Mercedes W164 Cooling Radiator Petrol Engine Radiator Fan A1645000493

Mercedes W164 Cooling Radiator Petrol Engine Radiator Fan is a component from the Fans and fan shrouds group, designed for the cooling system in vehicles with a petrol engine. It provides stable radiator support, which translates into a safe operating temperature for the power unit and predictable vehicle behavior in demanding road conditions.

Specifications and technical data

• SKU: A1645000493
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645000493
• Substitutable numbers: A1645000493, A 164 500 04 93
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Fan & Shroud Assemblies

Purpose and function in the cooling system

The presented fan is dedicated to the W164 series models and works with the petrol engine radiator, being responsible for forced airflow through the radiator core. Its placement at the rear of the cooling zone allows for effective heat dissipation from the coolant circuit, which reduces the risk of engine overheating during city driving, in traffic jams, and under higher loads.

Thanks to the proper blade geometry and compatibility with the factory mounting system, the fan maintains a stable airflow, supporting the operation of the thermostat, temperature sensors, and engine control unit. This is particularly important in petrol cars, where the operating temperature is precisely controlled by the vehicle's electronics.

Benefits of using an original fan

Using an original solution from the Fans and fan shrouds group ensures proper fitment to the front panel structure, radiator, and air guide shrouds. The appropriate rotor diameter and factory mounting points reduce vibrations, noise, and mechanical loads transferred to the radiator and adjacent components.

• maintenance of factory cooling parameters for the petrol engine,
• proper cooperation with the fan control system,
• reduced risk of localized overheating in the radiator area,
• easier diagnostics and service due to compliance with the factory design.

A component from this group is particularly important during periods of high ambient temperatures, when the cooling system operates under higher loads and requires efficient, stable airflow.

Installation and operational characteristics

The fan is designed for installation at the rear of the radiator zone, which facilitates integration with the existing housing and air ducts. The design intended for petrol units allows for correct cooperation with factory sensors and controls, without the need for electrical or mechanical modifications.

A used component of this type, after proper verification and installation, is a reasonable way to reduce service costs while maintaining the appropriate quality of the cooling system's operation. A properly selected fan helps maintain a stable coolant temperature, which promotes the durability of seals, the cylinder head, and engine accessories.

Technical support and knowledge about the cooling system

If you want to better understand how high temperatures affect the operation of the radiator and fan, and how to reasonably use used cooling system components, check out our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. It is a practical source of knowledge that will help you choose a service strategy in terms of durability and costs.

Related Mercedes cooling system components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional fans, fan shrouds, or air guide covers, check the available parts in the Mercedes fans and fan shrouds category.