Mercedes ML W164 GL X164 Intercooler Pipe Hose Line 420 CDI V8 OM629 A1645281782

Mercedes ML W164 GL X164 Intercooler Pipe Hose Line is an original turbocharging system component, designed specifically for the V8 OM629 engine. Thanks to its factory-spec fitment, it ensures stable airflow to the intercooler, which supports the proper operation of the power unit and reduces boost pressure drops.

Specifications and technical data

• SKU: A1645281782
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645281782
• Substitutable numbers: A1645281782, A 164 528 17 82
• Category: Hoses, Lines & Pipes

Purpose and function in the turbocharging system

This hose is a component of the intake system in Mercedes ML W164 and GL X164 models with the 420 CDI V8 OM629 engine. It is responsible for the precise routing of compressed air between the turbocharger and the intercooler, which directly affects:

• maintaining proper boost pressure across the entire RPM range,
• stable intake air temperature,
• smooth operation of the V8 diesel engine,
• reducing the risk of power loss due to leaks.

Thanks to a design tailored to the specific engine unit, the hose works with factory mounts and other intake system components, which facilitates installation and maintenance.

Construction and fitment for Mercedes ML W164 / GL X164

The hose belongs to the Hoses, pipes and lines group, which means it has been designed to operate under variable pressure and elevated temperatures. The shape and connection diameters are adapted to the stock ports on the OM629 engine, ensuring that the component:

• fits the factory system without the need for modifications,
• maintains connection tightness when installed correctly,
• allows for the original routing of hoses in the engine bay.

Such fitment reduces the risk of interference with other components and facilitates subsequent service procedures.

Condition, origin, and benefits of using a used part

The item comes from disassembly and is offered as a used Mercedes brand part. For many users, this is a reasonable compromise between cost and functionality, especially in the case of specialized turbocharging system components. Using an original hose from the secondary market allows you to:

• maintain the factory characteristics of the intake system,
• avoid fitment issues common with aftermarket replacements,
• reduce repair costs compared to a new part from an authorized dealership.

Before installation, a standard check of tightness and the condition of the connection surfaces is recommended to fully utilize the potential of this part.

Why it is worth using an original intercooler hose

In V8 diesel engines, such as the OM629, the turbocharging system operates under significant load. Using an original intercooler hose helps maintain:

• stable boost parameters during dynamic driving,
• proper cooperation with the stock intercooler and turbochargers,
• structural consistency of the entire intake system.

This solution is particularly recommended when replacing a damaged or leaking hose, where the priority is to maintain the vehicle's factory configuration.

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 intake hoses, vacuum lines, or charge air cooling pipes, check the available parts in the Mercedes Hoses, pipes and lines category.

Additionally, if during the intake system service you notice disturbing noises from the chassis or play in the suspension components, it is worth checking out the guide describing typical symptoms and repair options for the suspension – you will find practical tips in the article Suspension knocking? Discover a clever way to restore factory steering precision without spending a fortune at the service center.