Well, my good for life tranny in the ML lasted its life - about 150,000 miles worth.

Trans fluid black - like black paint. Little needle bearings in the pan. Rebuilt tranny + torque converter + shipping = $2295.00. I just finally got to installing it. Got fluid from the dealership at $7.75 per qt. Flushed the cooler and lines. I used 20 liters total, including wasting a bunch in the flush.

I knew better. I should have changed the fluid every 30k or so. I am changing again in 1000 miles just to be sure, then every 30,000. You say it's a waste? Let's see, less than $100 every 30,000 or $2,400 every 150,000.

You wanna believe MB on forever fill, fine. I learned something different. In all my years of driving, I have never had a trans go bad.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport