# 2015 Kia Sorento antifreeze smell

**URL:** <https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345>\
**Category:** Maintenance/Repairs\
**Tags:** kia, sorento\
**Created:** [April 24, 2020, 5:25pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345 "2020-04-24T17:25:12Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Scott10](https://avatars.discourse-cdn.com/v4/letter/s/e0b2c6/32.png) [@Scott10](https://community.cartalk.com/u/Scott10)\
**Post date:** [April 24, 2020, 5:25pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/1 "2020-04-24T17:25:12Z")

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Smell antifreeze after driving. Don’t notice any leaks or using any but I smell it after parking back in the garage.

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [April 24, 2020, 6:22pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/2 "2020-04-24T18:22:47Z")

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Could be the heater core. Check for damp carpet under the dash.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [April 25, 2020, 7:57pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/3 "2020-04-25T19:57:03Z")

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Is the coolant disappearing? In other words, is the coolant reservoir still full?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [April 25, 2020, 8:03pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/4 "2020-04-25T20:03:30Z")

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Try replacing the radiator cap.

![image](https://global.discourse-cdn.com/cartalk/original/3X/7/4/745d08a7f607ce65b45331f60cc182aa4f588d19.jpeg)

The radiator cap may be weak and is allowing coolant to escape as a vapor.

Tester

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**Author:** ![ken2116](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@ken2116](https://community.cartalk.com/u/ken2116)\
**Post date:** [April 25, 2020, 8:11pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/5 "2020-04-25T20:11:08Z")

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Is this a new problem or an old one? When did you first notice it? Do you only smell it in the cabin or also under the hood? Do you notice it more when running heat with fan? Fumes can drift from engine compartment into cabin, but If only in cabin check the heater core. When running the defroster does an oily residue build up on the inside of the windshield? It’s not healthy to breath, so don’t ignore it.

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**Author:** ![Scott10](https://avatars.discourse-cdn.com/v4/letter/s/e0b2c6/32.png) [@Scott10](https://community.cartalk.com/u/Scott10)\
**Post date:** [April 25, 2020, 8:57pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/6 "2020-04-25T20:57:19Z")

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You don’t smell it at all inside the car just when you get out. This vehicle only has 50,000 miles. I don’t really run the heater much. This vehicle sits in the garage most of the time because it’s the wife’s. We only drive it on the weekend.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [April 25, 2020, 9:09pm UTC](https://community.cartalk.com/t/2015-kia-sorento-antifreeze-smell/163345/7 "2020-04-25T21:09:37Z")

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> [@Scott10](#):
>
> Don’t notice any leaks or using any but I smell it after parking back in the garage.

Many years ago, I had the same problem, and I finally figured out that the screw-clamp on the upper radiator hose was just… slightly… loose. The amount of antifreeze that escaped was so small that it evaporated quickly, but the odor remained. So… check those hose clamps, on both the radiator hoses and the heater hoses.  
🤔
