Hi there , does anybody know what could cause a cloud of white smoke when the car is started,I have a c280 1999 I had the engine flush always miantaned by mercedes specialist and at this point he 's just guessing what 's going on so am I there're no oil,leaks,coolant,or anything,could it be spark plugs, gas filter, the head gasket were opened and cleaned and still no change...anybody???????? thanks!!

 

you may have valve seals leaking oil into the cylinders so when vehicle is first started all that oil burns off right away-let the vehicle sit for a few days and then removed the spark plugs and look in all cylinders with a boroscope and see if there is any oil/coolant leaking down into the cylinders-your technician may have already done this but if not definately recomend it

 

If your not losing coolant,it may only be condensation in the exaust system.