Keeping your cool: navigating car care in Scotland's rare heatwaves
In Scotland, we typically reserve our worries for rainy days, not heat waves, but when the sun does decide to make an appearance, it can take us, and our vehicles, by surprise.
High temperatures can affect vehicle performance, comfort, and safety. Here’s a comprehensive guide to what to be aware of during extreme heat, including signs of overheating, air conditioning issues, potential heat damage to parts and seals, essential safety measures, and the important reminder never to leave pets in hot cars.
Signs your car is overheating.
Overheating is a serious issue that can lead to engine damage. Here are the signs to look out for and tips to prevent it:
Pay attention to...
Temperature gauge
Keep an eye on the engine temperature gauge. If it moves into the red, stop the vehicle immediately.
Warning lights
Look for the 'Check Engine' or 'Temperature Warning' lights on your dashboard.
Steam or smoke
If you notice steam rising from under the bonnet or smoke, your engine is likely hot and needs attention.
Unusual noises
Listen for knocking, rattling, or other strange noises, which may indicate engine distress.
Loss of power
If your vehicle struggles to accelerate or perform normally, it may be overheating.
Top tips...
Regular maintenance
Ensure regular oil changes and coolant checks. Old oil or low coolant levels can lead to overheating.
Check coolant levels
Regularly inspect the coolant reservoir. It should be filled to the appropriate level per the manufacturer's specifications.
Radiator checks
Inspect the radiator for leaks, blockages, or corrosion to ensure proper function.
Fan operation
Make sure the cooling fan engages when the engine temperature rises to prevent overheating.
Turn on the heater
When you turn the heat to max, the blower fan pulls heat from the engine and vents it into the car, acting as an escape route for trapped heat.
Air conditioning issues.
Extreme heat can put a strain on your vehicle’s air conditioning system.
Be vigilant for...
Weak airflow
If the air blowing from the vents is weak, it might indicate a clogged filter or failing compressor.
Unusual noises
Listen for hissing, clicking, or buzzing sounds from the A/C unit, which can suggest malfunctioning components.
Poor cooling
If the A/C system isn’t cooling effectively, it may need a refrigerant refill or repair.
Top tips...
Check A/C Filter
Replace the cabin air filter if it’s clogged to improve airflow and air quality.
Refrigerant Recharge
If the A/C isn’t cooling effectively, have it checked and recharged at AD Autocare.
Book your car in
For persistent issues, book your car in so we can identify and fix underlying problems, such as compressor or condenser failures.
Heat damage to parts and seals.
Heat can cause wear and tear on various car parts.
Be aware of the following:
Tyres
High temperatures can cause over-inflation, leading to blowouts. Regularly check tyre pressure and tread condition.
Battery
Heat can accelerate chemical reactions in the battery, reducing its lifespan. Regularly inspect battery terminals for corrosion and ensure a secure connection.
Plastics and Rubber Seals
Excessive heat can degrade rubber seals and plastic parts. Watch for cracks or brittleness, particularly in hoses and belts.
Oil Breakdown
The engine oil can thin out in extreme heat, reducing its effectiveness. Regular oil changes are essential to maintain proper lubrication.
Never leave pets in a hot car.
A critical safety reminder: never leave pets in a hot car, even for a short time.
Here's why ...
Rapid temperature increase
Inside a parked car, temperatures can soar to dangerous levels within minutes, even on relatively mild days.
Heatstroke risk
Pets can suffer from heatstroke, which can lead to serious health issues or even death. Signs include excessive panting, drooling, lethargy, and vomiting.
Legal consequences
Leaving a pet in a hot car could also lead to legal consequences. Many areas have laws against this practice, allowing authorities to intervene if they observe a pet in distress.
Alternatives
If you need to run errands, consider leaving your pet at home or taking them with you where it’s safe to do so.
Safety measures when your car is overheating.
If your car begins to overheat, keep these safety and emergency preparation tips in mind:
Safety first ...
Pull over safely
Find a safe location to pull over immediately. Turn off the engine and allow it to cool down.
Open the bonnet
Once the engine has cooled for a few minutes, open the bonnet to facilitate cooling, but avoid direct contact with hot surfaces.
Do not open the radiator cap
Opening a hot radiator cap can cause hot coolant to spray out. Wait until the engine cools completely.
Check coolant level
Once cool, check the coolant level. If it’s low, add a 50/50 mix of coolant and water.
Evaluate the situation
Assess whether it’s safe to continue driving. If overheating persists, you may need to call for roadside assistance.
Keep these items in your vehicle ...
Coolant and water
Carry a bottle of coolant and plain water for top-ups.
Basic tool kit
Include a wrench, screwdrivers, and pliers for minor repairs.
First aid kit
Have a basic first aid kit for any emergencies.
Reflective triangle
These can alert other drivers if you break down.
Torch
A torch is useful for nighttime emergencies.
Tyre repair kit
Carry a tyre inflator or repair kit in case of a flat tyre.
Being mindful of these factors during a heat wave can help prevent significant issues and ensure your vehicle remains safe and functional. Regular maintenance, monitoring temperature gauges, addressing air conditioning and part degradation, following safety protocols, and ensuring your pets' safety can keep you comfortable and safe on the road whether you're popping to the shops, or doing the North Coast 500 .
Always consult a professional mechanic if you notice concerning signs, as prompt attention can save you from costly repairs down the line.
For drivers in Ayr seeking a reliable garage, Andrew Dodds Autocare is a trusted choice. Committed to ensuring your car is safe, roadworthy, and legal, we offer a range of services including MOT testing, servicing, repairs, and expert advice.
Give us a call on 01292 299 023 to book your car in.
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