White smoke

[gcharala]

Hello BMW people
I have a BMW X5 2001 4.4.
for the last month or so when the engine is already warmed up and car has been sitting OFF for 5-10 minutes, i would start up the engine it revs up and then turns off. It will do this 5-6 times in a row and i either have to press gas or shift to R, N or D in order not to turn off.

Yesterday while i was driving in the city i heard a hissing noise which lasted 30 seconds and then an unbelievable amount of white smoke.
The smoke was coming out only from the drivers side exhaust pipes and then it slowly disappeared. It smoked for about a minute.
The smoke was completely done so i decided to drive the car home.
5 minutes later the same thing happen. Hissing noise and then lots of smoke and then it cleared out.
i drove the car home since i was a 1 minute away from home
The car drives fine other than hesitation on hard accelaration

What do you think is it???
is CCV and oil separator the same thing?
my car does not have the ccv just the oil separator

RealOEM.com * Diagram Selection

why only the drivers side exhaust pipes smoke???

BTW i live in AZ its been 110 the last month except the last week low 100 with a lot of humidity.


Please help me
thanks