, intercooler, and intake manifold. This component operates under demanding pressure and temperature conditions, which is why its proper condition has a direct impact on:

• boost pressure stability in the diesel engine,
• air cooling efficiency in the intercooler,
• even cylinder filling,
• reduction of power drops resulting from system leaks. A properly selected intercooler air pipe helps maintain the correct operating parameters of the engine, which translates into predictable throttle response and proper cooperation with the control electronics.

Construction and fitment for the Audi Q5 8R 2.0 TDI CAHA

The component has been designed specifically for the engine bay architecture of the Audi Q5 8R generation with the 2.0 TDI CAHA unit. Placement on the left side of the vehicle means that the pipe geometry, connection diameters, and mounting points are adapted to the factory routing of lines in this specific model. As a part from the Lines, hoses and pipes group, the intercooler pipe works with other intake system components to create a sealed air flow path. Proper fitment minimizes the risk of stress, rubbing against other components, and unwanted vibrations during engine operation.

Operating characteristics in a diesel engine

The 2.0 TDI CAHA diesel engine generates high boost pressures, so the intercooler hose must maintain adequate rigidity and resistance to temperature changes. Operation in a diesel system means:

• frequent changes in load and pressure within the hose,
• contact with high-temperature air on the compressor side,
• the necessity of maintaining a seal during long-term operation. A well-chosen intercooler air pipe reduces the risk of power loss, limp mode, and errors related to incorrect boost pressure recorded by the engine control unit.

Condition, origin, and service application

The offered component is in used condition, making it an attractive service solution for drivers looking for original components at a reasonable price. In the event of damage, cracking, or leaking of the existing intercooler hose, replacing it with a factory equivalent allows for restoring proper air flow without the need for system modifications. The intercooler air pipe will work well both during standard operation and after accident repairs, where it is important to recreate the original routing of lines in the engine bay.

Benefits of using an original hose

Using an original hose from the Lines, hoses and pipes group in the Audi Q5 8R 2.0 TDI CAHA provides a number of practical benefits:

• Factory fitment – no need for modifications, drilling, or custom adapters.
• Consistency with other intake system components – the hose works with standard clamps and mounts.
• Reduced risk of leaks – proper adhesion to ports and connectors.
• Predictable boost system behavior – operating parameters close to factory specifications. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as intake lines, vacuum hoses, or boost system pipes, check the available parts in the Audi lines, hoses and pipes category. For drivers who are carrying out post-collision repairs and want to consciously combine safety with optimal service costs, a guide describing the use of original second-hand OEM components may be helpful – more information can be found in the article Repairing a car after a collision using original used OEM parts.