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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
yep
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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
Sharpie36
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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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