2008 S63 with performance package
 

I have a question that I hope someone can clear up for me. I was speaking to the service manager at my dealer and he didn't sound very sure about some of my questions. I asked him about changing the oil in the LSD on my car and he indicated it's not necessary but hesitated.
This is the nicest machine I have ever owned and I want to take good care of it. I got it last month with 12,100 miles on it. Got 15k miles on it now.
I am an absolute stickler for changing fluids often since I keep cars for years and oil/radiator/brake fluid changes are cheap insurance for keeping metal and systems in top shape. Can anyone tell me if the LSD fluid is supposed to be changed and when?
Thanks for any assistance.
TonyC

doesn't look like there is an interval for it. To help you out here is the maintenance sheet.

http://www.startekinfo.com/StarTek/i...stedDocId=8746

The 2013 maintenance book specifies 40,000 miles for LSD oil changes in all classes that have them.