2016 Kia Soul EV Has A Coolant Leak

Diagnosing Coolant Leaks in Your 2016 Kia Soul EV and Effective Repair Strategies

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
50% chance it's the
Loose Hose Connections
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25% chance it's the
Radiator
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25% chance it's the
Water Pump
The most common reasons a 2016 Kia Soul EV has a coolant leak are loose hose connections, a broken radiator, or a failed water pump.
  • Loose Hose Connections: A loose hose connection can lead to vacuum leaks or fluid loss, resulting in poor engine performance or overheating.
  • Radiator: A damaged or clogged radiator can impede coolant flow, resulting in engine overheating and reduced cooling efficiency.
  • Water Pump: A failing water pump can lead to coolant leaks or overheating due to inadequate circulation of coolant in the engine.
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.

How much does it cost to fix a 2016 Kia Soul EV has a coolant leak?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A failing radiator can cause the engine to run hot or overheat. Most radiators are made of metal and plastic. The plastic parts can become brittle and crack over time, causing a leak of coolant (typically green or pink in color). All manufacturers have a recommended service interval for coolant renewal. As the coolant ages, the additives breakdown and being to form solid deposits. These deposits will build up in the passages of the cooling system and will eventually clog components, including the radiator. A leaking or clogged radiator must be replaced. Some automatic transmission cars will also have a transmission cooler integrated into the radiator. Lines going to and from the transmission circulate transmission fluid to help cool the transmission in heavy duty applications such as towing or off-roading. If this integrated cooler fails, it can allow transmission fluid and coolant to mix. This will causing shifting issues in addition to overheating.

A coolant leak may be noted from the hoses. Coolant hoses can be damaged by oil leaks, or age. This will lead to swelling or cracking, it is suggested to replace the hoses before they begin leaking to avoid potential overheating.

What steps should I take to diagnose a coolant leak in my 2016 Kia Soul EV?

To effectively diagnose a coolant leak in your 2016 Kia Soul EV, start by identifying the signs of a leak, such as visible puddles of coolant, unusual engine temperature readings, or a sweet smell in the cabin. Once you notice these indicators, ensure your vehicle is parked on a level surface with the engine cool before inspecting the cooling system components, including hoses, the radiator, and the water pump, for any visible damage or moisture. If the source of the leak isn't immediately apparent, consider using a cooling system pressure tester to help pinpoint the issue. Common areas to check include the hoses, which may crack over time, the radiator for corrosion, and the water pump for leaks. After addressing any identified issues, it’s crucial to flush the cooling system and refill it with the correct coolant mixture, followed by a pressure test to confirm the leak has been resolved. Regularly monitor coolant levels in the following days to ensure no further leaks develop. If you feel uncertain at any point, seeking professional assistance is advisable to ensure a thorough and accurate diagnosis.

What are the common causes of a coolant leak in a 2016 Kia Soul EV?

When dealing with coolant leaks in a 2016 Kia Soul EV, it's essential to understand the common culprits that may be at play. A damaged radiator is often a primary suspect, especially if the vehicle has experienced any impacts or collisions, which can create holes or blockages. Additionally, loose or damaged coolant hoses can lead to leaks; these hoses may deteriorate over time or become compromised due to external factors, so it's crucial to inspect them regularly. The water pump is another critical component; if it fails, coolant can leak from the area surrounding it, indicating a need for replacement. While less frequent, leaks can also stem from the thermostat housing or other cooling system components, so a thorough inspection is necessary to pinpoint the source. Improper connections or worn O-rings can exacerbate the issue, as they may not provide a secure seal. Lastly, corrosion or sediment buildup within the cooling system can lead to leaks, making regular maintenance, such as coolant flushes, vital for preventing these problems. By understanding these common causes, DIY enthusiasts can effectively troubleshoot and address coolant leaks in their Kia Soul EV.

How urgent is it to address a coolant leak in a 2016 Kia Soul EV?

Addressing a coolant leak in your 2016 Kia Soul EV is not just a matter of routine maintenance; it is an urgent necessity that can have serious implications for both your vehicle's performance and your safety. A coolant leak can lead to engine overheating, which poses a risk of catastrophic damage to essential components like the engine block and cylinder heads. This kind of damage can result in costly repairs, including the potential need for a new engine. Moreover, if the coolant level drops too low, the engine may struggle to maintain its operating temperature, leading to immediate performance issues that could leave you stranded. The safety risks are equally concerning; an overheating engine can lead to mechanical failures that compromise your control of the vehicle, increasing the likelihood of an accident. By addressing a coolant leak promptly, you not only protect your engine from further damage but also ensure your vehicle remains safe and reliable on the road. Regular maintenance checks can help catch leaks early, but once detected, it is crucial to act swiftly to mitigate any risks associated with this urgent issue.

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2016 Kia Soul EV Coolant Leak Causes & Repairs | RepairPal