[xj31]

You have a 3.7,Right? That has a Mercedes trans called a Nag and they dont want anyone messing with it.I think Mercedes feels most people are to stupid to check trans fluid.The srt 8 6.1 uses the same trans.If you check the maintenance schedule in your owners manual,you will notice that the trans fluid and filter change is not required ever.It is only recommended for the 545rfe trans.That is used with the 4.7 and 5.7.There is a special tool for checking the fluid ,its a dipstick that measures fluid level in millimeters and you are supposed to use a scan tool to check the trans temperature.I was told that Mercedes did not even want Chrysler to put a dipstick tube in the trans.The 05s have dipsticks but I don't know if that works in an 06 because the fill tube is different.