E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 12-06-2012, 12:48 PM   #1
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Loss of Coolant/Blue/White Smoke/yellow gunk

My BMW has been running a little weird, it has a little of that yellow gunk on the oil cap and inside the valve cover, also its been smoking a little white out the tailpipe but that may be due to humidity. When its first started it has blue smoke and is idling weird for about a minute then runs fine. It needs a camshaft position sensor and that is on the way. I am losing coolant somewhere but i cannot find a leak, after 2 days the coolant light comes on saying its low but its not in my oil. Could it be burning it? Headgasket is going? CCV valve need cleaning? What do yall think?
metlic53 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 12-06-2012, 12:50 PM   #2
msane3
Registered User
 
Join Date: Nov 2010
Location: san diego, ca
Posts: 77
My Ride: 2007 335i
That doesn't sound very good. I'm betting on a bad head gasket. Have you overheated it recently?
__________________
msane3 is offline   Reply With Quote
Old 12-06-2012, 01:01 PM   #3
boostedisbetter
Registered User
 
Join Date: Mar 2011
Location: Tampa, FL
Posts: 1,615
My Ride: 03 S2000
HG. Check and see if your oil is milky. Water is going somewhere, and if you can't find it, odds are it's seeping through the HG and into the cyls.
__________________
carsig
boostedisbetter is offline   Reply With Quote
Old 12-06-2012, 01:20 PM   #4
Robaidh
Registered User
 
Join Date: Dec 2012
Location: Isle of Skye
Posts: 87
My Ride: e46 318 2.0 coupe
If its white smoke its usually water burning if its blue is oil and black usually fuel, all though it could just be condensation. Try a compression test
Robaidh is offline   Reply With Quote
Old 12-06-2012, 02:15 PM   #5
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
My oil is never milky, I just ran it 3k miles and changed cuz I just bought it the oil looked just like it came out of the bottle. I can't find a leak but I lose about a liter of water a day. First time to smoke blue today, I put exactly 7 quarts of oil in. It sputters at start up but I think that's the cps needing replaced, after a few minutes it runs and idles great, only white smoke ever so often but yesterday was really humid so ill have to try a different day to check the smoke
metlic53 is offline   Reply With Quote
Old 12-06-2012, 02:16 PM   #6
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
I haven't overheated it since I bought it
metlic53 is offline   Reply With Quote
Old 12-06-2012, 03:25 PM   #7
GRIDLOCK
Registered User
 
Join Date: May 2006
Location: OC
Posts: 2,281
My Ride: E36 / E46
Time for an Engine Compression Test + Cylinder Leak Down Test.
__________________

Have an EVAP code? Replacing gas cap did not fix? Give me a holler, I can do a smoke test for ya.
GRIDLOCK is offline   Reply With Quote
Old 12-06-2012, 04:17 PM   #8
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Ok my dad can do a compression test on it
metlic53 is offline   Reply With Quote
Old 12-06-2012, 05:43 PM   #9
nae36
Registered User
 
Join Date: Sep 2012
Location: iowa
Posts: 70
My Ride: 05 330 ZHP
does the white smoke smell sweet?
__________________
e36 325is track car in the making, e34 m5
nae36 is offline   Reply With Quote
Old 12-06-2012, 06:20 PM   #10
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Not sure ill have to smell it once I get off work I drove my jeep instead of the bimmer
metlic53 is offline   Reply With Quote
Old 12-06-2012, 09:35 PM   #11
325xittt
Registered User
 
Join Date: Apr 2010
Location: Reading, PA
Posts: 173
My Ride: 2003, 325 XIT
My guess is a head gasket or cracked head allowing antifreeze into a cylinder or the intake. This will blow the white sweet smoke out the tail pipe. The yellow gunk is an oil/antifreeze froth. Not good
__________________
325xittt is offline   Reply With Quote
Old 12-07-2012, 06:51 AM   #12
boostedisbetter
Registered User
 
Join Date: Mar 2011
Location: Tampa, FL
Posts: 1,615
My Ride: 03 S2000
You better hope it's a HG and not the head A HG can still be bad even if you don't have milky oil. Compression test will show all. keep us informed.
__________________
carsig
boostedisbetter is offline   Reply With Quote
Old 12-07-2012, 12:48 PM   #13
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Quote:
Originally Posted by Tampa02e46 View Post
You better hope it's a HG and not the head A HG can still be bad even if you don't have milky oil. Compression test will show all. keep us informed.
I will, if its a headgasket i'll just replace it. ever seen anyone do a port and polish and maybe bore it to increase displacement? while im in there i may do that if theres enough HP increase.
metlic53 is offline   Reply With Quote
Old 12-07-2012, 01:14 PM   #14
pleiades
Registered User
 
Join Date: May 2012
Location: Oregon
Posts: 127
My Ride: M52TU
CCV system would explain the emulsified oil/water mayo on your oil cap. The CCV can't be cleaned but it will clean itself a bit if you drive the car like it was meant to be driven. Lots of short in-town trips will turn it into a mayo factory....

No oil in coolant and no coolant in oil? If the CCV system gets clogged, it can be a good source of excess oil being sucked from the sump and cycled back through the intake manifold and burned.

If you are losing coolant repeatedly after topping up, you'll be relatively lucky if that turns out to be an external leak. Have you looked hard at all the cooling/heating hoses and their connections to everything? The heater inlet pipes that connect to the engine block behind the water pump are almost impossible to see, let alone service, without removing the intake manifold, alternator, and OFH. More and more sixes are showing up on the forums with these hoses going bad and leaking. External leak should leave white specky traces (if you use BMW coolant).

Might be good idea to have the car read for any stored fault codes.
pleiades is offline   Reply With Quote
Old 12-07-2012, 02:21 PM   #15
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Quote:
Originally Posted by pleiades View Post
CCV system would explain the emulsified oil/water mayo on your oil cap. The CCV can't be cleaned but it will clean itself a bit if you drive the car like it was meant to be driven. Lots of short in-town trips will turn it into a mayo factory....

No oil in coolant and no coolant in oil? If the CCV system gets clogged, it can be a good source of excess oil being sucked from the sump and cycled back through the intake manifold and burned.

If you are losing coolant repeatedly after topping up, you'll be relatively lucky if that turns out to be an external leak. Have you looked hard at all the cooling/heating hoses and their connections to everything? The heater inlet pipes that connect to the engine block behind the water pump are almost impossible to see, let alone service, without removing the intake manifold, alternator, and OFH. More and more sixes are showing up on the forums with these hoses going bad and leaking. External leak should leave white specky traces (if you use BMW coolant).

Might be good idea to have the car read for any stored fault codes.
why cant the ccv be cleaned?
How is the car supposed to be driven?
i'll look some more for a leak, ever so often after i get home i hear a hissing sound but i cant find where its coming from, i thought that was where water was leaking but i cant pinpoint the location
metlic53 is offline   Reply With Quote
Old 12-07-2012, 03:42 PM   #16
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
Could be the CCV. Take off your spalsh shield and look around, if you are loosing coolant and there are no leaks its HG related. The CCV cant be cleaned because it gets clogged with gunk, you just need to replace it along with all the hoses.
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 12-07-2012, 04:10 PM   #17
dmax
Registered User
 
dmax's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 22,827
My Ride: '99 328i 1.04646 mu
OP...I agree that it could just be the time for a CCV...but that some long drives might clear up the issue. Water mixing with oil (from low gas tank, humidity in air) gets frothed up and can clog ccv...which means oil will be burned as it gets sucked into intake instead of separated and returned to oil pan.

The only symptom you have of HG seems to be the rough running that gets better soon. Monitor coolant level very accurately and reliably...in a.m. on level ground.

If you got this car within the last year or so, it's possible someone added some magic liquid to it to seal things up before you got it.

Don't panic quite yet! Go on a longish drive (2 hours or so) and see if that helps at all.
__________________


Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840

A recent set

dmax on the radio every Wednesday 7-9 p.m. NYC time. Call in! (661) 449-9340 watsonnwatson.com
dmax is offline   Reply With Quote
Old 12-07-2012, 06:02 PM   #18
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
Alright ill go for a long drive and fill it full of gas. I just hope the rough running is my sensor needing replaced. After 30 min of driving in traffic I do smell burning coolant like its hot and leaked out but don't see it anywhere...
metlic53 is offline   Reply With Quote
Old 12-08-2012, 06:35 AM   #19
330iPilot
Registered User
 
Join Date: Mar 2005
Location: Dallas, TX
Posts: 577
My Ride: Titanium Silver 330i
Quote:
Originally Posted by metlic53 View Post
Alright ill go for a long drive and fill it full of gas. I just hope the rough running is my sensor needing replaced. After 30 min of driving in traffic I do smell burning coolant like its hot and leaked out but don't see it anywhere...
What part of TX are you in? I might be able to help.
330iPilot is offline   Reply With Quote
Old 12-08-2012, 08:05 PM   #20
metlic53
Registered User
 
Join Date: Aug 2012
Location: Texas
Posts: 155
My Ride: 2003 BMW 330i
I'm in conroe, by the woodlands, roughly 50 miles north of Houston
metlic53 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON





All times are GMT -5. The time now is 12:22 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use