I know some of old first generation KingLongs of Depot 3 were transferred to Depot 4 (line 4) and newer KingLongs of Depot 4 were transferred to Depot 6 (former Depot 9)
After arrival of new Yutong BRTs.

If you know the numbers of the transferred buses, write - I will make the edit. Or, if you are sure that ALL buses transferred from 3 to 4.

It is interesting to know the fate of these buses
http://fotobus.msk.ru/search.php?cid=188&mid=6569&did=18185&num=&gos=&place=&route=¬es=&ptype=0&aid=all&auth=0&anydate=1&anypub=1&order=3

I don't know numbers, but older Kinglongs were transferred to Line 4 (Depot 4).Newer ones were transferred to Line 9. Some of Kinglongs and some of left door Shahab Khodro 2612Cs were also transferred to Depot 9 to establish night route of Line 9 (Night routes operate between 9PM and 5AM ).
Anyway, none of Kinglongs have been scraped or sold, all have transferred to other depots. Shahab Khodro 2612Cs have may be transferred to other depots as well.

I have the last time you noticed that new king long buses from the depot 3 is pasted numbers from a depot 9 http://fotobus.msk.ru/photo/1450178/. This is a red circle with the number at the top right. I think that these buses originally worked at the depot 9, then was transferred to the depot 3, and after the purchase of Yutong returned, now in depot 6. For these buses is the confirmation of the transfer depot 6 http://fotobus.msk.ru/photo/1450983/, http://fotobus.msk.ru/photo/1546175/. Now it would be good to know the year of their transfer from the depot 9 to depot 3