6.0

fairly significant
Typical Repair Cost:
No data
Average Mileage:
36,550 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
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2021 Kia K5 cooling system problems

cooling system problem

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2021 Kia K5 Owner Comments

problem #1

Feb 032025

K5 GT-Line 1.6L

  • Automatic transmission
  • 36,530 miles

A D V E R T I S E M E N T S

In almost 2 years of ownership my coolant level has been significantly dropping for no apparent reason. Mechanics can't find the source of a leak. Topping off the coolant buys me a few months before the level dips again. This dip continues to happen until it reaches the neck of the hose. I have yet to risk letting it go below that. My engine oil has not showed any signs of coolant going into it. I have yet to see where this coolant is magically going.

- John M., Carlstadt, US

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