Stop, Cool down, and Wait: Taking Care of the Overheated Engine

The first indication that you will get that you car engine is overheating will usually be when the water temperature gauge starts to rise above its normal level and towards the red zone. This will normally be followed by an overheat warning light illuminating on the dashboard and may even be accompanied by steam rising from under the bonnet. It is important to stop if you have any of these warning signs, as continuing to drive on could cause severe and expensive damage to the engine.

At any time that you see a warning light that your engine is running hot you should pull of the road and turn the car off. You should not continue to a service station or mechanics garage. The injury to your car will be a lot worse, especially to the cylinder head. The cylinder head can warp or crack under increased temperatures, and is very costly to swap out.

Once safely parked on the side of the road, switch on your hazard lights to warn any following drivers of your problem. Providing that there is no fire present you can open the bonnet, to give the engine a chance to cool down, however do not be tempted to touch any of the engine parts at this point, as it is very likely that you will be burnt.

It can take a significant amount of time for the engine to cool down, so you should be prepared for a long wait. If the car overheats during the night hours make sure your sidelights are lit and that you turn the headlights on so you can see what you are doing around the engine.

After the engine has decreased in temperature the first thing to check is the coolant. This is usually the first fluid to be low when your car overheats. By adding water to the radiator you are able to give it fluid. The water should not be too cold as it can crack the container the fluid is held in. Water is not the typical fluid to use, but in an emergency it works fine. The water will dilute the coolant called antifreeze. You will need to have the system flushed by a mechanic before winter to avoid freezing the coolant.

Even if the engine has cooled down the coolant may still be hot and undoing the coolant filler cap can release scolding hot steam onto your hand. Therefore wait until the radiator is cool enough to touch before opening the coolant filler cap and cover your hand with a rag for added protection.

Reaching out at arms length to fill the container will help stop you from being hit with hot coolant. You will want to stop and check the levels of the reservoir to ensure you are not over filling it. There is a maximum and minimum line on the container. You will need to check that the temperature gauge is back to normal levels before driving again.

Remember that whilst your car is safe to drive again, there is an underlying problem that caused the overheating, so avoid a long journey and take it to a suitable garage to be checked out as soon as possible. However, if the engine overheats again, shortly after you have set off, you need to pull over and call a roadside recovery service as you have a serious problem that will require the services of a garage to fix it.