335i blowing smoke only on start ups

Daman1702 · 10-23-2020, 06:02 PM

So my 2008 e93 just started blowing smoke from the exhaust. It's a thick gray smoke and smells more like fuel then oil but I'm not a expert. I am burning oil at about a quart every 2-3 weeks wich is about 500-750 miles. I have mhd burble tune enabled but when I turn it off I can't notice a difference. I have noticed low speed burbles in 3 or 4 gear coming to a stop it will have a little natural burble even tho my mhd burbles are at 0 for regular drive.[IMG][/IMG]

Bimmer_Engineer · 10-23-2020, 07:35 PM

Probably your valve stem seals...they drip oil slowly while the car isn’t running and then when you start it up it burns off. I added at205 seal conditioner with my last 2 oil changes and it’s helped a lot...

bleicht · 10-23-2020, 08:16 PM

I encountered something like this at around 130k miles and replaced my turbos.

10-23-2020, 06:02 PM	#1
Daman1702 New Member 0 Rep 19 Posts Drives: 335i 2008 e93 Join Date: Aug 2020 Location: New york iTrader: (0)	335i blowing smoke only on start ups So my 2008 e93 just started blowing smoke from the exhaust. It's a thick gray smoke and smells more like fuel then oil but I'm not a expert. I am burning oil at about a quart every 2-3 weeks wich is about 500-750 miles. I have mhd burble tune enabled but when I turn it off I can't notice a difference. I have noticed low speed burbles in 3 or 4 gear coming to a stop it will have a little natural burble even tho my mhd burbles are at 0 for regular drive.[IMG][/IMG]
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10-23-2020, 07:35 PM	#2
Bimmer_Engineer Lieutenant Colonel 1044 Rep 1,667 Posts Drives: 2007 335i Join Date: May 2018 Location: Louisiana iTrader: (0) Garage List 2008 Porsche Boxster [0.00] 2016 Mercedes Benz ... [0.00] 2007 BMW 335i [9.50]	Probably your valve stem seals...they drip oil slowly while the car isn’t running and then when you start it up it burns off. I added at205 seal conditioner with my last 2 oil changes and it’s helped a lot...
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10-23-2020, 08:16 PM	#3
bleicht Private 8 Rep 52 Posts Drives: 08 335i Join Date: May 2011 Location: Socal iTrader: (0)	I encountered something like this at around 130k miles and replaced my turbos.
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