Audi Q3 8U VW Tiguan 5T Passat 3G Caddy SA EGR Tube Hose Line Pipe 04L131552DL

Audi Q3 8U VW Tiguan 5T Passat 3G Caddy SA EGR Tube Hose Line Pipe is an original component from the EGR Valves and Parts group, designed for exhaust gas recirculation systems in popular VAG group models. This used OEM part ensures factory-spec fitment, stable exhaust gas routing, and proper operation with the EGR valve, resulting in predictable engine performance and compliance with manufacturer specifications.

Specifications and technical data

• SKU: 04L131552DL
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L131552DL
• Substitutable numbers: 04L131552DL, 04L 131 552 DL
• Category: EGR Parts & Valves

Purpose and function in the EGR system

The EGR tube in the Audi Q3, VW Tiguan, Passat, and Caddy is responsible for the controlled delivery of exhaust gases from the exhaust manifold to the intake system, in accordance with engine control unit parameters. A properly selected EGR tube stabilizes exhaust flow, supports the maintenance of optimal engine operating temperatures, and helps reduce nitrogen oxide emissions.

In practice, this means:

• maintaining the correct direction and sealing of exhaust flow within the EGR circuit,
• proper cooperation with the EGR valve and other system components,
• reducing the risk of engine control unit errors related to incorrect exhaust flow.

Construction and fitment for Audi and VW models

The offered EGR tube is an OEM component from Audi, which ensures the preservation of factory geometry, mounting points, and connection diameters. As a result, installation in the Audi Q3 8U, VW Tiguan 5T, Passat 3G, or Caddy SA is straightforward, without the need for modifications or adjustments required by aftermarket replacements.

Key benefits of using an original EGR tube:

• factory-perfect fit with the manifold and other EGR system components,
• preservation of the exhaust flow path designed by the manufacturer,
• reduction of stress on mounts and seals due to correct geometry.

Component condition and operational aspects

The part has a status of Used, which means it has been removed from a vehicle and is intended for further use after proper installation. For the EGR system, this is particularly important in vehicles where the original component has suffered mechanical damage, leaks, or excessive corrosion.

When replacing the EGR tube, it is worth paying attention to:

• the condition of sealing surfaces and flanges,
• correct positioning of the tube relative to engine accessories,
• absence of stress after tightening the mounts, which could lead to micro-leaks.

Identification and vehicle compatibility

The product has assigned OEM markings and interchangeable numbers, which facilitates clear identification in service catalogs. In our online store, the part is marked with a unique SKU, and in the specification, you will also find the OEM Part Number and available interchangeable numbers. Before purchasing, it is recommended to compare this data with your vehicle documentation or the number on the removed component to ensure full compatibility with your specific engine version and model year.

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 hoses, valves, or additional exhaust gas recirculation components, check out the available parts in the Audi EGR Valves and Parts category.

Technical support and knowledge about engine systems

For drivers interested in the broader context of operating and servicing engine accessories, including components such as EGR tubes, expert material dedicated to maintaining timing and injection systems in modern units may be useful. Practical tips on part selection, prevention, and diagnostics can be found in the article Reliability under the star sign – how to care for engine accessories in popular Mercedes-Benz C and E-Class models?, which demonstrates universal principles for the proper maintenance of modern engines.