Mercedes W164 X164 Intercooler Charge Air Cooler Radiator 4.0 CDI A1645000200

Mercedes W164 X164 Intercooler Charge Air Cooler Radiator 4.0 CDI is an original intercooler designed for 4.0 CDI diesel engines in Mercedes SUV class vehicles. This intake system component is responsible for stably reducing the temperature of compressed air, which translates into better engine refinement and more predictable performance. Thanks to its factory design, it ensures proper cooperation with the turbocharger and engine electronics, without the need for any system modifications.

Specifications and technical data

• SKU: A1645000200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645000200
• Substitutable numbers: A1645000200, A 164 500 02 00, A 1645000000, A 164 500 00 00
• Fuel type: Diesel
• Category: Intercoolers

Function and role of the intercooler in the Mercedes 4.0 CDI

The intercooler in the 4.0 CDI diesel engine is responsible for the efficient dissipation of heat from the air compressed by the turbocharger. Cooled air has a higher density, which:

• improves cylinder filling and torque stability,
• supports even combustion of the mixture in the diesel unit,
• reduces the risk of overheating auxiliary components,
• positively affects the durability of the turbocharger and fuel injection system.

For heavy W164 and X164 series SUVs, which often operate under high loads, a functional intercooler is crucial for maintaining a stable operating temperature of the diesel engine across a wide range of road conditions.

Benefits of using an original intercooler

The original component from the Mercedes brand ensures that factory airflow and cooling parameters are maintained. In practice, this means:

• precise fitment to mounts and intake system hoses,
• compatibility with factory sensors and engine management,
• no need for system modifications during replacement,
• maintenance of the 4.0 CDI unit's performance characteristics as intended by the manufacturer.

For the user, this translates into reliable, predictable powertrain operation and a reduction in the risk of leaks or power drops resulting from ill-fitting aftermarket replacements.

Characteristics of the used product

The presented intercooler is a secondary market part in Used condition, which allows for a significant reduction in repair costs while maintaining the original design. A used intercooler is a particularly attractive solution in the case of:

• accident repairs where the front of the vehicle has been damaged,
• operation in difficult conditions (towing trailers, off-road driving),
• the need for a quick component replacement while maintaining a reasonable budget.

Choosing a verified used part allows you to maintain a favorable cost-to-effect ratio, especially in high-mileage vehicles where investing in a new component is not always economically justified.

Intended for diesel engines

The intercooler has been designed to work with a Diesel engine, which is significant for airflow characteristics and resistance to thermal loads. Diesel engines generate high boost pressures and operate in demanding conditions, which is why:

• the intercooler must ensure proper system airtightness,
• the construction should be resistant to long-term vibrations and temperature changes,
• air channel cross-sections are adapted to the specifics of the 4.0 CDI unit.

Thanks to this, stability of boost parameters is maintained, which influences engine refinement, dynamics, and fuel consumption in daily use.

Technical support and related content

If you are planning comprehensive maintenance of the charge air cooling system in your Mercedes and want to better understand the impact of temperature on component durability, check out our guide: Summer heat and the cooling system – how used radiators and fans help reduce costs. You will find practical tips there regarding the operation and selection of secondary market parts.

If you are also looking for other items from the Intercoolers group matched to different models, use our product category: see available intercoolers for passenger cars. This makes it easy to compare available solutions and choose the component suitable for your vehicle.