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I recently heard a gurgling noise coming from behind my dashboard,smelled coolant in the engine compartment and noticed a low coolant level the other day. After four days at the dealership and overnight pressure testing the cooling system, dye tracing, camera scoping the cylinders and checking the plugs,the dealer could not find any leaks. They pulled two brand new K5’s off the lot and tested them as well and found the same issues. They sent all the information on all three cars to Kia corporate who came to the conclusion that for the time being this coolant smell and intermittent noise is inherent to this model. They topped off my coolant and told me to keep an eye on and see if it persists. Someone on another forum that works at a Kia dealership also said that all of their new K5’s are smelling of coolant in the engine compartment for some reason. Just wanted to give everyone a heads up in case you experience this in the future.
 

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I recently heard a gurgling noise coming from behind my dashboard,smelled coolant in the engine compartment and noticed a low coolant level the other day. After four days at the dealership and overnight pressure testing the cooling system, dye tracing, camera scoping the cylinders and checking the plugs,the dealer could not find any leaks. They pulled two brand new K5’s off the lot and tested them as well and found the same issues. They sent all the information on all three cars to Kia corporate who came to the conclusion that for the time being this coolant smell and intermittent noise is inherent to this model. They topped off my coolant and told me to keep an eye on and see if it persists. Someone on another forum that works at a Kia dealership also said that all of their new K5’s are smelling of coolant in the engine compartment for some reason. Just wanted to give everyone a heads up in case you experience this in the future.
Brand new Kia owner here! I am having this exact same issue. My car has 250 miles on it and im getting a strong coolant smell from the engine bay. I was alerted to this a few days ago when i walked past my car after a drive and got a smell of it. Are they going to contact you for further diagnoses ? I think after the holidays i will call my dealer and make an appointment for them to check it out. Did you get a low coolant light or did you check the level yourself?
 

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Brand new Kia owner here! I am having this exact same issue. My car has 250 miles on it and im getting a strong coolant smell from the engine bay. I was alerted to this a few days ago when i walked past my car after a drive and got a smell of it. Are they going to contact you for further diagnoses ? I think after the holidays i will call my dealer and make an appointment for them to check it out. Did you get a low coolant light or did you check the level yourself?
They did not diagnose any further than to keep an eye on it. I did notice that as soon as I got it back that even though they topped it off it still looked to be on the low side so I bought some coolant anf added just a little to the low line just in case.
I never got any low coolant light I just checked myself. I have not noticed any additional smells or gurgling noises since then. I also posted in two 2021 Kia K5 facebook groups and they had similar stories.
 

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I will be checking my level when im off work and i will report back with what i find. i thought i was going nuts smelling coolant in a brand new car.
 

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I've heard the gurgling noise a few times on my EX, but haven't noticed a coolant smell or low coolant level. I'll keep an eye on it though.
 

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I've had the same problem for about a month. Dealership said the same thing. I had to top off the coolant 3 days ago and have not smelled anything and the levels have not dropped as of today.
 

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I've had the same problem for about a month. Dealership said the same thing. I had to top off the coolant 3 days ago and have not smelled anything and the levels have not dropped as of today.

230 miles and Im still getting the coolant smell... level is fine when i check... starting to piss me off haha
 

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I've had the same problem for about a month. Dealership said the same thing. I had to top off the coolant 3 days ago and have not smelled anything and the levels have not dropped as of today.
Same issue with coolant smell ±2000Km. this is not normal! Hope KIA will found the problem and fix it!
 
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