2020 Subaru BRZ Is Overheating

Common Causes of Overheating in Your 2020 Subaru BRZ and How to Resolve Them Effectively

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
24% chance it's the
Thermostat
0%
41% chance it's the
Coolant leak (water pump, radiator, hose etc.)
0%
32% chance it's the
Radiator Fan
0%
3% chance it's
Something else
The most common reasons a 2020 Subaru BRZ is overheating are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.
  • Thermostat: A faulty thermostat can cause the engine to overheat or run too cool by failing to regulate the flow of coolant properly.
  • Coolant leak (water pump, radiator, hose etc.): A coolant leak can occur due to a damaged hose, a failing water pump, or a compromised radiator, leading to loss of coolant and potential engine overheating.
  • Radiator Fan: A faulty radiator fan can lead to engine overheating due to insufficient airflow over the radiator.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take for an overheating 2020 Subaru BRZ?

When faced with an overheating 2020 Subaru BRZ, it's essential to adopt a methodical diagnostic approach to identify the root cause effectively. Begin by checking the coolant level in the radiator, as insufficient coolant can lead to overheating. If the coolant is low, top it up and monitor for any leaks in the cooling system, particularly around hoses, the radiator, and the water pump, as these can significantly impact coolant levels. Next, inspect the radiator cap for any signs of damage; a faulty cap can disrupt the pressure needed for the cooling system to function properly. Ensure that the cooling fans are operational, as they play a crucial role in maintaining airflow through the radiator. Additionally, test the thermostat to confirm it is opening and closing as it should, since a malfunction here can prevent proper coolant circulation. Don’t overlook the water pump; check for leaks or signs of failure, as it is vital for circulating coolant throughout the engine. Finally, keep an eye on the temperature gauge on your dashboard; if it indicates higher than normal temperatures, it’s a clear sign that further investigation is needed. By following these steps, you can systematically diagnose and address the overheating issue in your Subaru BRZ, potentially saving time and repair costs.

What are the common problems that could cause a 2020 Subaru BRZ to overheat?

When diagnosing overheating issues in a 2020 Subaru BRZ, it's crucial to consider several common problems that could be affecting the vehicle's cooling system. One of the primary culprits is low coolant levels, which can occur due to evaporation or leaks, leading to insufficient cooling of the engine. Additionally, leaks in the cooling system—whether from hoses, the radiator, or the water pump—can significantly reduce coolant levels and contribute to overheating. Another potential issue is a faulty thermostat, which may fail to open at the correct temperature, preventing coolant from circulating properly. A clogged radiator can also impede the cooling process, as debris and sediment can block the flow of coolant. Furthermore, if the cooling fan is malfunctioning, whether due to a faulty motor or relay, it may not provide adequate airflow through the radiator, exacerbating overheating problems. Lastly, a failing water pump can hinder the effective circulation of coolant, leading to increased engine temperatures. Addressing these issues promptly is essential to prevent further damage to the engine and maintain the performance of your Subaru BRZ.

How urgent is it to address the overheating issue in my 2020 Subaru BRZ?

When it comes to your 2020 Subaru BRZ, addressing an overheating issue is not just a matter of convenience; it’s a pressing concern that can have serious implications for your vehicle's health and your safety. Overheating can lead to catastrophic engine damage, which may result in costly repairs or even complete engine failure if left unchecked. Moreover, the performance and efficiency of your vehicle can significantly decline, leading to reduced fuel economy and increased safety risks while driving. Regular maintenance is key to ensuring your vehicle operates smoothly, and ignoring signs of overheating can compromise its reliability. Therefore, it is crucial to act swiftly and address any overheating symptoms to safeguard your engine and maintain optimal performance. Taking prompt action not only protects your investment but also enhances your driving experience, making it essential to prioritize this issue.

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2020 Subaru BRZ Overheating: Causes & Repair Costs