Mercedes-Benz W163 W203 W210 OM611 High Pressure Pump Pipe Hose A6110700330

Mercedes-Benz W163 W203 W210 OM611 Fuel Pump High-Pressure Line is a component from the Lines, Hoses, and Tubes category, designed for the diesel engine fuel system. It is an original Mercedes component, ensuring stable high-pressure fuel delivery in the rear part of the vehicle. Thanks to its factory geometry and fit, the line allows for maintaining the proper operating parameters of the OM611 engine.

Specifications and technical data

• SKU: A6110700330
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6110700330
• Substitutable numbers: A6110700330, A 611 070 03 30, KZ
• Location on the vehicle: Rear
• Category: Hoses, Lines & Pipes

Purpose and Function of the High-Pressure Line

The offered high-pressure line is dedicated to Mercedes-Benz M-Class W163, C-Class W203, and E-Class W210 models with the OM611 engine. Its function is to precisely and securely deliver fuel from the high-pressure pump to further system components in the rear of the vehicle. The appropriately selected diameter and shape of the line help maintain stable operating pressure, which translates to smooth engine operation and correct fuel dosage.

Construction and Fit to the Fuel System

The line belongs to the group of components referred to as Lines, Hoses, and Tubes, meaning it is designed for resistance to high pressure and contact with diesel fuel. The line's construction is optimized for:

• rigidity necessary to maintain shape under high operating pressure,
• resistance to vibrations generated by the engine and chassis operation,
• proper routing in the engine bay and undercarriage without the risk of abrasion.

Thanks to its factory fit to specific Mercedes-Benz models, installation is orderly, maintaining original mounting points and routing.

Benefits of Using an Original Mercedes Line

Using an original high-pressure line in the fuel system offers a range of practical service and operational benefits. The most important include:

• Compatibility with the OM611 engine – the line is structurally matched to the characteristics of the high-pressure pump and other system components.
• Stable fuel system operating parameters – proper high-pressure fuel delivery reduces the risk of pressure drops and starting problems.
• Easier diagnostics and service – using a component that matches the factory specification simplifies workshop tasks and reduces the need for system modifications.
• Safe operation in the rear of the vehicle – the line is adapted for the vehicle's placement specified for this structural solution.

Condition of the Component and Application in Repairs

The fuel pump high-pressure line is offered as a used part, making it an attractive solution for operational repairs and budget-friendly fuel system overhauls. It is particularly useful in situations where replacing a damaged or leaking line is necessary, and maintaining the original installation specification without using substitutes of uncertain parameters is a priority.

Before installation, standard checks of seal integrity and connection surface condition are recommended, as well as replacement of seals according to the vehicle manufacturer's service procedure. A correctly selected and installed line helps reduce the risk of fuel leaks and pressure problems in the common rail system.

Compatibility with Other Lines and System Components

During fuel system servicing, it is worth paying attention to other lines, hoses, and tubes working with the high-pressure pump, common rail manifold, and fuel filter. If you are planning a comprehensive replacement or inspection of the fuel system in your Mercedes, check the available parts in the Mercedes Lines, Hoses, and Tubes category.

If, alongside fuel system repairs, you are considering diagnostics or replacement of the gearbox, you will find useful information on common faults and choosing a used gearbox in the article Gearbox: Manual, Automatic, or DSG – Common Faults and a Guide to Buying a Used Gearbox.