Mercedes W213 W222 OM656 Fuel Injection Line Pressure Pipe A6560705600

Mercedes W213 W222 OM656 Fuel Injection Line Pressure Pipe is an original fuel system component designed for precise fuel delivery to the fuel rail in the OM656 engine. As part of the Lines, hoses and pipes group, it ensures stable operating conditions for the injection system, which translates into the engine's smooth performance. This used OEM component is a sensible choice for professional repair or maintenance of the fuel system in high-end Mercedes vehicles.

Specifications and technical data

• SKU: A6560705600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6560705600
• Substitutable numbers: A6560705600, A 656 070 56 00
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The Mercedes W213 W222 OM656 Fuel Injection Line Pressure Pipe is responsible for the controlled transport of fuel between the high-pressure system components in the OM656 engine used in Mercedes W213 and W222 models. A correctly selected pipe:

• maintains the tightness of the injection system at high operating pressures,
• reduces the risk of fuel pressure drops and starting problems,
• supports even fuel rail supply,
• prevents fuel leaks in the engine area.

By maintaining factory geometry and internal diameters, the pipe works with the injection system according to the manufacturer's specifications, which is important for both performance and engine durability.

Benefits of using an original Mercedes pipe

Using an original fuel rail supply pipe for the OM656 engine provides a number of practical service and operational benefits:

• Factory fit – proper length, shape, and mounting points facilitate installation in the W213 and W222 engine bay without modifications.
• Consistency with other fuel system components – the pipe works with the fuel rail, injectors, and accessories according to the manufacturer's design.
• Stable operating parameters – maintaining proper fuel flow promotes smooth engine operation and reduces the risk of errors related to fuel pressure.
• Reasonable repair cost – a used OEM component allows for reduced service costs while maintaining the design intended for the specific engine.

Installation characteristics and application

The fuel rail pipe is designed to operate in the high-pressure zone of the OM656 engine, so its construction is adapted to the thermal and pressure loads typical of modern Mercedes diesel units. In practice, this means:

• the possibility of use when replacing a damaged or leaking pipe,
• restoration of the correct fuel flow path within the fuel rail,
• reduction of the risk of uncontrolled leaks in the engine area,
• maintenance of the original pipe routing relative to other components in the engine bay.

The used component allows for economical repair while maintaining compliance with the factory specifications of the Mercedes fuel system.

Product condition and service application

The offered pipe comes from a Mercedes vehicle and is classified as a used part, making it an attractive solution for repairs where structural compliance with the original system is key. This type of component is suitable both for spot replacement of a damaged pipe and for broader service work within the OM656 engine fuel system.

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

Technical support and repair cost optimization

The selection of appropriate fuel system components has a direct impact on service costs and repair durability. In many cases, using used, original components allows for significantly lower expenses while maintaining correct engine operating parameters. If you want to better understand how part selection affects the operating economy of modern engines, it is worth reading our guide: Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs.