Mercedes ML W166 Petrol Vacuum Line Pipe Tube Hose A1664300929

Mercedes ML W166 Petrol Vacuum Line Pipe Tube Hose is an original vacuum system component from the Lines, hoses and pipes group, designed for use in vehicles with a petrol engine. Using a component of this type allows for maintaining the factory operating characteristics of vacuum-controlled systems, which translates into stable and predictable engine performance.

Specifications and technical data

• SKU: A1664300929
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1664300929
• Substitutable numbers: A1664300929, A 166 430 09 29
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function of the vacuum line

The vacuum line in the Mercedes ML W166 model is responsible for the precise transmission of vacuum between the components of the petrol engine's auxiliary equipment. A properly selected and airtight line:

• stabilizes the operation of vacuum-controlled systems,
• reduces the risk of power drops resulting from leaks,
• supports the engine's correct response to load and changes in rotational speed.

By maintaining the original geometry and internal diameter, the line ensures proper flow and correct vacuum values across the entire operating range of the engine.

Benefits of using an original Mercedes component

Choosing a vacuum line dedicated to the ML W166 by Mercedes is a beneficial solution both in terms of technical performance and operation. The original component:

• is matched to the factory routing in the engine bay,
• minimizes the risk of collision with other lines and auxiliary components,
• maintains compliance with the petrol engine operating parameters specified by the manufacturer.

Such a fit promotes smooth engine operation and facilitates the diagnosis of potential faults in the future.

Condition, installation and application in petrol engines

The line is offered as a used component, which allows for an economical replacement of a damaged or leaking section of the vacuum system while maintaining the original specification. Thanks to the design intended for petrol engines, the component works with the vacuum values and operating temperatures characteristic of them.

In practice, installation involves replicating the factory routing of the line, while maintaining proper attachment in brackets and guides. A correctly installed component reduces vibration, friction against other parts, and potential micro-cracks in the long term.

Application in the "Lines, hoses and pipes" Mercedes group

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 flexible vacuum lines, supply hoses, or return pipes, check the available parts in the Mercedes lines, hoses and pipes category.

Technical support and vehicle development

The selection of appropriate vacuum system components has a direct impact on engine refinement, throttle response, and the stability of operating parameters under various load conditions. In the case of upgrades or more extensive service work on the vehicle, it is also worth taking care of the condition of other components, such as wheels and tires – in this regard, a practical guide on the regeneration and purchase of alloy wheels may be helpful: Used wheels like new – a guide to buying and refurbishing alloy wheels.