Radiator Cooling Fan Assembly ?️

This cooling fan unit is a key part of the engine temperature control system. It is needed when natural airflow is not enough—especially in traffic, hot weather, or when the A/C is running. By pulling air through the radiator, it helps the coolant release heat fast and keeps the engine in a safe operating range.

How it works ⚙️

The fan spins behind the radiator to create strong airflow. It is switched on and off by the vehicle’s temperature control logic (sensor/ECU/relay depending on setup). When coolant temperature rises, the fan engages to prevent heat soak and stabilize temps during idle and low-speed driving.

Why replacement matters ✅

A weak or failed fan can’t move enough air, so heat builds up quickly. You may notice rising temperature gauge readings, A/C getting warm at idle, or coolant boiling after shutdown.

If the fan is broken ?

• Engine overheating and possible head gasket damage
• Warped cylinder head from repeated high heat
• A/C performance drops at low speed
• Blown fuses/relays from seized motor or high current draw

Compatible Models ?

• G35
• J30
• Q45
• Fx35/45