Perth’s Hot Summers
As temperatures begin to rise, now is the perfect time to make sure your vehicle is ready for the hotter months ahead—before the height of summer sets in. Perth is well known for its intense summer heat, with prolonged periods of high temperatures that can take a serious toll on your car. Taking the time to check your cooling system and air conditioning now can help you avoid unexpected breakdowns, expensive repairs, and the discomfort of being stuck on the roadside in extreme heat.
How hot weather affects your vehicle
High temperatures place added pressure on many vehicle components, especially the engine and its cooling system. Even under normal conditions, engines produce significant heat. When the outside temperature climbs, the cooling system must work harder to maintain safe operating levels. If any part of the system is worn, leaking, or not working as it should, overheating can happen quickly—particularly in heavy traffic or on longer trips.
Inspecting the cooling system
Before summer arrives, the cooling system should be a top priority. Begin with the radiator, which plays a key role in releasing heat from the engine. Make sure it is clean and free from obstructions such as dirt, leaves, or insects, as blocked airflow is a common cause of overheating in hot conditions.
Next, check the coolant. It should be filled to the correct level in the overflow bottle and look clean and clear. Discoloured, sludgy, or oily coolant can indicate contamination and reduced cooling performance. Low coolant levels can also lead to rapid temperature increases, so topping up or flushing the system when needed is essential.
Radiator and heater hoses also deserve close attention. Look for cracks, bulges, soft spots, or signs of aging. Over time, hoses can weaken and become more prone to failure, especially when exposed to extreme heat. A failed hose can result in sudden coolant loss and immediate engine overheating.
Be alert for any signs of leaks as well. Coolant puddles under the vehicle, residue around hose connections, or a sweet smell after driving can all indicate a leak. Even minor leaks can escalate quickly in hot weather and should be addressed promptly.
Making sure your air conditioning is up to the task
Although your air conditioning system doesn’t directly cool the engine, it’s vital for comfort and concentration during Perth’s hot summers. The system should deliver strong, cold air consistently, including when the car is idling. Weak cooling or warm airflow may signal the need for servicing.
Check visible air conditioning lines and components for wear or damage. Refrigerant leaks are common as systems age and can reduce cooling efficiency while increasing strain on the compressor. Unusual noises, oily residue, or reduced cooling performance are all signs that a professional inspection is needed.
Additional summer checks
While preparing for hot weather, it’s also wise to check engine oil levels, as oil helps manage heat and reduce wear. Battery health is important too, as high temperatures can shorten battery life. Tyre pressures should be monitored regularly, as heat causes air to expand and can lead to overinflation.
Staying ahead of summer breakdowns
A little preventative maintenance before summer can go a long way toward avoiding overheating, mechanical damage, and stressful roadside situations. Regular checks are far more cost-effective than dealing with a breakdown in extreme heat.
If the unexpected does occur and you find yourself stranded on a hot day, assistance is only a phone call away. Contact us on 0499 600 200, and we’ll dispatch a truck as quickly as possible to get you and your vehicle back on the road.