Gilly, transmission service question

[Lewis]

My wife picked up my 99 ML320 from the dealer the other day. Among other items, I had them do the trans service and I suspect it wasn't complete. The bill charged me for 5 qts of trans fluid vice the full 8 qts (7.9) listed in the owners manual. I suspect the 3 qt difference is because they didn't drain the torque converter though I specifically requested it. Gilly, does 3 qts sound about right for the difference?
I'd really be worried if they left the level 3 qts low, of course that aint easy to check without buying the dipsick.

[Gilly]

Usually you'll see a difference in shift quality if the level is incorrect. Possibly the tech or parts department just billed out the wrong quantity (an expensive mistake), or you could be right about the torque converter drain. The drain should still be there on a 99. 3 quarts sounds about right for the torque converter.

Gilly