Original BMW Radiators

As one of the most important parts beneath the hood of your BMW, the radiator keeps your engine running cool and smoothly. Here's how it functions.

How a Radiator Works

The radiator is located at the front of most cars and holds the shape of a metal square with a core assemble between the inlet and outlet tanks on both sides of the square. It uses a water pump to push coolant through the engine where the liquid absorbs excess engine heat. It is then returned to the radiator core where the heat is dispersed and the coolant returns to a normal temperature.

A simple process that is designed to keep your engine from overheating. However, over time, your radiator can see normal wear and tear, or damage from road debris. Symptoms of a failing radiator will most likely entail a check engine warning light on the dash, steam coming from beneath the hood, engine stalling, or decreased acceleration.

If you come across radiator issues, do not open the radiator cap. It is under pressure and usually boiling hot if you open it when the engine has been running. It is wise to let your car cool off before conducting an inspection. If you see damage to the radiator's core fins or notice a coolant leak, seek an immediate replacement.

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