All about time and money, exploiting consumer ignorance. TC bolt a challenge to remove and disaster if damaged.It doesn't make sense but if you get it done at a dealer they don't drain the torque converter either. I cant remember the reasoning but it comes straight from MB.
There is a screw-on torque converter itself. It is accessible and visible through a small window in front of the transmission. You have to rotate crankshaft to see it. Then configure tool to access it. Sometimes it is impossible to take that screw out because it seizes pretty bad.Hi guys any write-up update with the torque converter flush?