Intercooler Mercedes R170 M111 Charge Air Cooler Unit Radiator A1705000300

The Mercedes R170 M111 Intercooler Air Cooler is an original intake system component designed for gasoline engines, ensuring stable cooling of compressed air. Thanks to its factory design for the Mercedes brand, it maintains proper flow and pressure drop parameters, which translates to predictable engine operation. This is a solution for users looking for parts with preserved geometry and compatibility with factory equipment.

Specifications and technical data

• SKU: A1705000300
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1705000300
• Substitutable numbers: A1705000300, A 170 500 03 00
• Fuel type: Petrol
• Category: Intercoolers

Purpose and Role in the Turbocharging System

The intercooler air cooler in R170 models with the M111 engine is responsible for lowering the temperature of air compressed by the turbocharging system. Cooled air has higher density, which promotes stable cylinder filling and maintains repeatable gasoline engine operating parameters. A properly selected intercooler reduces the risk of knocking, supports the preservation of stock power, and helps maintain even thermal load on the engine.

Construction and Fitment for Mercedes R170 M111

The intercooler in question has been designed as a factory intake system component for Mercedes R170 series vehicles with the M111 gasoline engine. The design anticipates cooperation with stock pressure lines, mounts, and covers, which facilitates installation without the need for body modifications or additional adjustments. The factory geometry of the flow channels is preserved, allowing for operating parameters close to the original manufacturer's configuration.

As a component from the Charge Air Coolers group, the intercooler operates between the compressor and the intake manifold, stabilizing air temperature across a wide range of loads. This solution promotes smooth engine operation in urban conditions, on highways, and during dynamic acceleration.

Benefits of Using an Original Air Cooler

Using a factory intercooler to replace a worn or leaking component allows for the restoration of correct intake system operating conditions. Key benefits include:

• maintaining stock air flow and pressure drop parameters,
• reducing the risk of turbocharging air overheating,
• stable gasoline engine operation across the full RPM range,
• compatibility with factory mounts and equipment.

For users planning comprehensive diagnostics or upgrades to the cooling and intake system, a guide might be useful – you can find more information on the impact of coolers on engine durability in the article Engine Cooling System – Overheating, Repair, and Used Coolers.

Characteristics of a Used Part

The offered air cooler is a used component, meaning it comes from a dismantled vehicle and has been in use. This type of part is a good choice for drivers who want to maintain the factory specification of their intake system at a reasonable service cost. Before installation, a standard check of its tightness, the condition of the pipes, and working surfaces is recommended to ensure proper cooperation with other system components.

Application in Service and Upgrades

The Mercedes R170 M111 intercooler is suitable for both typical replacement of a worn-out part and for broader service work related to the turbocharging and air cooling system. It can be used in daily driven vehicles where predictability and compliance with factory manufacturer's specifications are important. In case of extensive repairs, it is worth considering a simultaneous check of pressure lines, clamps, and mounting elements to avoid leaks and performance drops.