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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > White smoke under hard acceleration



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      06-28-2013, 08:57 PM   #1
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White smoke under hard acceleration

could this just be tune related? It only lasts for a quick second and goes away when accelerating hard.
Just normal driving no smoke at all. That or its so light I cant notice it.
No smell of oil or antifreeze
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      06-28-2013, 09:02 PM   #2
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what turbos ? stock? how many miles? what fuel are you running?
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      06-28-2013, 09:05 PM   #3
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If it's pure white coolant is burning off.
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      06-28-2013, 09:06 PM   #4
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Quote:
Originally Posted by AK 335i View Post
what turbos ? stock? how many miles? what fuel are you running?
stock turbos 81k miles. 93 octane and E85 prob a 70/30 mix
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      06-28-2013, 11:13 PM   #5
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is it generally when you drive hard just after the car has warmed up or any time even after the cars been warm for a while ?
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      06-28-2013, 11:23 PM   #6
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Quote:
Originally Posted by AK 335i View Post
is it generally when you drive hard just after the car has warmed up or any time even after the cars been warm for a while ?
good question, I wanna say any time even after warming up. Mostly because I never floor it unless the oil temp is above 160

I have no cats and muffler delete too if that makes a difference
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      06-29-2013, 12:23 AM   #7
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kind of... if you had a set of cats you wouldn't notice it... a lot of people have had a little smoke like that and tried going back to stock for turbo warranty and they found nothing... if your logs are good and there's no smell or adverse effects and it doesn't get any worse, I wouldn't worry about it.

one thing you could do is go back to a tank of straight 93 and after it re-adapts, see if it's the same or not
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