Audi A5 8T A4 B8 2.0 TDI CAGA Diesel Fuel Line Pipe Hose Tube 8K0201543Q

The Audi A5 8T A4 B8 2.0 TDI CAGA Diesel Fuel Line Hose Pipe is an original fuel system component designed for Audi diesel engines. Manufactured as a factory part, it ensures proper fuel delivery in 2.0 TDI units, maintaining the parameters set by the vehicle manufacturer.

Specifications and technical data

• SKU: 8K0201543Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0201543Q
• Substitutable numbers: 8K0201543Q, 8K0 201 543 Q
• Fuel type: Diesel
• Part type: Fitting
• Category: Hoses, Lines & Pipes

Purpose and Role in the Fuel System

This line belongs to the Lines, Hoses, and Pipes category and is a component of the fuel system in Diesel engines. It is responsible for stable fuel delivery between system sub-assemblies, which directly impacts the operational smoothness of the 2.0 TDI CAGA unit and the correct fuel metering by the injection system.

Its dedication to specific Audi A4 B8 and Audi A5 8T models with diesel engines allows for the preservation of factory-set line routing geometry, minimizing the risk of vibrations, chafing, and leaks resulting from improper fitting of universal aftermarket parts.

Advantages of Using an Original Fuel Line

• Precise Fitment – a component designed for a specific Audi platform, facilitating installation and correct positioning within the engine bay.
• Diesel Engine Compatibility – construction adapted to the operating parameters of diesel units, including fuel pressure and temperature.
• Appropriate Stiffness and Flexibility – the line operates correctly under conditions of vibration and load changes, reducing the risk of micro-cracks and leaks.
• Consistency with OEM System – maintaining the original fuel line routing simplifies future diagnostics and servicing.

Product Characteristics and Installation

As a component of the diesel engine fuel system, the Audi fuel line has been designed for safe fuel flow and resistance to typical operational loads. A used OEM part is a good choice when aiming to maintain original specifications while optimizing repair costs.

In most cases, installing the line involves:

• correct routing within factory brackets,
• maintaining the seal of connections with other fuel system components,
• verifying the absence of stress after tightening fittings and clamps.

Due to the importance of the fuel system for safety and reliability, installation by someone experienced in diesel engine servicing is recommended.

Why Choose an Audi Fuel Line for Diesel

By using an original Audi fuel line for a Diesel engine, you maintain compliance with the vehicle's original design specifications. This translates to stable operation of the 2.0 TDI CAGA unit, correct fuel system pressure, and a reduced risk of failures related to leaks or improper line routing.

If you need other components from the Lines, Hoses, and Pipes category for this brand, check out the Audi lines, hoses, and pipes available in our store to complete the entire system according to manufacturer requirements.

Operation and Servicing of Auxiliary Systems

When working on the fuel system, it is also advisable to plan for a review of other systems that affect driving comfort and safety. Useful tips on selecting used OEM components and a service schedule can be found in the article Air Conditioning and Heating – Part Selection and Maintenance for Year-Round Comfort, which discusses practical procedures and answers to frequently asked questions.