During warm weather, if the car been parked for 10-30 min, on the next start, then engine fan goes off to max speed for few min. No codes, temp management is fine. Coolent level ok. Ac functions well. Anybody have that? Thank for info

Yes - engine gets heat soaked while stopped and when it starts again, internal temp meets the criteria for engine fan to run at high speed for a bit. My GLE did this, and my E classes do the same.

I don't see this as an issue. Most likely standard procedure when engine reaches a designated temperature.

My wife’s GLE350 does it all the time.
In contrast (under similar use) my 53, not so much, so there’s a noticeable difference in the way the four and six-cylinder engines dissipate heat.