thank you but of course Its the first thing that I've check, and there is no interesting information in that document.Here is the information from MB's Workshop tool:
MB 235.62 - Gear Oils (Rear axle gear) - Mercedes-Benz Specifications for Operating Fluids (mercedes-benz.com)
Did you watch a different video? He has the service printout in front of him.. turns the wheels.. and has a clip at the end talking about doing the Xentry stuff.. which is done while driving.. and then rechecking the oil. Some of wavecepter’s stuff can be nitpicked a little bit but he knows his way around a 45 and this looks pretty to spec.. he def dropped some super knowledge bombs for the DIY community and not everyone that is going to pull up a YouTube vid to change their diff oil is going to have access to Xentry anyway, actually most won’t.So, the video is not correct..
The rear diff WIS procedure includes turning the rear wheels together for 5 revolutions, while the fronts are blocked, before replacing the drainplug.
Also, the WIS indicates that after the diff is refilled and you use the Xentry to reset the oil replacement interval memory, to activate the rear solenoid 10 times using the actuate command in the Xentry and to look for a slight jolt in the rear end. Once the jolt is felt, then recheck the filler screw, to make sure the level is still good.
The key is to check after first test drive and add if necessary; most likely my tech did so. I also checked and it's full.This makes me curious. We've seen some reports of failed rear diffs. Is it possible they simply are not getting correctly filled during servicing?