I have three 722.6 vehicles. Two do not have a torque converter drain so I assume to do a proper fluid change a flush is required. I had plans to do all three car as I like to stay on top of things but I wonder if this is wise with the information given.

I question the 'vested interest' of the dealer suggestions nowadays. Everybody seems to have a hand out and all I am only interested in is what will offer my wife a safe reliable car for the next three or so years. I drive a 85 300SD which I know well and have no worries.

After paying $30K for a VW Jetta TDI then having to spend another $10K to keep it going has left a bad taste regarding new(er) vehicles. I sold the Jetta and bought a the E320 which is an upgrade but we will miss the 45 mpg.

It seems like the 722.6 is pretty robust as long as it has the proper fluid level.
I just think replacing the filter and fluid in the pan would be wise. And, I'm curious to what I may find in the pan.