[ALL] : Burning smell coming off the turbo
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Thread: Burning smell coming off the turbo

  1. #1
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    Burning smell coming off the turbo

    Hi All, I have briefly searched the Forum and found a couple of threads on burning smells. The smell I experienced was oil and coolant like smell, not electrical or petroleum.


    Please let me set the table; I own a 2013 Sonata SE 2.0T, this morning it was -10*F in Minneapolis and while driving to work I noticed a burning smell in the cabin. I opened the window to see if it was the outside smell and it wasn't and the smell went away. About 10 minutes later it smelled again. When I got to work I popped the hood and then lifted off the engine cover and found the smell source, it appears to be coming off the turbo. I could see heat coming off the turbo and maybe a faint bit of smoke but again it was -10* so maybe just heat. I did not drive the car hard at all, maximum RPM could not have been above 4,000 because of the fear of black ice. I have never experienced this smelled before even after hard driving. On my drive home tonight it was +5*F and I did not experience the smell and believe I was waiting for it. I have 5,500 miles on the ODO thus it cannot be the machine oil used during manufacturing. My wife also complained to me about a burning smell also on a cold day but I kind of blew it off because she is always looking for something wrong, now I have to believe her because now I have experienced it. The oil was changed at 3,000 with M1 0w40, K&N oil filter and no oil was spilled in the fill up.


    Anyone in cold weather states or Canada ever experience the burning smell coming off the turbo when it was bitterly cold? I know that bitterly cold temps makes cars do funny things but I have never had a turbo charged car before my Sonata.

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  3. #2
    OptimaForums Veteran DINO2K's Avatar
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    Sometimes I have that burning smell too but my head kept telling me its from the outside so I ignore it. After a while it doesn't come back so I assume nothing happens, I will have to keep an eye out though if that burning smell ever comes back. Sorry I couldn't help you and hopefully others will chime in to help.

  4. #3
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    I had it and it ended up being a plastic ring clamp on the pipe above the turbo. It melted off and fell on the heat shield and always smelled when it heated up. Dealer replaced ring and heat shield.

  5. #4
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    Quote Originally Posted by PatMir View Post
    I had it and it ended up being a plastic ring clamp on the pipe above the turbo. It melted off and fell on the heat shield and always smelled when it heated up. Dealer replaced ring and heat shield.
    I was thinking something like this could be happening. I have not peered under the heat shield but I will and then maybe bring the Sonata in for a quick look by a Service Tech. Thank you for the info.

  6. #5
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    Hope that's it since it was an easy fix. You should be able to see it easily right behind the engine cover on top of the heat shield.

  7. #6
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    Hi PatMir, where are you located, I am at Hyundai today and the Service Tech is stumped. He took the car out and did smell what I described but he cannot identify the smell. The Service Tech is going to call their helpline to see if any other cars are reporting a smell. Thank you. If you want please PM me.

  8. #7
    Riding Lawn Mower
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    Problem solved, the Service Tech took off the turbo heat shield and found unidentifiable carbon all over the turbo. Still no idea what is was but it was cleaned and ready to go. They kept the carbon ad will be reporting to Hyundai.

  9. #8
    Your K5 Optima Vendor K5 Optima Store's Avatar
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    Quote Originally Posted by 2.0 터보 View Post
    Problem solved, the Service Tech took off the turbo heat shield and found unidentifiable carbon all over the turbo. Still no idea what is was but it was cleaned and ready to go. They kept the carbon ad will be reporting to Hyundai.
    Weird indeed, but glad they figured out what was causing the smell.

  10. #9
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    Quote Originally Posted by 2.0 터보 View Post
    Problem solved, the Service Tech took off the turbo heat shield and found unidentifiable carbon all over the turbo. Still no idea what is was but it was cleaned and ready to go. They kept the carbon ad will be reporting to Hyundai.
    Glad to hear it was something simple. Am curious where it came from and if it returns.

  11. #10
    Certified Wrench Monkey KingFatty's Avatar
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    Yes it is nice to clean off the carbon deposits, but would be even better to figure out where the heck is it coming from, how it got on the turbo? Is it a gasket leak at the turbo?

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