Mercedes W211 OM646 Diesel Engine Fuel Injection Pressure Line A6460700133

Mercedes W211 OM646 Diesel Engine Fuel Injection Pressure Line are original diesel fuel system components designed for the OM646 engine in the E-Class W211 model. Thanks to their factory geometry and precise fit for the diesel unit, they ensure stable fuel delivery and proper cooperation with other injection system components, which translates into predictable diesel engine performance.

Specifications and technical data

• SKU: A6460700133
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6460700133
• Substitutable numbers: A6460700133, A 646 070 01 33
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The fuel lines in the OM646 engine are responsible for controlled transport of diesel fuel between the supply system components, maintaining appropriate operating pressure and connection tightness. In the case of diesel units such as the OM646, the proper condition of the lines has a direct impact on:

• idle stability,
• ease of cold starting,
• even fuel dosing to the injectors,
• reducing the risk of air entering the system.

These components are structurally matched to the engine architecture in the Mercedes W211, which facilitates installation and allows for maintaining the factory routing of the lines in the engine bay.

Technical parameters and compatibility with the diesel engine

The presented set belongs to the Lines, hoses and pipes group and is designed specifically for diesel supply systems. This means that the diameters, shape, and routing of the lines are adapted to the properties of diesel fuel and the pressures occurring in modern diesel units.

As a result, the fuel lines for the Mercedes W211 with the OM646 engine ensure:

• adequate resistance to fuel and operating temperatures,
• maintenance of connection tightness under typical operating conditions,
• compatibility with factory mounts and brackets in the engine bay.

Characteristics of the used component

The offered set of fuel lines is a used part, sourced from the dismantling of a Mercedes vehicle. Such components are often chosen as an economical alternative to new parts, especially in the case of metal elements and rigid lines, which, when properly maintained, retain their properties for a long time.

Choosing used fuel lines allows for reducing service costs while maintaining the original design and fit for the specific model and engine. This is a particularly beneficial solution for routine repairs, replacing damaged sections, or restoring system efficiency after leaks.

Service application and installation

Mercedes W211 OM646 Diesel Engine Fuel Injection Pressure Line will work well both for typical replacement of worn or damaged sections and for more extensive service work within the fuel supply system. Thanks to their factory origin, these components:

• fit the standard ports and connectors in the OM646 engine,
• allow for maintaining the original routing of the lines,
• facilitate the mechanic's work thanks to a predictable fit.

During installation, it is recommended to use new seals and thoroughly clean the contact points to fully utilize the potential for tightness and durability of the lines.

Expanding the fuel system in a Mercedes

If you are planning a comprehensive repair or upgrade of the fuel supply area in your Mercedes and need other elements from the same group, such as additional lines, flexible hoses, or rigid fuel pipes, check the available parts in the Mercedes lines, hoses and pipes category.

For drivers considering wider use of aftermarket parts, an interesting addition to your knowledge may be an article describing the advantages of used components and ways to consciously select elements for popular models – more information can be found in the material Used car parts for Mini Cooper – a way for style and savings.