Great, thanks for reminding me about this too .

In regards to "looking" at your atf:
Many comments are made that the fluid looks dirty on their 722.6. MB has already addressed this issue as well. In a nutshell, just because it looks "black" doesn't mean the fluid is dirty, appearance is very deceiving on the 722.6 fluid. They use alot of graphite in the friction plates on these transmissions, and as most know, graphite is a very black substance, especially in it's liquid form (have you every used liquid graphite lube? Very messy stuff). But not harmful in any way, it just can make the fluid look quite dirty.

Gilly