Mercedes-Benz W163 ML 270 CDI OM612 EGR Cooler Pre-Heater Hose A6122031482

Mercedes-Benz W163 ML 270 CDI OM612 EGR Cooler Pre-Heater Hose for the Mercedes-Benz ML-Class W163 270 CDI with the OM612 engine is an original exhaust gas cooling system component designed to work with the EGR cooler. This used hose from this category ensures proper routing and heating of the working medium, which supports stable diesel engine operation and reduces the risk of leaks in the EGR area.

Specifications and technical data

• SKU: A6122031482
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6122031482
• Substitutable numbers: A6122031482, A 612 203 14 82, BG
• Category: Hoses, Lines & Pipes

Purpose and function in the EGR system

The described hose belongs to the Hoses, pipes and tubes category and is a component of the coolant circuit that works with the EGR cooler in the OM612 unit. Its tasks include:

• a stable connection between the EGR cooler and the rest of the engine cooling system,
• ensuring proper medium flow under variable thermal loads,
• maintaining tightness in areas subject to high temperatures and vibrations.

Thanks to its proper shape and fit to factory connectors, the hose supports the correct operation of the exhaust gas recirculation, which translates into stable engine performance parameters and compliance with the manufacturer's original specifications.

Compatibility and fit for Mercedes-Benz

The component was designed specifically for Mercedes ML-Class W163 270 CDI models with the OM612 engine, which means a perfect fit for the factory exhaust gas cooling system. The original geometry of the connections and hose routing minimizes the risk of installation stress, thereby reducing the possibility of future leaks.

The product has a dedicated OEM part number and associated replacement numbers, which facilitates verification of compatibility with a specific vehicle configuration. This allows for precise selection of the hose for the existing EGR cooler and avoids installation issues.

Characteristics of the used hose

The offered hose is a used part, sourced from the dismantling of a Mercedes vehicle. Such components are often chosen for maintenance repairs when the priority is to maintain the original system design while optimizing costs.

Compared to aftermarket replacements, the original hose from this group usually features better fitment to factory brackets and routings, which facilitates installation and limits the need for additional modifications. This solution is particularly beneficial when servicing the EGR system, where tightness and proper hose positioning are essential for the durability of the entire system.

Benefits of using an original EGR hose

Using an original hose in the EGR exhaust gas cooling system of a Mercedes ML 270 CDI allows you to:

• maintain the factory configuration of the exhaust gas cooling system,
• reduce the risk of leaks in connection areas,
• reduce installation time thanks to proper fitment,
• maintain predictable engine performance parameters regarding temperature and emissions.

For workshops and individual users, this means stable and repeatable repair quality without the need to experiment with unreliable aftermarket replacements.

Related hoses, pipes and tubes for Mercedes

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 coolant hoses, vacuum hoses, or cooling system pipes, check the available parts in the Mercedes hoses, pipes and tubes category.

Additional technical materials

If you are interested in the subject of safe tuning and selecting used components, it is worth reading the guide on modifying turbocharged units – you will find practical tips in the article 2.5 TFSI DAZA – how to safely increase the power of an Audi RS3 by buying used turbochargers.