E90 320i white smoke coming out

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pakteh

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Jun 27, 2010
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hi all...my E90 320i got some problem..1.white smoke coming out from exhaust 2.when I drive for more than 2k mileage the system ask me to add 1 litre of engine oil..anyone can share with me the problem??already go to 3 workshop area shah alam n klang..repair cost around rm2k...is it ok??
 
you have to replace the piston ring which means its basically a full overhaul job. imo rm2k is very cheap.
 
Pakteh,

It's a common issues on 4 potter N46 engine. For the quoted amount, I assume it is valve seal replacement only. Almost equal to top overhaul job. That shouldn't include changing of CCV.

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Pakteh,

It's a common issues on 4 potter N46 engine. For the quoted amount, I assume it is valve seal replacement only. Almost equal to top overhaul job. That shouldn't include changing of CCV.
 
Hi bro, the white smoke coming out when you rev or in the morning. Or during idle you can see white smoke? If during idle you can notice white smoke then its piston ring. If you notice white smoke when you rev then its valve seal. RM2k is considered cheap. I was quoted RM 3-4K for valve seal.
 
Is it because the engine oil is seeping into the combustion chamber?

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Is it because the engine oil is seeping into the combustion chamber?
 
Need more info. When got white smoke and is it a lot. When engine cold, it's normal to have little white. It's cause by water vapor



Sent from my GT-I9100 using Tapatalk 2
 
slyder;851230 said:
Need more info. When got white smoke and is it a lot. When engine cold, it's normal to have little white. It's cause by water vapor



Sent from my GT-I9100 using Tapatalk 2


Yes your are right bro.

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slyder;851230 said:
Need more info. When got white smoke and is it a lot. When engine cold, it's normal to have little white. It's cause by water vapor



Sent from my GT-I9100 using Tapatalk 2


Yes your are right bro.
 
the white smoke coming out during idle..it's not when 1st start in the morning..actually i already did the top overhaul..renew the piston ring,valve seal n other small thing..cost me 4.2k including changing of gearbox oil and engine oil..thank all for the info
 


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