Intercooler Mercedes ML W166 Diesel OM642 Charge Air Cooler Radiator A0995002800

Visual condition of the part

The product shows signs of use visible in the photos.

Intercooler Mercedes ML W166 Diesel OM642 Charge Air Cooler Radiator is a factory-original forced induction system component designed for installation in the front section of the vehicle. Thanks to its design, it supports the stable operation of the diesel engine by improving the thermal conditions of the compressed intake air. This is a solution for users who expect consistency with factory specifications and predictable performance parameters of the power unit.

Specifications and technical data

• SKU: A0995002800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0995002800
• Substitutable numbers: A0995002800, A 099 500 28 00
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Intercoolers

Function of the charge air cooler in the Mercedes ML W166 with the OM642 Diesel engine

The intercooler in a diesel engine's forced induction system is responsible for lowering the temperature of the compressed air before it is delivered to the intake manifold. A lower intake air charge temperature translates into:

• more stable boost pressure across the entire RPM range,
• more consistent engine performance,
• reduced risk of engine knocking and localized overheating,
• better operating conditions for turbocharger components.

In the case of the OM642 Diesel unit, a properly functioning charge air cooler is essential for maintaining the correct air-fuel mixture, proper operation of the fuel injection system, and preserving engine refinement under load.

Placement and integration with the intake system

The presented intercooler is designed for installation in the front zone of the vehicle, where it has direct access to the airflow passing over the body. This positioning promotes efficient heat dissipation and facilitates integration with factory intake hoses and mounting elements.

This type of solution works with the diesel engine's forced induction system, creating a coherent airflow path from the turbocharger to the intake manifold. Proper fitment to the Mercedes ML W166 structure minimizes the need for modifications and allows for the preservation of the original flow geometry.

Product characteristics and application

The offered charge air cooler belongs to the Intercoolers group, meaning it acts as an intermediate component between the compressor and the intake system. It is intended for Mercedes vehicles with diesel engines where maintaining stable thermal parameters of the boost air is required.

The product comes from the used components segment, which allows for an economical repair of the forced induction system while maintaining the original design. For many users, this is a beneficial solution when they want to preserve the factory configuration of the vehicle while reducing service costs.

Benefits of using an original charge air cooler

Using a factory intercooler in a Mercedes ML W166 with a diesel engine ensures:

• compatibility with the intake system – perfect fit for stock hoses, mounts, and covers,
• predictable engine behavior under load – in line with the vehicle manufacturer's specifications,
• maintenance of proper boost air temperatures, which promotes engine durability,
• the ability to restore proper forced induction system operation after a failure or a drop in the existing cooler's efficiency.

For users operating the car in various conditions – from city driving to long-distance travel – a functional intercooler is a key element influencing smooth engine operation and the stability of operating parameters.

Technical support and additional materials

To better understand the impact of the cooling system and related components on engine durability, it is worth checking out our guide: Engine cooling system – overheating, repair, and used radiators. The article discusses the relationship between engine operating temperature and component lifespan, which helps in planning repairs and inspections consciously.

If you are planning a comprehensive repair or upgrade of the forced induction area in your Mercedes and need other parts from the same group, such as additional charge air coolers, intake hoses, or mounting hardware, check out the available parts in the Mercedes Intercoolers category.