first service
Dealer needs to 1) understand what they need to do-have the dealer master mechanic called to the service desk with a copy of the service description otherwise they will not have any idea what you are talking about; 2) have the gear oil for the differential on hand otherwise they must order it from AMG/Germany which takes time, and while doing that order the 3) seals and banjo clips which will be replaced (and need to be on hand or ordered from AMG/Germany which takes time).
Limited slip differentials need to be broken in to seat the clutch plates. They typically have a quick/early break in period-you change the gear oil to get rid of break-in particles created during this period. I believe the manual recommends the LSD service at 1900 miles; did mine at 2K.
Send me a PM and I can give you the name of the guy that works on my Black Series over there


