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2006 E85 2.5L White Smoke

Discuss problems you have had or are having with your Z4
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andresreichardt
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2006 E85 2.5L White Smoke

Post by andresreichardt » Sun Apr 14, 2019 1:54 pm

Hello,

I am worried about the smoke that my E85 produces when on idle.
After it has been driven for 5 minutes, a lot of white smoke comes out of the tailpipe with a heavy smell of burnt oil.
Whilst driving or on the motorway I can't see any smoke or smell anything, but as soon as I stop, the oil "cloud" can be seen for a while.
The strange thing is, that sometimes it does not happen. Thinking about it, perhaps I see less smoke if the clutch is depressed.
The motor runs fine, no rough idle, no strange noises or rattles. The temperature stays in the middle, etc.
It is consuming about one litre of oil per 500 miles.

Does anyone have any idea of what it could be?

Thanks!!!!

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Smartbear
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2006 E85 2.5L White Smoke

Post by Smartbear » Sun Apr 14, 2019 2:38 pm

Hi, if it’s a white cloud it’s more than likely condensation-the oil burning doesn’t usually show out the pipes but is commonly caused by a banjaxed ccv system.
Operating the clutch pedal has nothing to do with this, or the price of fish :thumbsup:
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
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patriot66
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2006 E85 2.5L White Smoke

Post by patriot66 » Sun Apr 14, 2019 9:09 pm

Wow ! One litre per 500 miles ? :o I'd be worried if that was mine. Burning oil smoke from the exhaust is usually blue'ish in colour. Steam/condensation is white.
Are you sure you don't have an oil leak in the engine bay that is burning off on the engine/manifold/exhaust and blowing back under the car ?
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buzyg
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2006 E85 2.5L White Smoke

Post by buzyg » Sun Apr 14, 2019 10:48 pm

I was of the opinion that white smoke from the exhaust, with a hint of oil thrown in was a sign of a failing head gasket. Hope that is not it. But get it checked out soon or you could do some serious damage.
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ph001
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2006 E85 2.5L White Smoke

Post by ph001 » Sun Apr 14, 2019 11:07 pm

Won’t be head gasket. Bunged up CCV for sure (crankcase ventilation valve). There will be oil in the inlet tract.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

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andresreichardt
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2006 E85 2.5L White Smoke

Post by andresreichardt » Mon Apr 15, 2019 8:13 pm

Thanks for your help. I am having the CCV chequed. I will let you know.

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ph001
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2006 E85 2.5L White Smoke

Post by ph001 » Thu Apr 25, 2019 8:20 pm

Any news OP?
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

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