Mercedes R129 W163 C208 W220 Fuel Rail Distributor Injector M113 A1130700595

Mercedes R129 W163 C208 W220 Fuel Rail Distributor Injector is an original fuel system component designed for the M113 engine in selected Mercedes models. The fuel rail ensures stable fuel delivery to the injectors, which translates into smooth engine operation and predictable combustion parameters. Thanks to its factory OEM design, it provides a reliable foundation for professional repair or replacement of fuel injection system components in vehicles of this series.

Specifications and technical data

• SKU: A1130700495
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1130700495
• Substitutable numbers: A1130700595, A 113 070 05 95, A1130700495, A 113 070 04 95, 0280151082, 0 280 151 082, A1130780049, A 113 078 00 49, A1130780249, A 113 078 02 49
• Category: Fuel Injectors

Purpose and function of the fuel rail

The fuel rail in the M113 engine is responsible for distributing fuel to individual injectors at the appropriate operating pressure. Combined with a properly functioning fuel pump and engine management system, it enables precise fuel mixture dosing, which directly impacts engine refinement, performance, and fuel consumption. Using an original fuel rail in Mercedes R129, W163, C208, and W220 models allows for maintaining factory flow parameters and system tightness.

Benefits of using an original fuel rail

Selecting a fuel rail dedicated to a specific engine type and vehicle generation reduces the risk of leaks, assembly issues, and incorrect injector positioning. The original design ensures:

• proper fuel delivery to all cylinders,
• stable mounting of injectors in the cylinder head,
• compatibility with factory M113 engine equipment,
• easier diagnostics of potential fuel system faults.

As a result, replacing the rail with an OEM component is a safe service solution when dealing with fuel injection system problems or during comprehensive engine regeneration.

Condition, origin, and service application

The presented fuel rail comes from a Mercedes vehicle and is a component from the Injector nozzles category, working with gasoline injectors in the M113 engine. A used OEM component is a sensible choice when you want to maintain original technical specifications while optimizing repair costs. This type of part is suitable both for replacing a damaged rail and during major overhaul work in the fuel supply area.

Assembly and diagnostic tips

Before installing the fuel rail, it is recommended to thoroughly check the condition of the injector seats, fuel lines, and seals to avoid subsequent leaks and pressure drops. It is also worth verifying the operation of the injectors and the tightness of the entire fuel system using appropriate diagnostic tools. For vehicles with higher mileage, combining the rail replacement with an injector inspection helps restore stable engine operation and reduce the risk of further failures.

If you want to better understand the symptoms of fuel injection system wear and the consequences of neglecting them, the following article will be helpful: Diesel injector faults – how to recognize them and what are the risks of neglecting them. Although it concerns diesel units, it discusses universal principles of fuel injection system diagnostics.

A sensible choice of a used OEM part

Choosing a used OEM fuel rail for a Mercedes is a way to combine factory build quality with service cost control. In many cases, such a component allows for significant savings compared to a new part while maintaining compatibility with factory engine equipment. If you are interested in the broader economic context of using used components, it is worth reading the guide: Rising repair costs and the boom in used parts – how to save on car service?.

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 injectors, seals, or fuel lines, check the available parts in the Mercedes injector nozzles category.