Hi I'm new to these discussions but I just recently bought a 2006 x5 3.0 6 cylinder. Anyways haven't had it two weeks and started noticing white smoke from tailpipes when I start it. Checked my oil and no water in oil and checked my coolant clean there too. Before I bought it I took it to a local BMW mechanic and they had it to the computer and said everything looked great it just needed some spark plugs and regular maintenance because it was close to a hundred thousand miles. On that note, I signed the papers and immediately started having problems. I am a 36-year-old housewife that my husband is a diesel mechanic and we have a tractor repair business so I know the basics of cars and I changed the spark plugs all of them, the coil packs all of them, all O2 sensors,the cam sensor, and still the same thing. I went ahead and changed all of that just because it was time to do that anyways. The only thing left was because the valve and the oil separator CCV to be replaced. I kept getting codes of misfires, lean bank one and two etc. constantly even after I've done all of that. After starting my engine and trying to get the oil cap off I decided I would change the ccv . I called local bmw dealership spoke to parts and got the ccv/oil separator . Well I found a DIY video and I CHANGED IT MYSELF. Oh it was no easy task and took me almost eight hours and I didn't have to take the intake off either. Finally finished and started it praying I out everything back correctly . I was pretty sure I did bc I took pics along the way . Anyways no smoke , no misfired and if I , a 36 yr old woman can do it anyone can . You need patience bc I am hoarse from cursing the car while working on it.
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