2016 HYUNDAI SONATA Engine And Engine Coolingengineoillubrication Problems

See attached document for complaint

THIS VEHICLE AND MODEL HAVE A DEFECTIVE ENGINE; I HAVE MADE SEVERAL ATTEMPTS SINCE I PURCHASED THIS VEHICLE FROM THE DEALERSHIP TO HAVE THIS ISSUE CORRECTED, AND NOTHING HAS BEEN DONE. THIS IS A VERY COMMON ISSUE WITH THIS PARTICULAR ENGINE, AND IT IS A WELL-KNOWN PROBLEM; THERE ARE SEVERAL CLASS ACTION SUITS REGARDING THIS ENGINE, AND THE MANUFACTURERS STILL HAVE NO RESOLUTION FOR IT. THE VEHICLE REQUIRES CONSTANT NEW OIL IN BETWEEN OIL CHANGES AND HAS BEEN LIKE THAT SINCE NEW. THE ENGINE BURNS OIL, AND IT IS NOT GOING ANYWHERE, NOOEN SEEMS TO KNOW.

We purchased a 2016 Hyundai Sonata in December 2020 for our son who is in college. In early August of 2022, my son noticed his oil light was coming on before it was time for an oil change. He had the vehicle topped off and maintained regular oil change and service schedule. While in for service at Fitzgerald Hyundai in Rockville, MD, August 2022, they replaced the spark plugs (4 cylinder tune-up) at 108,127 miles. The car continued to burn a lot of oil, so another appointment was scheduled at the dealership in Rockville September, 2022 at 111,792 miles. An oil and filter change, complete 23 pt. Vehicle Maintenance Inspection was performed, and all fluids topped off. The vehicle continued to burn oil at an unacceptable rate well before an oil change was required. My son continued to get oil changes and top off before the standard mileage. Another appointment...

Huge amounts of oil consumption, have to refill all oil every 20-30 days. Car shut down on highway and went into limp mode, had to impede traffic to attempt to pull over safely. Potential known issue with Theta II engine, but dealership is declining a fix.

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at 45 MPH, she smelled a strong burning odor. The engine oil warning light illuminated. The vehicle was taken to the dealer who diagnosed that there was an oil leak. The dealer replaced the engine oil; however, the failure reoccurred while driving. The vehicle was taken back to the dealer twice, but the dealer diagnosed that no issues were found. The dealer replaced the engine oil again; however, the failure persisted. The contact stated that upon servicing the vehicle, the independent mechanic confirmed that there was an oil leak. The dealer was notified of the failure and advised the contact to take the vehicle in for a diagnosis. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 45,000.