Ongoing Coolant Problems

LevL2

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Hello Stinger GT2 Owners! I love my 2018 Stinger, however, I started smelling coolant at approximately 3500 miles. The dealer assured me it was the shipping oil, and I’ve owned several new cars, so I’m very familiar with that odor. Turns out there was a defective seam in the radiator that quickly expanded into a major coolant blowout. Fortunately, I got it to the dealer before it got past 220 degrees, and they replaced the radiator. Took 6 days for the new radiator and installation. There continues to be a strong smell of coolant, particularly with the windows down, and subsequent visits to the dealer has not fixed the problem; they are back to, “it’s the shipping oil you’re smelling”. I’m frustrated and torn. I love the car but cannot deal with the strong odor.
I have recently opened a case with Kia’s Consumer Division. I’ll keep you all posted.
 
Hope your problems get solved soon.
 
Get the engine steam cleaned and see if that helps. Never had an issue with my car.
 
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The shipping oil was burned off for me completely in the first 300-500 miles. No way that’s the issue. Sounds like the service Dept doesn’t know what it is so just made that line up. Call Kia consumer affairs.
 
Six days? Good garbage. Some of these service periods are lengthy. Is Kia having a parts problem. Is it a common thing with first year model anythings? Right now, Tesla is nine months or more behind in service because of a parts issue. Heh! Makes six weeks sound like a breeze! But still, I am used to one day in, one day out for a radiator replacement, or even same day. You make your appointment, and bang you're out that afternoon.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
My bet is that coolant is still collected somewhere... possibly in/on a porous surface like rubber hoses. Maybe even plastic. Those covers to the fuses and even the engine cover would certainly absorb enough to deliver an odor when at a higher temp. I'd also have them replace the in-cabin filter as coolant is a lingering type odor and could have been caught in the carbon based paper.
 
Hello Stinger GT2 Owners! I love my 2018 Stinger, however, I started smelling coolant at approximately 3500 miles. The dealer assured me it was the shipping oil, and I’ve owned several new cars, so I’m very familiar with that odor. Turns out there was a defective seam in the radiator that quickly expanded into a major coolant blowout. Fortunately, I got it to the dealer before it got past 220 degrees, and they replaced the radiator. Took 6 days for the new radiator and installation. There continues to be a strong smell of coolant, particularly with the windows down, and subsequent visits to the dealer has not fixed the problem; they are back to, “it’s the shipping oil you’re smelling”. I’m frustrated and torn. I love the car but cannot deal with the strong odor.
I have recently opened a case with Kia’s Consumer Division. I’ll keep you all posted.
I to am experiencing a similar problem. 2018 GTII (Canada Model) bought in January of this year.
Though not a strong oder of glycol, I have recently, with 3200 KLMS, started to notice that distinctive glycol oder just as I open the door after the car has been driven, is parked, shut off and is up to full operating temperature.
I took my car in last week to the dealer for the first time with this complaint I got the car back with the traditional and very irritating, "no fault found" and "can not duplicate the customer complaint" statements from the tech on the work order. These types of replies drive me crazy. In your experience the "Shipping Oil" they are referring to coats the exhaust and Turbo so that they do not rust during their trip over from Korea. That stuff is designed to and does burn off after only a few full temperature run ups and is intentionally designed to "NOT" leave any lingering smell. As I suspect you have already determined, the dealer is just trying to blow smoke up you know where. As with you, my time is valuable. I don't take my car to the dealer because the door occasionally creeks or the infotainment system won't do something it is supposed to do. I take my car into the dealer when I experience something that could develop into a big problem like a rad failure, hose blow out, leaking intake or head gasket. Having been building race cars and engines for 30m years there are two smells I am hypersensitive to. One is Gasoline and the second is Glycol. Either of those two leaking from an engine points to a big problem. Todays plug and play, so called technicians, seem to have very little desire or incentive to actually go and look for a problem. In my experience, if the problem doesn't hit them in the face as soon as they open the hood then the "No Fault Found" message is typed into the computer and they move onto the next car. I will be watching this thread very closely due to the similar nature of your issues. Good luck and please do keep us informed. I will do the same if I find out anything in my quest for a solution.
 
Gosh hope it’s not something serious. I will start off with some simple step first:

1) Any coolant loss from spare tank.
2) Any coolant mix with engine oil or vice versa.
3) smell comes on when sitting overnight or only after driving

Maybe just venting due to pressure from radiator.
 
No appreciable loss in the reservoir.
No visible drips sweats or accumulation of coolant anywhere that I can see.

Any normal "venting" that occurs in modern cars is as a result of the normal coolant volume expansion when the engine is running at F.O.T. (full operating temperature). This anticipated expansion is accommodated and captured in the coolant reservoir tank. Thus the two markings on the tank full cold and full hot.
There should never be an odour of glycol being generated as a result of that normal expansion process unless the tank it's self is cracked and is leaking.

GM over the years has had problems with their 100% Aluminum engines where they experienced glycol seepage from their engines while running hot due to how porous the aluminum castings were. GM developed a Coolant Additive that when added to the antifreeze, would circulate through the coolant chambers and then coat them so that any microscopic imperfections in the casting would be plugged.
I have to use the product twice. Once in my 1997 C5 Corvette and my 2002 Cadillac STS.
They both live at our vacation home in Phoenix where is gets stupid hot.
This odour problem is going to be one of those problems that sticks around until whatever is happening manifests it's self as a bigger problem.
Now at the very least Kia has been made aware of the issue.
 
Update about this? I smell it a little bit and for a few seconds after I push the engine harder. It is definitely glycol as I do know the smell very well. I don't know the reason or if it is a problem. How can I diagnose the problem?
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
I get a smell too when car is hot and sitting and I think it’s normal.
There overflow gets very hot and it makes the coolant smell more. Most newer coolants in the last couple of years smell stronger. The over flow probably has a vent as well that steam and pressure can escape. My 2015 rubicon smelled worst then my stinger. Unless you are loosing coolant I would not worry about it.
 
QUOTE="max2382, post: 102928, member: 4097"]Update about this? I smell it a little bit and for a few seconds after I push the engine harder. It is definitely glycol as I do know the smell very well. I don't know the reason or if it is a problem. How can I diagnose the problem?[/QUOTE]
Unfortunately the only way to know for certain is either visualizing glycol on or leaking from the engine or actually experiencing enough of a leak that you can notice a decrease in the fluid level in the reservoir. Glycol as with Gasoline has a very distinctive odor. The volume expansion factor for water changing to vapor is 2000X. That means the 1cc (ml) of liquid will expand to 2000cc of vapor. Based on that a very small seeping leak can create a great deal of vapor. It's that vapor that we are smelling. Sorry to strongly disagree with previous posters but this is not normal. It means that glycol is leaking somewhere. In our family we have three other Kias with the same engine just not with the dual turbos. None of those vehicles have the same odor.
 
5.2k km in and my coolant is leaking somewhere under the hood as I watch the spare tank coolant dropping, weekend gonna update next week, Might be same problem as you
 
ok so i just refill my reservoir again to full, no leak but engine is overheating every 300meter, i shut down engine n wait like 30sec and it went back to middle temp and drive off and it repeat everytime...wtf going on?
 
ok so i just refill my reservoir again to full, no leak but engine is overheating every 300meter, i shut down engine n wait like 30sec and it went back to middle temp and drive off and it repeat everytime...wtf going on?
It's hard to tell from these posts because it could be anything. The only way to know is to get under the car and follow the coolant path to find leaks. Just because it's not dripping to the ground does not necessarily mean there is not a leak. There are plenty of places for fluids to collect, including all the protective plating on the underbody. If a leak is not found it usually means it's being consumed by the engine. While a gasket failure at this mileage is improbable, there is always a chance it can occur. Especially if you ran the car hot for an extended time, like if you didn't realize it was over heating the first time, it's possible the head is warped, the gasket is damaged, or even a crack.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
There could also be an air bubble in the cooling system. I'm not familiar with the process for bleeding the cooling system in the Stinger. But that's what's needed. I'd definitely have the car at the dealership before driving far.
 
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ok so i just refill my reservoir again to full, no leak but engine is overheating every 300meter, i shut down engine n wait like 30sec and it went back to middle temp and drive off and it repeat everytime...wtf going on?
Thanks for replying to my post regarding my Glycol oder issue.
Your problem may be the same cause as mine but is obviously much worse.
I am very much intrigued however as to why the problem goes away after such a short period of time of you turning the engine off. I find it hard to believe that the engine is truly over heating as such a short engine off period would not be long enough to allow an over heating engine time to cool down.
Recommendations to have the dealer look at it are strongly supported by myself.
In the interim, I would start with these steps. 1st Is the car setting any diagnostic codes with the service service light being illuminated? 2nd Is it actually over heating or is the temperature sensing unit sending a false signal to the ECM? If you have a hand held Infrared Thermometer point it at hoses where the collant enters and exits the engine. The coolant should be at or maybe "SLIGHTLY ABOVE" the boiling point at the exit point but noticeabaly cooler at the exit point of the rad. If the coolant is not noticeably higher than the boiling point then I would focus on the temperature sensor. 3rd Are the rad/cooling fans cycling on and off. They should cycle on once the engine progresses past a normal operating temp then cycle off once that temperature goes below that point. Just know as well that as the AC compressor cycles on the fans will also cycle on to increase the airflow through the AC condenser which is located in front of the radiator. 4th If the coolant is heating up it could be a variety of reasons. Some as simple as a poor thermostat, poor rad temp sensor thereby not cycling the fans when require and more serious challenges like cracked head/engine block.
With you actually losing fluid I sadly would think your problem may be more on the serious side.
Having said that I would STRONGLY recommend that you have both the glycol and engine oil independently analyzed. Catapiller Industries in North America have what they call the SOS program. A person can go to a Catapiller dealer/service and buy a kit that contains an envelope and a fluid sample container. This program is designed soley so that customers can find out that things are inthe process of getting serious. It allows owners to fix things before they experience a never convenient catastrophic very expensive failure.
Collect the fluid, return the sample to Catapiller with your contact information and in about a week you will get an email with an in depth chemical analysis of the fluid.
The big thing you are looking for in the report is the presence of engine oil in the glycol and even more problematic is there glycol in the oil.
Even microscopic amounts of each being in the other is unacceptable and points to a serious internal problem.

The kits are about $25.00 per kit here in Canada.

I have in the past found the information to be great value particularly when I suspect the dealer trying to play the smoke and mirrors game.

On a side note, I trust you have read on this posting of the experience of another owner where the clamps on the rad tanks failed leading to a major coolant fluid leak.

Best of luck in your quest.

Please do continue to post the specifics of your case and resolutions Kia has employed.
 
Hello Stinger GT2 Owners! I love my 2018 Stinger, however, I started smelling coolant at approximately 3500 miles. The dealer assured me it was the shipping oil, and I’ve owned several new cars, so I’m very familiar with that odor. Turns out there was a defective seam in the radiator that quickly expanded into a major coolant blowout. Fortunately, I got it to the dealer before it got past 220 degrees, and they replaced the radiator. Took 6 days for the new radiator and installation. There continues to be a strong smell of coolant, particularly with the windows down, and subsequent visits to the dealer has not fixed the problem; they are back to, “it’s the shipping oil you’re smelling”. I’m frustrated and torn. I love the car but cannot deal with the strong odor.
I have recently opened a case with Kia’s Consumer Division. I’ll keep you all posted.
My 2018 Stinger GT2 has overheated with 19,500 miles. Dealership determined that I have a defected radiator.......I am waiting a replacement radiator and a test drive by the dealership before I accept my car. Very disappointing to spend $50,000 for this car with a defect radiator...... it has been 7 days at the dealership..........however I still love this car......I will update
 
Hello Stinger GT2 Owners! I love my 2018 Stinger, however, I started smelling coolant at approximately 3500 miles. The dealer assured me it was the shipping oil, and I’ve owned several new cars, so I’m very familiar with that odor. Turns out there was a defective seam in the radiator that quickly expanded into a major coolant blowout. Fortunately, I got it to the dealer before it got past 220 degrees, and they replaced the radiator. Took 6 days for the new radiator and installation. There continues to be a strong smell of coolant, particularly with the windows down, and subsequent visits to the dealer has not fixed the problem; they are back to, “it’s the shipping oil you’re smelling”. I’m frustrated and torn. I love the car but cannot deal with the strong odor.
I have recently opened a case with Kia’s Consumer Division. I’ll keep you all posted.
My 2018 Stinger GT2 was in the dealership for 12 days to repair a coolant leakage which caused the car to overheat. Plus, my car would shift hard into second gear with a cold start. My 2018 Stinger GT2 only had 19,000 miles. Consequently on October 16, 2020, I decided to trade in my 2018 Stinger GT2 for a 2021 Kia Telluride SX with the Prestige Pack. I love my Stinger but I did feel comfortable with that engine..... Maybe I will wait on a total refresh model of the Stinger.......new engine and body design!
 
If it's leaking coolant you will see the level in the resiviour start dropping?
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
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