lachuy85

I want to check my transmission fluid on the 07 is250 and change that fluid. I don't know where it located. Thanks

jbjones85

iTrader: (20)

From what I have read here on the forums there is not a way to check the fluid level since it is a "sealed" system.

Kurtz

iTrader: (1)

Correct...assuming it's an automatic not only is there no dipstick to check fluid level, the system is sealed and never requires any maintenance. (apart from visually insuring there's no leaks on an occasional basis). It's physically impossible to change a significant amount of the fluid.

lachuy85

wow!!! that mean I don't have to change the transmission fluid for the whole life of my car! That's awesome. But some of the mechanic told me to change that fluid every 30k mile. Is it better if I change fluid 30k mile or keep it never change? Thanks for your big advise!!!!

Kurtz

iTrader: (1)

It is physically impossible to change every 30k miles (or at any time)

If you dropped the entire transmission pan you'd still fail to remove roughly 80-90% of the fluid in the system.

It states at least a couple of places in the owners manual and maintenance schedule that it is a sealed transmission that never requires service.

lachuy85

oh wow! it's very useful information! Thank you so much Kurtz, you're awesome!!!