2015 Sonata transmission service - Hyundai Sonata Forum
 
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post #1 of 2 Old 02-01-2019, 02:15 PM Thread Starter
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2015 Sonata transmission service

I have been researching but so far have not been able to find the service interval for the transmission. I have a 2.0T with the 6 speed and drive it fairly hard. Currently have 41k on the dial and was wondering when the trans needed to be serviced. I usually service the trans at 30k intervals but since this is my first Hyundai I wanted to be sure before I do a drain and fill.
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post #2 of 2 Old Yesterday, 08:56 PM
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The manual doesn't really give a regular replacement schedule because the transmission is sealed and is supposed to be "lifetime" fluid; however, it is my opinion that the fluid needs to be replaced at least every 75,000-100,000 miles. The manual does give a schedule in the "severe maintenance" schedule section of 60,000 miles for the automatic transmission and 75,000 miles for the dual clutch transmission. I replaced mine at about 120,000 miles and the fluid was extremely dark, almost burnt so I suggest replacing it much sooner than that. It's normal to have the fluid be a dark red, but not black. At 41K, you are probably okay letting it go for another 20-40K miles.
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