Quick question about my exhaust smoking?

Malaka1 · 06-24-2010, 01:13 PM

I am pretty sure that one of my turbos needs to be replaced.. As my car is warming up, I almost always have white/bluish smoke coming from the passenger side exhaust tip.
So my question is, would that be the front or rear turbo that is bad?

R1000K3 · 06-24-2010, 02:45 PM

White smoke during warm up is normal (water condensation), and the driver side pipe is closed so it will smoke from the passenger side only during warm up. If there is a blown turbo it would blue-smoke most when the engine is fully warm and during WOT, hard accelerations.

Malaka1 · 06-24-2010, 03:46 PM

I dont think it is water condensation it has a blue tint to the smoke and smells like oil.. It will smoke for a while too, unless I turn off the car it will just pour clouds of smoke all the way down the street. I have a fully divorced downpipe back exhaust so neither side is closed during startup, looking at some diagrams though makes me think if it is smoking from the passenger side exhuast than that is the rear turbo..?

onefastman · 06-24-2010, 04:52 PM

Could be, that would be much easier to replace. Also a video would be helpful

Malaka1 · 06-25-2010, 01:30 PM

So does anyone know which turbo would need to be replaced, the front or rear? It is only smoking from the passenger side exhaust I have catless dp's and a fully divorced exhaust so however they meet up after the downpipes..

scalbert · 06-25-2010, 01:42 PM

If fully divorced, it would be the front turbo.

Do you get smoke when warmed up and you stomp on it?

Malaka1 · 06-25-2010, 01:50 PM

When the car is almost fully warmed up and at idle..

scalbert · 06-25-2010, 01:52 PM

Quote:

Originally Posted by Malaka1

When I am at almost fully warmed up and at idle..

Only at idle. Interesting. One way to check for sure, pull the DP's and take a look.

Malaka1 · 06-25-2010, 03:24 PM

Quote:

Originally Posted by scalbert

Only at idle. Interesting. One way to check for sure, pull the DP's and take a look.

Ok, thanks.
Your from Woodstock, GA I used to live in Towne Lake hills n about 8 years ago. Ever go to Gondolier Pizza?

scalbert · 06-25-2010, 03:29 PM

Yep, I'm in TLHE, been here for 10 years. As for Gondolier, suprisingly no. Aren't they over on 92?

rbaldwin28 · 06-26-2010, 02:27 AM

If I were in your shoes I think I would take them both off and have them rebuilt. I don't see any reason to do just one. The car will be down for the same amount of time. I would bet the reason it doesn't smoke when fully warmed up is the metal expands and the seals work ok and when cold the metal shrinks and the seals can no longer seal.

06-24-2010, 01:13 PM	#1
Malaka1 General 107 Rep 919 Posts Drives: F30 335i 6MT Black Join Date: Jun 2009 Location: Clearwater, FL iTrader: (6)	Quick question about my exhaust smoking? I am pretty sure that one of my turbos needs to be replaced.. As my car is warming up, I almost always have white/bluish smoke coming from the passenger side exhaust tip. So my question is, would that be the front or rear turbo that is bad? Last edited by Malaka1; 06-24-2010 at 01:50 PM..
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06-24-2010, 02:45 PM	#2
R1000K3 Major 58 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	White smoke during warm up is normal (water condensation), and the driver side pipe is closed so it will smoke from the passenger side only during warm up. If there is a blown turbo it would blue-smoke most when the engine is fully warm and during WOT, hard accelerations.
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06-24-2010, 03:46 PM	#3
Malaka1 General 107 Rep 919 Posts Drives: F30 335i 6MT Black Join Date: Jun 2009 Location: Clearwater, FL iTrader: (6)	I dont think it is water condensation it has a blue tint to the smoke and smells like oil.. It will smoke for a while too, unless I turn off the car it will just pour clouds of smoke all the way down the street. I have a fully divorced downpipe back exhaust so neither side is closed during startup, looking at some diagrams though makes me think if it is smoking from the passenger side exhuast than that is the rear turbo..?
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06-24-2010, 04:52 PM	#4
onefastman Major General 163 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	Could be, that would be much easier to replace. Also a video would be helpful __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-25-2010, 01:30 PM	#5
Malaka1 General 107 Rep 919 Posts Drives: F30 335i 6MT Black Join Date: Jun 2009 Location: Clearwater, FL iTrader: (6)	So does anyone know which turbo would need to be replaced, the front or rear? It is only smoking from the passenger side exhaust I have catless dp's and a fully divorced exhaust so however they meet up after the downpipes..
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06-25-2010, 01:42 PM	#6
scalbert Major General 158 Rep 5,776 Posts Drives: '13 S4, '15 Q7 Join Date: Feb 2007 Location: Woodstock, GA iTrader: (8)	If fully divorced, it would be the front turbo. Do you get smoke when warmed up and you stomp on it?
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06-25-2010, 01:50 PM	#7
Malaka1 General 107 Rep 919 Posts Drives: F30 335i 6MT Black Join Date: Jun 2009 Location: Clearwater, FL iTrader: (6)	When the car is almost fully warmed up and at idle.. Last edited by Malaka1; 06-25-2010 at 03:23 PM..
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06-25-2010, 03:29 PM	#10
scalbert Major General 158 Rep 5,776 Posts Drives: '13 S4, '15 Q7 Join Date: Feb 2007 Location: Woodstock, GA iTrader: (8)	Yep, I'm in TLHE, been here for 10 years. As for Gondolier, suprisingly no. Aren't they over on 92?
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06-26-2010, 02:27 AM	#11
rbaldwin28 Lieutenant 15 Rep 408 Posts Drives: E92 335i Sport Prem. White Join Date: Aug 2009 Location: Carlsbad CA and San Diego CA iTrader: (0) Garage List 2007 335I [0.00]	If I were in your shoes I think I would take them both off and have them rebuilt. I don't see any reason to do just one. The car will be down for the same amount of time. I would bet the reason it doesn't smoke when fully warmed up is the metal expands and the seals work ok and when cold the metal shrinks and the seals can no longer seal. __________________ Procede Inside! AutobahnExotics, Vishnu DCI, AR Oil Catch Can, ETS Black Anodized Intercooler, Quaife LSD, Falken FK452, Mtech 6000k HID, 7000k Halos, 15%vlt Ceramic Tint, Matte Black Kidney Grills.
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