Mercedes CL C118 X118 Vacuum Hose Pipe Line C220d A6540700802

Mercedes CL C118 X118 Vacuum Hose Pipe Line is an original engine control system component, belonging to the Lines, Hoses and Pipes category. Designed by the vehicle manufacturer, it ensures proper vacuum routing within the power unit, which translates into stable operation of the auxiliary equipment and predictable engine response. Using an OEM part is a sensible choice when servicing the factory vacuum system in modern Mercedes diesel engines.

Specifications and technical data

• SKU: A6540700802
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6540700802
• Substitutable numbers: A6540700802, A 654 070 08 02
• Category: Hoses, Lines & Pipes

Purpose and function in the vacuum system

The vacuum hose in the Mercedes C220d with C118 / X118 body style is responsible for precisely delivering vacuum to selected control elements in the diesel engine. The properly selected inner diameter, shape, and length of the hose allow for maintaining the appropriate tightness and system response speed, which is important for the operation of actuators, valves, and other vacuum-dependent components.

The original design of the hose minimizes the risk of leaks, improper routing in the engine bay, and uncontrolled kinks that could disrupt the flow. As a result, the vacuum system maintains the parameters specified by the vehicle manufacturer.

Benefits of using an original Mercedes hose

Using a factory vacuum hose in a Mercedes C220d helps maintain the consistency of the entire engine control system. Compared to aftermarket replacements, the original part provides:

• precise fitment to mounts and guides in the engine bay,
• appropriate material flexibility within typical operating temperature ranges,
• stable vacuum flow parameters during operation,
• easier diagnostics and service due to compliance with manufacturer documentation.

For the user, this means a lower risk of engine accessory issues and greater predictability of vehicle behavior in daily use.

Characteristics of the used part

The offered vacuum hose is a used part, sourced from disassembly. This type of part, provided it is airtight and free of mechanical damage, can successfully continue to operate in the vacuum system, providing an economical solution for repairing or replacing a damaged hose. Choosing a used OEM part is particularly beneficial when you want to maintain the original technical specification at reasonable service costs.

Application in service practice

The vacuum hose in the Mercedes C220d is important wherever stable vacuum is required to control auxiliary engine components. In service practice, replacing the hose is recommended if you detect:

• cracks, abrasions, or signs of overheating on the surface,
• leaks manifesting as a drop in vacuum pressure,
• deformation of the hose causing flow restriction.

Selecting an original hose avoids problems with fitting the ends, diameter, and routing path in the engine bay, which shortens installation time and facilitates the mechanic's work.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as vacuum lines, fluid hoses, or media routing pipes, check out the available parts in the Mercedes Lines, Hoses and Pipes category.

Additional technical support

When planning work related to the vacuum system and the general efficiency of the power unit, it is worth paying attention to related installations, such as the exhaust system or elements affecting exhaust gas flow. If you want to expand your knowledge on component selection and the use of used parts in modern cars, check out the article Performance exhaust system: used manifolds and sports catalytic converters on the road, where you will find practical tips on working with components in premium brand vehicles.