CL600 stalls when hot
 

I have a 2002 CL600 with 65000 miles. I have owned it for the last 3000 miles.

Since I had a B Service last week (perhaps a coincidence) it has started to stall when hot. When I say hot, the engine is up to operating temp and the external temp is 95 - 100 F.

If I stop for a short time at a store and then restart, when I select reverse it starts moving then stalls. After 3, 4 or 5 attempts it has moved far enough for me to select forward and off it goes without any apparent problems.

Any ideas?