The biggest issues with the 722.9xx 7-gtronic have been the software.
We had lots of BS like germany installing AWD valvebodys in RWD cars and
V8 valvebodys in 6cyl cars. There were some issues with pick-up tubes
being installed upsidedown and a snap-ring popping out.

That has all died off months ago and all in all the trannys have been less trouble than the old .6 5spd.

The software is always the trouble. I just put new software in my 06 ML
and now it shifts flawlessly. Finaly!

AMG is also now using the .9 behind all the new m156 6.2 V-8's.
Seems to be holding up well.

The only cars that don't use it are 4-matic cars, SLR, Maybach, SL55, G55K, and all V-12 cars.
Even the venerable 463 gets the 7spd this year.

I wouldn't be affraid of owning a 07 ML CDI. They may be a few bumps
in the road with software upgrades, but it should be fine.

DR.D

__________________
Dr.Diesel -
Shop Foreman
Master Guild Mercedes-Benz Technician.

Think the dealer is expensive? Do you know how much it costs to train a dealer tech? Or buy the required MB special tools to have on hand?