Mercedes X166 GL350 Diesel Vacuum Pump Pipe Line Hose A1668001115

Mercedes X166 GL350 Diesel Vacuum Pump Pipe Line Hose is an original vacuum system component designed for diesel engines. It ensures stable vacuum routing between the pump and other components, which translates into reliable operation of vacuum-controlled systems in your Mercedes. Using this OEM part is a sensible choice for professional repairs when you value factory fitment and predictable performance.

Specifications and technical data

• SKU: A1668001115
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668001115
• Substitutable numbers: A1668001115, A 166 800 11 15
• Fuel type: Diesel
• Category: Vacuum Pumps

Application in the diesel vacuum system

The vacuum hose works with the vacuum pump in the diesel engine, ensuring safe and airtight transmission of vacuum to the actuators. In practice, this affects, among other things:

• proper operation of vacuum-controlled actuators,
• stability of auxiliary systems,
• maintenance of correct engine operating parameters.

Thanks to its design tailored to the specific configuration of the GL350 X166, the hose maintains the correct routing geometry, which reduces the risk of chafing, kinking, and leaks in the engine compartment.

Benefits of using an original Mercedes hose

Choosing an original vacuum hose for the vacuum pump in a Mercedes offers a number of practical advantages:

• Precise fit – the correct length, diameter, and shape ensure installation without modifications.
• Consistency with the factory system – the hose is designed to work with the original vacuum pump and diesel accessories.
• Stable operating parameters – maintaining the appropriate vacuum level promotes smooth operation of controlled systems.
• Reduction of secondary failure risk – an airtight hose reduces the risk of engine and accessory performance issues.

Using an OEM part allows you to maintain performance characteristics close to factory standards, which is particularly important in modern diesel engines sensitive to vacuum drops.

Condition, verification, and selection based on technical data

The item is offered in used condition, which in practice means it has been removed from a vehicle and verified for further serviceability. This is a cost-effective solution while maintaining the manufacturer's original specifications.

To select the correct hose for your car, it is worth using the manufacturer's markings and vehicle data. If necessary, you can use our guide article, which describes the principles of selecting power supply and engine accessory components based on manufacturer markings – details can be found in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. Although it mainly concerns the fuel system, it also addresses the practical use of OEM numbers when selecting parts.

Mercedes vacuum pumps – system expansion and service

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 vacuum lines, connectors, or additional installation sections, check the available parts in the Mercedes vacuum pumps category.

Summary

Mercedes X166 GL350 Diesel Vacuum Pump Pipe Line Hose is a functional, original vacuum system component that helps maintain stable operating parameters for the engine and accessories. By choosing a used OEM hose, you gain factory fitment, predictable operational behavior, and consistency with other system components, which is crucial for the professional service of modern diesel engines.