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2Addicts | BMW 2-Series forum Technical Topics N20 (228i) / B46 (230i) Engine, Transmission, Exhaust, Tuning white smoke from exhaust, burning oil?

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      08-18-2023, 05:54 AM   #1
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white smoke from exhaust, burning oil?

2014 M235i, original owner. Never observed this white smoke issue before. I am not a mechanic but google around indicates possible:
Crankcase Ventilation Valve CCV/PCV valve issue
Damaged cylinder head

It's not a lot of smoke, just a bit. Passenger side exhaust pipe only. Exhaust sound is off too. Never seen it in almost 10 years of ownership. White smoke, mostly on ignition start up. Took it to a local BMW branded shop (not a dealer) and they basically said it's fine, keep driving, nothing too bad . Only thing they found was the turbo throttle pipe (aka charge pipe) is a bit cracked/damaged where it connects to the engine.

Ran the oil level check on the car and it's low, on the way towards below minimum levels . That doesn't seem good.

Thoughts? Opinions? Take it to another mechanic?
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      08-18-2023, 06:55 PM   #2
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Burning oil is usually bluish. Carbon is black. White is usually water/coolant.

Oil being THAT low is pretty concerning, whether it's related to your smoking issue or not. Definitely need a full checkup and probably well worth doing oil analysis too.
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      08-24-2023, 10:33 PM   #3
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Head gasket.....?????
Did you check the colour of your oil and have you replaced the charge pipe?
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      09-15-2023, 01:15 AM   #4
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Quote:
Originally Posted by TTR M240i View Post
Head gasket.....?????
Did you check the colour of your oil and have you replaced the charge pipe?
No.

I started it today and it was just a ton of smoke, so much even the engine compartment had smoke in it in just ~60 seconds. There is no way this is normal or okay to drive. I am making an appointment with a different BMW service shop around me.
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      09-15-2023, 06:31 AM   #5
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It's a lot worse now. This video isn't mine but it's basically the same as mine, even the same exhaust pipe (passenger side).

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      09-18-2023, 02:52 AM   #6
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Hope all goes well.
Keep us posted.

Out of curiosity, is car tuned?
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      09-18-2023, 03:22 AM   #7
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Quote:
Originally Posted by TTR M240i View Post
Hope all goes well.
Keep us posted.

Out of curiosity, is car tuned?
No, stock everything.
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      10-11-2023, 02:08 AM   #8
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Exclamation

Quote:
Originally Posted by TTR M240i View Post
Hope all goes well.
Keep us posted.

Out of curiosity, is car tuned?
Dealer says condensation from not driving the car. They checked everything else.

Well, better safe than sorry. It's true I don't drive the car much anymore since I started WFH full time. It used to be my daily commuter. Need to get it in the garage for the winter.

I guess it's my Sunday driver now .
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      10-11-2023, 11:15 PM   #9
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Phewwwww......
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