There can be many causes for vehicle overheating. One of the main reasons for this is the hot climate, which can cause vehicle overheating. Since Australia is entering the winter season, there will be lower cases of vehicle overheating compared to the hot summer season. However, vehicle owners may still face vehicle overheating issues and in this article, we have tried to highlight some of the common causes for it in Australian vehicles.

 

 

Why is engine temperature maintenance important in any vehicle?

 

Keeping the engine at the right temperature is very important. If it gets too hot, your car's engine can overheat and can cause serious damage. On the other hand, if it's too cold, the engine won't work well, causing more wear and tear, more pollution and using more fuel. That's why the thermostat is important—it helps keep the temperature balanced.

 

Common reasons for engine overheating

 

Let’s delve into understanding some of the common reasons for car engine overheating. 

 

1. Lower coolant levels

One of the key factors in preventing engine overheating is maintaining the right coolant level. Coolant, also known as antifreeze, plays a crucial role in regulating your engine's temperature. A low coolant level can be a result of leaks, evaporation or neglecting regular maintenance.

Some of the major reasons for low car coolant levels include:

• System leaks
• System blockages
• System air 

Solution: If you own a Mazda car and another vehicle, it is important to regularly check the coolant level of your Mazda. If you notice a sudden drop in coolant levels, it's crucial to have your system checked for leaks and promptly repair them, or consider getting Mazda car services.

 

2. Issues with radiator

The radiator plays an important role in cooling down the heat from the engine coolant. Issues like clogs, leaks or a damaged radiator can hinder its function, which may in turn, result in an overheating engine. Accumulation of debris in the radiator is a major issue that hampers its functioning and reduces its cooling capacity. 

 

Common radiator problems include:

• Leaks: The radiator or its hoses may leak. Radiator hoses should be regularly replaced as part of standard maintenance.
• Build-up: Gunk and mineral deposits can accumulate in the radiator, blocking coolant from reaching the engine.
• Rust: Radiators can rust, which is usually visible during a visual inspection.

Solution: Flush the radiator regularly to remove any accumulated debris. If the radiator is damaged, you may have to have it repaired or replaced.

 

3. Faulty thermostat

The thermostat controls and regulates the flow of coolant through the engine. If it gets stuck closed, the engine can overheat. A malfunction in the thermostat, either by getting stuck or jammed in the closed position, can cause the engine to overheat. However, if it gets stuck or jammed in the open position, it can prevent the engine from its optimal performance and obtaining an ideal temperature. 

 

A car's thermostat can have issues due to:

• Age and Wear: Over time, the thermostat's parts can wear out, making it less effective.
• Corrosion and Build-up: Rust and debris can gather, making it harder for the thermostat to move.
• Gasket Failure: The thermostat's gasket can fail, causing coolant leaks and messing with engine temperature control.

Solution: Replace the thermostat if it's not working properly. Regular maintenance can help catch these issues early.

 

4. Malfunctioning water pump

The water pump circulates the engine coolant through the radiator and engine. If it stops working or the circulation is hampered for any reason, it can lead to engine overheating.

Solution: Replace a faulty water pump right away. Check the pump regularly during maintenance to spot problems early, which will save you last-minute troubles. 

 

5. Low oil

Motor oil keeps your car cool by reducing friction. If the oil level is too low, friction increases and can cause your car to overheat.

Reasons for low oil levels:

• Leaks
• Engine problems: Sometimes, the engine burns oil because its seals are worn or damaged. Severe leaks leave black spots or puddles, but smaller leaks may not be noticeable.

 

Faulty Hoses or Belts 
Cars have belts and hoses that help their systems, including the cooling system, run smoothly.

Belts power the fans, air conditioning, and charging system. Heater and radiator hoses carry coolant to and from the radiator, engine, and heater. The cooling system might not work properly if these parts are worn or damaged.
 

Common FAQs 

• What Can Happen When Your Car Overheats?

Car engines are tough, but they, too, have limits. If you don't take care of your car and ignore warning signs, an overheated engine can cause a blown head gasket, which is expensive to fix or even make the engine seize up completely.

 

• How does a bad water pump make your vehicle’s engine overheat?

The water pump moves coolant around the engine to keep it cool. If the water pump isn't working right, it can't move enough coolant, which means the engine won't cool down properly and could end up overheating.

 

• What should you do if your engine gets too hot? 

If your engine starts to overheat, act fast. Pull over safely, turn off the engine and let it cool down. Check the coolant level, radiator hoses and radiator for leaks or blockages. If needed, get help from a professional mechanics to find and fix what's causing the overheating.

 

• How do you know if your engine is overheating?

Yes, there are signs to watch for. The temperature gauge might go above normal; you might see steam or smoke from the engine or smell coolant. You could also notice the engine not working right or leaking coolant. If you see any of these signs, it's important to fix the problem fast to avoid more damage.

 

Take Away
Dealing with an overheating engine is a serious and expensive problem for any Peugeot car or any other car owner. However, by knowing what causes engine overheating, spotting the signs early and keeping up with regular maintenance, including servicing at a reputable Peugeot service in Melbourne, you can ensure your engine stays in great shape and your vehicle lasts longer