E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Bluish White Smoke from Exhuast



Reply
 
Thread Tools Search this Thread
      04-16-2012, 10:57 PM   #1
delrosa81
E90 Fan
delrosa81's Avatar
Singapore
4
Rep
149
Posts

Drives: F10 LCI
Join Date: Mar 2008
Location: Singapore

iTrader: (0)

Bluish White Smoke from Exhuast

Anyone have any experience with the below problem?

My car is 2007 BMW E90 320i with the N46B20 engine.

My car, now consumes engine oil. When engine is switched off and left to rest for say an hour, after firing up, no issue. But if I try revving the engine hard in stationary position, I will see a huge cloud of bluish white smoke. No smoke at all during idle. Only when revved hard.

After driving for at least 15mins above, when I come to a stop, I try revving the car hard again, no bluish white smoke.

I have changed the oil seperator located under the intake manifold area. Are there any other pcv or hoses that might cause the engine oil consumption issue? Im also thinking my oil seperator might have been incorrectly installed.

Recently went to a workshop but they didnt bother to check but just straight said, Top Overhaul, common problem. 320i are all like that. They have done so many over the years.

I strongly do not believe a very well maintained 4yrs plus car with just 126,000km or 76,000miles of mileage would require an overhaul of any sorts. I have been scouring the net these few days to find out what is the reason but to no avail. Neither do I think valve seals are the culprit. Bcos there is no smoke upon startup from exhuast from cold.

There will only be smoke if the engine has run for awhile, left to rest for an hour or less, then there is the smoke if I rev hard.

Hope to get clues or ideas whats to be done.

Could the engine oil heat exchanger near the engine oil filter be the culprit if its clogged up or whatsoever?

Thanks!
__________________
Fully Stock F10 LCI 528i. Modded Driver though
Appreciate 0
      04-17-2012, 08:37 AM   #2
mike5809
Major
mike5809's Avatar
United_States
53
Rep
1,075
Posts

Drives: '11 335i M-Sport [LeMans Blue]
Join Date: May 2011
Location: York, PA

iTrader: (6)

Garage List
Many people will say rings, but I think the issues is in your head - possible issue with valves/seals or oil collecting somewhere in the head.

But I haven't worked on BMW engines, only Honda/Acura 4-Cyl. So I may be way off.
__________________

'11 335i M-Sport xDrive Coupe [LMB] COBB V3 & PTF Tune | E45 |4in BERK DP | VRSF 5in FMIC | BMS Intake | ER CP | Exotics Tuning CF Lip | CF Diffuser | Eibach Springs | Bilstein Shocks
'07 BMW 335i Coupe & BMW Z4 3.0i - Gone
Appreciate 0
      04-17-2012, 09:46 AM   #3
delrosa81
E90 Fan
delrosa81's Avatar
Singapore
4
Rep
149
Posts

Drives: F10 LCI
Join Date: Mar 2008
Location: Singapore

iTrader: (0)

Quote:
Originally Posted by mike5809 View Post
Many people will say rings, but I think the issues is in your head - possible issue with valves/seals or oil collecting somewhere in the head.

But I haven't worked on BMW engines, only Honda/Acura 4-Cyl. So I may be way off.
Thanks alot Mike for your advise
__________________
Fully Stock F10 LCI 528i. Modded Driver though
Appreciate 0
      05-03-2013, 10:13 AM   #4
earld2005
Registered
0
Rep
1
Posts

Drives: BMW 320 E90
Join Date: Mar 2013
Location: UK

iTrader: (0)

Bluish White Smoke from exhaust

Hi,

Sorry to bother you!

I know your issue in regards to the blue/white smoke was a while ago but I have the same issue???

I haven't changed the Oil Seperator but I have read a lot about the valve seals

Did you resolve this, and if so what was the answer?

Cheers
Appreciate 0
      05-03-2013, 11:54 AM   #5
7786
Private First Class
United_States
9
Rep
161
Posts

Drives: 2006 325i
Join Date: Apr 2013
Location: Iowa

iTrader: (3)

Does the smoke smell sweet? Sounds like your head gasket could be blown.
Appreciate 0
      05-03-2013, 04:50 PM   #6
e90pilot
Freight Dawg
e90pilot's Avatar
United_States
45
Rep
2,128
Posts

Drives: E90 325i
Join Date: Jul 2005
Location: Oakland, CA

iTrader: (3)

I'm gonna say rings. If it was the guides or seals you would see smoke off throttle. Get a compression and leak down check.
__________________
--Marcelo
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors
Appreciate 0
      05-03-2013, 09:04 PM   #7
delrosa81
E90 Fan
delrosa81's Avatar
Singapore
4
Rep
149
Posts

Drives: F10 LCI
Join Date: Mar 2008
Location: Singapore

iTrader: (0)

Quote:
Originally Posted by earld2005 View Post
Hi,

Sorry to bother you!

I know your issue in regards to the blue/white smoke was a while ago but I have the same issue???

I haven't changed the Oil Seperator but I have read a lot about the valve seals

Did you resolve this, and if so what was the answer?

Cheers

Hi, I resolved this finally by replacing my valve seals.
__________________
Fully Stock F10 LCI 528i. Modded Driver though
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 10:21 PM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST