My ML350's 7G gearbox worked perfectly. So I thought.
But with cold start it was sometimes a little rough from 1 to 2. I thought that was just normal 'cold' behavior and all shifting became very smooth after 2 minutes of driving.
Still I decided to change the transmission oil and filter and it was a pleasant surprise that my 7G box became even more smooth than I thought possible and the rough 1 to 2 when cold completely disappeared.

/happy

 

Did you use a different trans fluid or filter? I changed mine and the cold wierd shift is still there. Only happens when overnight temps get below 35F. Mechanic checked the trans and all checked good.

 

check your front cv axles transfer case chain they could be making thump bang noises,im taking care of mine soon