Engine Oil Leaking Problems of Hyundai Sonata - part 1

Hyundai Sonata owners have reported 40 problems related to engine oil leaking (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Hyundai Sonata based on all problems reported for the Sonata.

car image   Engine Oil Leaking problem of the 2015 Hyundai Sonata 1
Failure Date: 01/15/2018

Just started driving on city street (1/4 mile) check engine light came on vehicle would not got above 25 mph and ran rough idled too fast when stopped towed into dealer diagnosed scan code 0010 found cvvt seal pushed out and leaking oil on another part which cause the drivability problem 55,139 miles on vehicle.

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car image   Engine Oil Leaking problem of the 2015 Hyundai Sonata 2
Failure Date: 07/31/2017

The contact owns a 2015 Hyundai Sonata. While driving 35 mph, the engine stalled without warning. The contact pulled over to the side of the road. The contact noticed that the fuel in the engine oil was empty. The contact refilled the oil. The vehicle was restarted and returned to normal. The contact also stated that there was no oil leak. The vehicle was taken to the dealer (first lube USA located at 3614 w Lincoln Ave, milwaukee, WI 53215; (414) 647-8820) where an oil flush was performed and the oil was refilled. The vehicle was not diagnosed. The manufacturer was not contacted. The approximate failure mileage was 58,000.

car image   Engine Oil Leaking problem of the 2008 Hyundai Sonata 3
Failure Date: 04/10/2017

Driving on the highway at approximately 70 mph when my vehicle lost power without any warning whatsoever, including power steering. Momentum and struggle steering allowed me to move from center lane to shoulder of the road safely. Initially thought it was the leaky head cover gasket that slowly leaked onto the alternator. Had it towed to a reputable mechanic who later informed me the engine had seized. He did verify that was oil in the engine at the time. The car was not even 10 yrs old and purchased brand new.

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car image   Engine Oil Leaking problem of the 2015 Hyundai Sonata 4
Failure Date: 01/08/2017

The contact owns a 2015 Hyundai Sonata. The contact stated that the vehicle failed to accelerate over 40 mph. The check engine warning indicator illuminated. The failure recurred on numerous occasions. The vehicle was towed to a dealer where it was diagnosed several times with oil leaking into the housing. The seals were resealed and the housing was replaced several times, but the failure recurred. The vehicle was towed to the dealer again where it was diagnosed that oil was leaking into the housing unit and caused acceleration failure. The gear needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the issue. The failure mileage was 22,000.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 5
Failure Date: 09/04/2016

During my last scheduled vehicle maintenance in April 2016, I explicitly communicated my concerns to the Hyundai dealer about my engine and the fact that the oil light kept coming on when I tried to accelerate and would go off as soon as I took my feet off the accelerator. I just found out through local news and information from online blogs that this was a sign of engine manufacturing problems originating from Hyundai's alabama engine manufacturing plant. The dealer did not inform me that the engine in my vehicle was being recalled. Instead, I was told via the maintenance report that oil level was low and there were no visible leaks. I have receipts to prove that I adhered to all recommended owner maintenance services and have been diligent enough to service my vehicle according to the service schedule prescribed during vehicle purchase. I have strong reasons to believe Hyundai has not been honest with its customer. This being because, rather than elaborate on the cause and solution to the problem (I. E. Hyundai Sonata 2011-2012 engine recall), information was deliberately withheld from me by Hyundai. I never received a recall notice from the dealer despite purchasing the vehicle from an authorized Hyundai pre-owned vehicle dealer. I'm even more frustrated because this recall was announced in September 2015, 4 months after I purchased my vehicle under warranty and paid extra to have extended warranty coverage added on my vehicle. It¿s now 7 months after the recall announcement and I still have not received notice of the recall from Hyundai. As of today, 3 weeks after my vehicle stalled on the on-401 highway whilst driving at approx. 100km/hr. , I have not heard back from Hyundai. I had to coast my vehicle to the outside shoulder of the busiest highway in north America at 9:00pm. 3 weeks on, I have no vehicle, no repair timeline and no response from Hyundai.

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car image   Engine Oil Leaking problem of the 2012 Hyundai Sonata 6
Failure Date: 07/22/2016

Oil feeder line leaked. This was a known defect in the 2011 vehicles. Occurred just out of warranty period. Hyundai would not replace under warranty even though this is a known issue with the 2012 models as well.

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car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 7
Failure Date: 07/11/2016

The feed line going to the turbocharger leaks oil. This is a ongoing problem for many owners. The oil leaks from a woven plastic/nylon part connected to the metal part of the line. This could cause a fire as the oil leaks to an area where it can contact the hot engine parts. Oil leaks from the line both when the car is in motion and after it is stopped causing a environmental issue.

car image   Engine Oil Leaking problem of the 2006 Hyundai Sonata 8
Failure Date: 03/18/2016

First, oil is leaking on alternator and area around, car needs a valve cover gasket, driver airbag light stays on, passenger sun visor wont stay up, the vehicle has 149000 miles on it. There are to many complaints for these subjects, a recall needs to be issued.

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car image   Engine Oil Leaking problem of the 2012 Hyundai Sonata 9
Failure Date: 01/30/2016

The engine oil pan was resealed five times and still its leaking. When they resealed the second time, they replaced the oil pan as well. After that it was resealed three more times and the car is at the dealer for sixth reseal. They are replacing the pan again. The brake caliper pistons are exhibiting excessive rust which I have not seen in my life while owning and maintaining various cars. The field engineer is saying that its normal and I don't agree with that. What I have seen based on that it's a design flaw. The caliper piston should be pressing completely against the brake pad surface area where as small portion of the caliper remains in non contact with the pad and the salt and slush during the winter gets into it making it rust which will impede the braking operation in future and may cause a fatal crash. Attached photographs are showing pack rust inside the piston on both the driver and passenger side.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 10
Failure Date: 12/01/2015

Hyundai installed faulty oil feed pipe to the turbo in Hyundai Sonata 2011 2. 0t, the pipe leaks and results in low oil in the engine, which causes engine failure. I saw the oil leaks on the parking spot. Took it to the mechanic and the pipe was at fault, my engine oil was at critical level, provided that I had it changed about 1000 miles.

car image   Engine Oil Leaking problem of the 2006 Hyundai Sonata 11
Failure Date: 11/20/2015

On lambda/lambda ii mpi series engines, engine oil can leak onto the alternator, which could affect charging system function and potentially cause the engine to stall and not restart. This would result in a loss of motive power as well as affect power braking and power steering system function, which would unexpectedly increase steering and brake pedal effort, potentially increasing stopping distances and the risk of a crash causing injury and/or damage to property. Every make/model of vehicle that has this engine has oil leaks on the alternator and other critical components (I've replaced 3 alternators so far! ~$200 each! + labor!!!) yet only a certain year of the "vera cruz" received a recall because the cost to Hyundai would be higher to fix this issue on all affected vehicles (azera, sante fe, and my Sonata etc. Models).

car image   Engine Oil Leaking problem of the 2012 Hyundai Sonata 12
Failure Date: 11/09/2015

Oil pan has been leaking and resealed four times. After first two times the dealer replaced the pan and resealed it again. It started seeping again and I am sick of it. The oil pan has been leaking since the car had only 7000 miles on it and I bought it brand new.

car image   Engine Oil Leaking problem of the 2013 Hyundai Sonata 13
Failure Date: 11/04/2015

My vehicle has been an issue since I purchased it. I have taken it in five times for the same issue with the sunroof leaking and damaging the interior of the vehicle. I have also taken it in for replacement of cv joints twice and as of yesterday for the third time with no resolution. When I dropped off my vehicle it was fine with no lights, no oil change light on or anything, but they called to let me know I had sludge in my engine and it is going to lock up on me. My bumper to bumper warranty will not cover it so I will need to pay out of pocket to fix the issue on a brand new car . I have also had to change my tires on the car at least eight times in the last 3 years. I purchased a warranty for tires and rims, but as usual they have loop holes. They promised I can change my rims if I had any scratches, but when I tried to change them, they have denied my request for three years. It is frustrating to know that what they promise is a lie.

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car image   Engine Oil Leaking problem of the 2006 Hyundai Sonata 14
Failure Date: 11/01/2015

Oil leak from engine valve cover - left (front) side of 3. 3 v6. This is directly above alternator. Eventually alternator fails due to severe oil/dirt contamination. First noticed when battery light comes on at idle, showing charging problem. By then damage is done. Valve cover must be replaced along with alternator or problem will quickly recur. *there is currently a recall for Hyundai veracruz with same engine for the same problem. Sonata is not included, but a quick internet search shows this to be a common, well-known problem for many years.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 15
Failure Date: 10/01/2015

The contact owns a 2011 Hyundai Sonata. After the vehicle was repaired according to NHTSA campaign number: 15v568000 (engine), oil leaked from the engine and the engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that the hoses and coil springs needed to be repaired. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 41,200.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 16
Failure Date: 07/13/2015

My father in law who is a mechanic changed my oil on Sunday. My husband and I have one car so I left vehicle home so it could get changed. Monday 7/14/15 I drove car to work which is 10 mins from home. I drove car home from work car was fine. When my husband drove the car back from the store and he said that he went to accelerate the car did nothing. There was no warning lights or anything. My husband had to coast all the way into driveway. In October of 2014 I had the starter replaced by the dealer under warrantee and 6 recalls taken care of. During that time they had broken the whole frame of the car and I was with rental for a week and a half. So at this time I thought that the starter went again. I had to wait until Friday to take the car to the shop since I was 484 miles over warranty and had to pay for diagnostic. Left car at dealership at 8:30am. They had not gotten back to me until Monday 20, 2015. The called to tell me that it was the starter which would not be covered and OH yeah you're engine has seized, and OH yeah you're car has been leaking oil profusely. I explained that the car had not been leaking the entire time it had been sitting in my garage nor did it leak on the tow truck. And then I asked how can an engine seize at 60000 miles. They want to charge me 8000 for starter and remoded engine and 6000 for new engine and starter. I am not replacing engine with another failed engine. I am going to seek advice from lawyer. Thank heavens my husband was not driving on major highway when engine cut out. Completely ridiculous. Had salesman told me about these issues when I bought the car in March of 2014, I would not have purchase the car. I think it is a lack of ethics.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 17
Failure Date: 05/15/2015

Driving down the interstate I heard and felt a faint puddering. I looked down and my oil light was on. I was able to immediately exit. As I was going on the off ramp the check engine light came on. I was able to barely pull into a park and ride. 20 minutes later oil was everywhere. The car never overheated, and there was a trail of oil from the road to my car. Since I had taken it to the get the oil changed just on the 5th of may, just 10 days earlier. I had the car towed to that facility. The piston internally slammed through the engine punching a hole in the engine wall, and leaking oil from the engine. The engine did not cease. Pieces and parts of bolts and side wall were found by the mechanic.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 18
Failure Date: 03/20/2015

Driving down hwy @65mph. Car lost power. Was able to get to side of road. Car smelled and smoking. Checked oil. . . 2 liters low. Had oil changed 1000 miles ago. No oil light came on. Have been routinely checking my oil because 2 weeks after oil changed had car serviced for brakes and mechanic checked oil and was low. He put oil in. No oil leaks anywhere. Now I have to pay 4500 for another 2011 Hyundai Sonata engine which I really don't want to put it because there is obviously a problem with this engine and replacing with the same I will end up with the same problem.

car image   Engine Oil Leaking problem of the 2006 Hyundai Sonata 19
Failure Date: 02/11/2015

Oil leaked from valve cover onto alternator. Engine stalled and left me stranded on rural mountain road. Finally got towed home. Mechanic says it will cost nearly $1000 to replace valve cover gaskets and alternator. Car is 2006 Hyundai Sonata with 3. 3l 6cyl engine. I believe that this is the same engine and same problem that prompted the recall on 2007 Hyundai veracruz NHTSA campaign number: 14v415000. The existing recall should be expanded to include more Hyundai vehicle models that exhibit the same problem.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 20
Failure Date: 12/06/2014

Tell us what happened: bought vehicle new and regularly had serviced by dealer. Vehicle died without any warning coming off highway and I had to turn flashers on and place in park to restart. Engine started knocking with no warning and no warning lights illuminated. Had towed to dealer and was told engine had no oil and requires an engine change. Where did it go? there has never been any signs of smoke, burning smell or leaks anywhere and no warning lights ever giving indication of a low oil or low oil pressure indication nor any other engine light warning. Now dealer says we have to convince regional manager that this was not neglect on our part to have covered under the 100,000 mile power-train warranty.

car image   Engine Oil Leaking problem of the 2011 Hyundai Sonata 21
Failure Date: 10/04/2014

I purchased the 2011 Sonata certified used, plus I purchased the extended warranty. I was exiting the freeway when the car just died, no sounds, no warning, no check engine lights, nothing. I was able to coast to a gas station and I noticed a little smoke coming from the engine. I had it towed to a dealership and 2 days later they called & told me the engine seized, but the oil was only about half a quart low. The dealership wouldn¿t honor the powertrain warranty because they said it's limited to 60k miles (i¿m the 2nd owner & my car had 66k miles). I filed a claim with extended warranty service and they sent out an inspector. His finding was it was 2-3 quarts low, there was "sludge and metal bits" in the oil and we'd need a new engine. Because I couldn¿t produce the receipt from my last oil change, they cited owner neglect and denied the claim. I used royal purple synthetic oil (and have used this same oil for the past 15 yrs in all my vehicles). I changed my own oil in July, approximately 3 months prior. Note: there was never any oil leaks or stains on the driveway, no low oil/engine light at all. To replace the engine, it was going to cost around $6000. 00. I couldn¿t afford that, so I ended up having to get another car. Which sucks because now I am paying 2 car notes, on 2 cars, but I am only able to drive one. I don¿t want to mess my credit up by letting it go back, so i¿m really trying to hold on to it as long as I can, but I really don¿t know when i¿m going to have the extra $$ to get a new engine put in.

car image   Engine Oil Leaking problem of the 2008 Hyundai Sonata 22
Failure Date: 08/15/2014

Engine died while driving. The cause was alternator failure due to oil leak from front valve cover. This is a 2008 Hyundai Sonata 2008 with 3. 3 liters v6.

car image   Engine Oil Leaking problem of the 2008 Hyundai Sonata 23
Failure Date: 08/06/2014

Driving while using cruise control at approximately 65 mph the check engine, air bag, and e. S. C light illuminated. Also, a simultaneous internal engine explosion resulted in an instant fire as well as a rod thrown from the vehicle damaging block and setting the car on fire from a resulting massive oil leak. There was no prior damage leading up to the incident nor any indication to my knowledge that there were any concerns with my car till it was too late unfortunately.

car image   Engine Oil Leaking problem of the 2006 Hyundai Sonata 24
Failure Date: 07/30/2014

The system warning lamps illuminated, then the engine shut off and would not restart. Evaluation showed that the alternator had failed and was covered with engine oil which had leaked from the front valve cover gasket onto the alternator. This failure is the same as NHTSA campaign number 14v415000, which covers another Hyundai vehicle.

car image   Engine Oil Leaking problem of the 2008 Hyundai Sonata 25
Failure Date: 04/25/2014

Driving approximately 50 mph when I heard pop. Smoke came from under hood. Pulled over. Popped hood. Smoke coming from engine. Checked dipstick and no oil. Never had oil leak. No oil light ever came on. No no check engine light. No overheat or hot engine light. Just a small fire underneath the engine on ground. Bought oil that just leaked immediately after putting in. No warning. No signals. No alerts. Blown engine. They want $5300 for a used engine.

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