Debunking Myths about Engine Overheating

Overview
- Overheating engines are often misunderstood, with many drivers relying on outdated advice that can worsen the problem. Myths like topping off coolant or blaming the AC overlook deeper issues like faulty parts, low coolant, or weak batteries.
- Batteries also play a key role in powering fans and sensors that regulate engine temperature. To stay safe and avoid costly repairs, always act fast. With the Motolite RES-Q app, help is available 24/7, giving drivers peace of mind on the road.
An overheating engine is always a cause of concern. Yet many drivers rely on outdated advice and hearsay when dealing with it, which can turn a minor issue into a major repair. By debunking myths surrounding engine overheating, we make you aware of the fixes that do more harm than good.
This issue can happen when you least expect it, but staying calm and prepared makes all the difference. With the Motolite RES-Q app, you’ll have 24/7 roadside assistance at your fingertips, whether it’s engine trouble, a weak battery, or a flat tire.
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Understanding the Basics of Engine Overheating

Every time you drive, your engine produces heat from fuel combustion and friction between moving parts. To prevent the engine from overheating, your car relies on a cooling system made up of key components like the radiator, coolant, water pump, thermostat, and cooling fans.
This system circulates coolant to absorb heat from the engine and release it through the radiator. If any part of this system leaks, malfunctions, or gets blocked, heat can't escape properly, leading to overheating. And yes, even brand-new cars can overheat if, for example, there's a factory defect, a stuck thermostat, or low coolant from improper pre-delivery inspection.
Common Myths About Fixing and Preventing Overheating
When it comes to engine overheating, many drivers rely on advice passed down from friends or online forums. Unfortunately, some of these “fixes” are myths that can do more harm than good. Let’s clear up the most common misconceptions so you’ll know the right way to protect your engine.
Topping Off The Coolant Is Enough To Fix Overheating
Simply adding coolant may seem like a quick solution, but it won’t fix the underlying issue. Overheating usually stems from leaks, blockages, or failing parts like the water pump or thermostat. If you’re filling it up frequently, the system likely has a problem that needs repair, not just a refill.
Overheating Only Happens When You Run The AC Too Long
Many assume that running the air conditioner on full blast is to blame for an overheating engine. But in truth, if your cooling system is healthy, it should be able to handle the added load. Faulty fans, clogged radiators, or low coolant levels are often to blame, and they can affect your engine whether or not the AC is on.
Pouring Cold Water On The Radiator Will Cool The Engine Faster
Pouring cold water directly onto a hot radiator or engine can cause thermal shock, which may crack engine components or warp metal parts. Modern radiators are pressurized systems, and a sudden temperature change can lead to expensive damage.
Instead, turn off the engine, pop the hood to allow heat to escape, and wait for the engine to cool naturally. If you’re unsure, let professionals handle it.
Engine Overheating Is Only A Problem In Older Vehicles
Even brand-new vehicles can overheat. Factory defects, improper coolant fill levels, electronic thermostat failure, or even a poorly installed radiator cap can cause newer cars to overheat just like older ones. Overheating is less about vehicle age and more about the condition and functionality of the cooling system.
You Can Keep Driving If You’re “Almost Home”
Many drivers think they can “push through” overheating if they’re only a few minutes away. But even short distances can do serious damage. The hotter your engine gets, the more likely it is to warp components, blow a gasket, or crack the cylinder head.
If your temperature warning light comes on, pull over immediately and let the engine cool. Driving further could turn a minor fix into a major repair.
Batteries Have Nothing To Do With Overheating
While your battery doesn't cool your engine directly, it's still essential to your car’s cooling system. Your battery powers the cooling fans, sensors, and electronic controls that manage engine temperature.
If your battery is weak or failing, these components may not work properly, especially in traffic or during long drives in the Philippine heat, raising the risk of overheating. That’s why it’s crucial to ensure your battery is always in top condition.
We at Motolite offer reliable battery replacements and 24/7 roadside help through our RES-Q app. If you suspect a battery issue, don’t wait, have it checked and be replaced through our Motolite Express Hatid roadside services.
What Should You Do If Your Engine Overheats?

If you notice signs of overheating, like the temperature gauge rising or steam from the hood, follow these steps to protect your car and your safety:
Pull over safely and turn off the engine immediately.
Open the hood carefully to allow heat to dissipate.
If you're out on the road, use your early warning devices.
Call for help using the Motolite RES-Q App for expert roadside assistance.
Do not remove the radiator cap while the engine is hot. It’s pressurized and could cause serious burns.
Check the coolant level only after the engine has cooled. If it’s low, you may add coolant if you have checked that there are no leaks.
Schedule a full system check for your vehicle.
Key Takeaway
When it comes to engine care, debunking myths about engines overheating is more than just setting the record straight; it’s about protecting your car from costly repairs.
Don’t let misinformation steer you into making risky choices. If you suspect a battery-related issue or need urgent roadside help, we at Motolite are just a tap away through the RES-Q app. Whether it’s battery delivery, diagnostics, or 24/7 assistance, we’ve got your back. Contact us today to keep your engine (and your ride) running cool and smooth.


