Q: Problem with starting - 2006 BMW 330xi

asked by on October 26, 2016

Hi! 5 months ago serepantin belt was torn. The belt and pulley/adjuster were replaced a piece from the torn belt was lodged behind the harmonic balancer which led to an oil leak from front crankshaft seal. Crankshaft seal was replaced and solved the issue. Shortly after as weather got colder it toke much longer and more tries for car to start till one day it stopped starting all together no power no crank nothing at all. I replaced the battery and it started. A day after on a very cold night car will make starting sound and attempt to start but stops after a minute after few tries smoke speared from underneath the car mainly and from underneath the manifold. Battery was replaced again with one with higher cca but still won't start. Do I need a higher cca battery or have the starter gone bad ? Could it possibly have to do with the previous replacement of crankshaft seal ? Please help thanks

My car has 138000 miles.
My car has an automatic transmission.

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