White smoke from the exhaust is a sign of a problem in your BMW. If it happens, then there might be a failed coolant tank, unusual oil leaks, damaged cylinder head, broken fuel pump injector, or issues in the engine control unit. See the mentioned slideshow to know more about the main causes of white smoke from the exhaust of your BMW.
4. When you found an
unfortunate situation
where the white smokes
continuously coming
out of the engine, let it
warm up for than a
couple of minutes.
5. There are several internal
problems found in your
BMW, it’s important to
address these issues so
that your engine and
exhaust system do not get
damaged.
14. When the cylinder head is
cracked or damaged, then
the coolant will begin to
leak out of it. In this way, a
small amount of coolant
leak out and mixed with
the engine oil.
15. When this happens, the
oil will become
contaminated in the
BMW and the white
exhaust smoke coming
out of the tailpipe.
20. If you have a faulty
engine control unit in
your BMW, then it may
throw off the timing of
the fuel pump injector
and cause white smoke
from the exhaust system.
21. In these cases, you have to
fix or reprogram the
engine control unit so that
you will get the correct
timing of the fuel pump
injector.