I think we need more inrormation here ....
Is the all the smoke you are seeing white?
Did you run through any water, rain, car wash etc?
Did you use your heater? Is used to sometimes use my heater driving from from the NJ shore in the summer when it was cool.
My best guess is you are have coolant overflow. Where did you fill the coolant level to?
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)