Item 5 is the transmission oil filter and item 6 is the warmer For coolant to trans oil.

My 2016 Honda Fit LX is currently at 26,827 mileage and im planning ahead to replace the transmission oil at 30,000 miles.

My question is should i attempt to replace the transmission oil filter or would this cause more harm than good by contaminating oil with coolant as i disassemble it. Should i leave it alone regarding the trans oil filter.

what would you recommend and how would you keep the different liquids from contaminating each other if you decide replacing it is the best.

 

The manual does not have a service for the transmission filter. That seems like overkill for 30k miles anyways.
I have a 2016 and have changed the transmission fluid (not the filter) twice, at 45k and 90k. I believe the 30k interval is suggested somewhere, and is probably a good idea. But I go by the service minder on the car.

 

Can't hurt. Lifetime filters don't exist IMO. That's what they call the ATF warmer btw at #6 and the ATF warmer filter at #5. The strainer filter is inside the transmission. If I was gonna do it, I'd replace items 5, 6, 7, 8, 9.