95 E320, automatic gear moving sluggish?
 

Hi,
I have 1995 E320. Today on the way home i noticed that its acceleration was very very sluggish. In drive till shift gears at 2k revs even with my foot fully pressed i.e. it doesnt seem to be revving. it seems more of an electronic problem rather than a mechanical

The only thing that is different today than any other is that there is lot of humadatity and little bit foggy also. I have noticed that this thing happens when ever the weather condation is like that.

Recently i have also changed the tyranny oil along with the filter but there is no improvement. Most of the days i never have this problem but like wise stated above the moment there is humadity and the weather is foggy then i feel the transmission or the engine start searging and there is no acceleration.

Any help will be highly appreciated