Mercedes X164 OM629 Diesel Fuel Pipe Hose Line Tube A6290701132

Mercedes X164 OM629 Diesel Fuel Pipe Hose Line Tube is a specialized component of the diesel fuel supply system, designed for the OM629 series diesel engines in the X164 chassis. It is responsible for the precise routing of fuel within the engine, which directly impacts stable operation, engine refinement, and operational safety. Thanks to a design tailored to the specific Mercedes application, this component from the Lines, Hoses and Tubes group allows for a technically correct replacement of a worn section of the fuel system.

Specifications and technical data

• SKU: A6290701132
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6290701132
• Substitutable numbers: A6290701132, A 629 070 11 32
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The described fuel line has been designed to work with a diesel engine, where maintaining the correct pressure and tightness of the entire supply circuit is crucial. The component guides fuel along a strictly defined path, minimizing the risk of vibrations, chafing, and leaks in the engine compartment.

In diesel systems, such as the OM629, a properly selected fuel hose:

• ensures stable fuel flow under variable engine loads,
• reduces the risk of air entering the system, which is sensitive to even the smallest leaks,
• maintains proper routing of lines relative to other components in the engine bay.

Compatibility with Mercedes X164 and the OM629 unit

The line has been configured for the geometry and connections characteristic of the X164 chassis and the OM629 engine. This means it matches the factory installation routing, which facilitates assembly and allows for maintaining the original fuel line layout in the vehicle.

By using a solution dedicated to a specific Mercedes configuration, the mechanic does not need to modify the length or shape of the line, which reduces the risk of assembly errors and subsequent operational issues.

Technical and material characteristics

The component belongs to the Lines, Hoses and Tubes group, meaning its construction is optimized for operation in a diesel fuel environment and the elevated temperatures of the engine compartment. The design solutions used aim to provide:

• resistance to diesel fuel and typical additives,
• retention of flexibility within the operating temperature range of the OM629 unit,
• stable mounting in factory brackets and guides.

A fuel line configured in this way allows for maintaining proper system tightness and reduces the risk of leaks, which in the case of diesel engines can lead to power loss, starting problems, or unstable idling.

Component condition and assembly aspects

The offered fuel line is a used part, which in practice means it comes from disassembly and can be a cost-effective alternative to a new part while maintaining the functionality required for daily operation. This type of solution is often chosen when servicing older Mercedes X164 units with the OM629 engine, where both technical correctness and rational repair costs are important.

During assembly, it is recommended to:

• check the condition of sockets and quick-connectors in the vehicle before installation,
• use appropriate tools for disconnecting and connecting fuel couplings,
• check the system for leaks after the first engine start.

Why use a dedicated diesel fuel line

Using a fuel line intended for the diesel engine in a Mercedes X164 with an OM629 unit allows for maintaining the factory operating parameters of the fuel supply system. This solution is particularly important in the case of modern diesels, where the fuel system operates under high load and is sensitive to any deviations from the original specification.

By choosing this component, you gain:

• compatibility with the vehicle's design without the need for modifications,
• maintenance of proper line routing in the engine compartment,
• the possibility of an economical repair while maintaining the correct function of the fuel system.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional fuel lines, return hoses, or supply tubes, check the available parts in the Mercedes Lines, Hoses and Tubes category.

To expand your knowledge about upgrades and the selection of used components in passenger cars, including where replacing lines and hoses brings noticeable improvement, it is worth reading the article The hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts, which discusses a practical approach to the service and modification of popular models.