335 4dr ifle white smoke??

[E90K1D]

HeyI have a bmw 335 sedan and I'll go for a drive with the car go get something to drink and come back to my car and see my exhaust is blowing a lot of white smoke and it smells horrible!! What can it be??

[Hooker52]

Does it smell like rotten eggs? If so, could be bad cats?

[E90K1D]

Yes it smells like that but I have secondary cat delete

[d21spike]

Yes it smells like that but I have secondary cat delete

If it smells like fuel then it could be possibly injectors. More information is needed such as color of smoke, what the smoke smells like (eggs, plastic, fuel, etc), miles, injector index values, recent maintenance, miles on turbos, any recent work done, etc. It could be injectors, turbos failing, exhaust valve seals, piston rings, blown head gasket, malfunctioning pcv system, cracked valve cover gasket, and so on...

[trohde78]

white = coolant

[E90K1D]

It smells like burning plastic there we go!!