E90Post
 


 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Need some some advice. Rotten egg smell in car.



Reply
 
Thread Tools Search this Thread
      07-20-2010, 06:12 PM   #1
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

Need some some advice. Rotten egg smell in car.

The last couple of days I have noticed the inside of car smells like rotten eggs while the engine is on. I notice the smell gets worse while stopped. What the heck is this terrible smell. Help!!!!
jch8479 is offline  
0
Reply With Quote
      07-20-2010, 07:22 PM   #2
giants84
Second Lieutenant
 
Drives: 13 x6 5.0
Join Date: May 2010
Location: Brooklyn,New York

Posts: 215
iTrader: (0)

What gas station do you use, sounds like a catalytic converter. Low grade gas has sulfur emissions in it, upgrade your gas and it should fix the problem, if not then it can be costly to replace it.
giants84 is offline   United_States
0
Reply With Quote
      07-20-2010, 08:10 PM   #3
DevJ
Colonel
 
DevJ's Avatar
 
Drives: '14 Cayman S/IS350/RRS
Join Date: Nov 2007
Location: Tulsa, OK

Posts: 2,702
iTrader: (1)

Quote:
Originally Posted by giants84 View Post
What gas station do you use, sounds like a catalytic converter. Low grade gas has sulfur emissions in it, upgrade your gas and it should fix the problem, if not then it can be costly to replace it.
Sounds about right. Sulfur = rotten eggs smell
__________________
E92 M3. SOLD
New: '14 Cayman S PDK
Incoming: GT-R Black Edition
DevJ is offline  
0
Reply With Quote
      07-20-2010, 08:11 PM   #4
BTM
Banned
 
Drives: A///MERICAN!!!
Join Date: Mar 2010
Location: A///MERICA!!!

Posts: 10,314
iTrader: (11)

Garage List
Stop farting!



Sulfer = cats going. Hopefully switching gas helps bc its expensive as has been mentioned
BTM is offline   United_States
0
Reply With Quote
      07-20-2010, 08:20 PM   #5
E92-Lighting
BimmerPost Supporting Vendor

 
E92-Lighting's Avatar
 
Drives: Next Generation LED Lighting
Join Date: May 2008
Location: Walnut

Posts: 26,214
iTrader: (317)

Send a message via AIM to E92-Lighting Send a message via MSN to E92-Lighting Send a message via Yahoo to E92-Lighting Send a message via Skype™ to E92-Lighting
i feel your pain, the smell must be unbearable
__________________
E92-Lighting is offline   United_States
0
Reply With Quote
      07-20-2010, 08:29 PM   #6
zenmoused
Private
 
Drives: 328i, Phaeton
Join Date: May 2010
Location: NYC

Posts: 67
iTrader: (0)

Cats are usually warrantied for much longer than the general car warranty. I know on my Mazda and VW it's 100k miles. If it ends up being your cat chances are you're covered.
zenmoused is offline  
0
Reply With Quote
      07-20-2010, 09:03 PM   #7
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

I always run 93, dad mentioned it could be the microfilter. Are those costly to replace? How do u know if your cat is under warranty?
jch8479 is offline  
0
Reply With Quote
      07-21-2010, 11:08 AM   #8
JuppiOne
Captain
 
Drives: everyone crazy
Join Date: Feb 2010
Location: MO

Posts: 691
iTrader: (4)

+1 to the low grade gas, or may be you have some rotten eggs under your seat.

try a bottle on good quality fuel system cleaner, such as Techron, it may help, worth a try for $7.00
JuppiOne is offline  
0
Reply With Quote
      07-21-2010, 01:16 PM   #9
Castel
Captain
 
Castel's Avatar
 
Drives: BMW 335i Coupe
Join Date: Jul 2008
Location: Portland, OR

Posts: 742
iTrader: (6)

Yep, Catalytic Converter. If gas change doesn't help then it might be damaged and in need of replacement. This could mean that your fuel/air mixture is too rich and this potentially damages the cats.
__________________

335i Coupe / SG on BK / 6MT / ZSP / ZPP / ZCP / NAV / CA
Alufelgen SF71 19"s | MTech front & rear + CF diffuser + Quads | M3 Sideskirts | OEM SSK | M Interior | LUX H8 | M3 Spoiler | ModmyNav
Castel is offline   United_States
0
Reply With Quote
      07-21-2010, 02:15 PM   #10
Kroy
Brigadier General
 
Kroy's Avatar
 
Drives: E90
Join Date: Jul 2009
Location: Los Angeles, CA

Posts: 3,035
iTrader: (1)

Quote:
Originally Posted by jch8479 View Post
I always run 93, dad mentioned it could be the microfilter. Are those costly to replace? How do u know if your cat is under warranty?
It's easy to check that. Just take apart your cowl to check the filter. Only a few bolts to unscrew. I think the problem is going to be with your cat though.
Kroy is offline   United_States
0
Reply With Quote
      07-21-2010, 04:26 PM   #11
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

I did replace my air filter with a new factory air filter just a few days prior to this smell. I did it myself, could I of installed something wrong to make that smell? Everything was bolted back and harnessed in. Thank for all the input everyone.
jch8479 is offline  
0
Reply With Quote
      07-21-2010, 05:06 PM   #12
Brey335i
Brigadier General
 
Brey335i's Avatar
 
Drives: e46 ///M3
Join Date: Oct 2009
Location: Austin, TX

Posts: 4,737
iTrader: (11)

You're not running a catless exhaust setup are you?
Brey335i is offline  
0
Reply With Quote
      07-21-2010, 05:14 PM   #13
YouaintBeam'n
Registered
 
Drives: 2007 335i
Join Date: Jul 2010
Location: Northern VA

Posts: 4
iTrader: (0)

I believe you have 2 cabin air filters on your vehicle they should be located on either side of the firewall. They are fairly easy to replace just a couple of screws holding the covers on.
YouaintBeam'n is offline   United_States
0
Reply With Quote
      07-22-2010, 07:02 AM   #14
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

No, I have cats.
jch8479 is offline  
0
Reply With Quote
      07-22-2010, 10:23 AM   #15
badass335
Lieutenant Colonel
 
badass335's Avatar
 
Drives: 2007 335i E90 AT
Join Date: Jul 2007
Location: Surrey, BC

Posts: 1,803
iTrader: (10)

Have you had any work done on the car or is it totally stock. I mean stereo etc too. I had this issue with my last BMW and turns out, the breather vents in the trunk. The installer decided to remove so it was sucking in the exhaust. Enough to really stink up the car!
badass335 is offline   Canada
0
Reply With Quote
      07-22-2010, 11:17 AM   #16
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

New gas and treatment did the trick, thank everyone for all of your help. Interested in buying BMS powerbox, any feedback regarding the install and performance gain?
jch8479 is offline  
0
Reply With Quote
      07-22-2010, 01:07 PM   #17
jlstyle
Major
 
jlstyle's Avatar
 
Drives: E92 335i
Join Date: Jun 2008
Location: nj

Posts: 1,301
iTrader: (0)

Check exhaust piping under your car.
You might have caught a plastic bag on it.
If that's the case, it will take few weeks to completely burn it off.
__________________
09 E92 335i Coupe
Jet Black/Coral Red/Sports Pkg/Prem Pkg/Cold Weather/Navi/PDC/Ipod/6MT
jlstyle is offline  
0
Reply With Quote
      07-26-2010, 07:25 AM   #18
jch8479
Enlisted Member
 
Drives: 2006 330i
Join Date: Dec 2009
Location: wilmington, NC

Posts: 33
iTrader: (0)

Now now, what BMW that you know of before 2000 has cloth seats?
jch8479 is offline  
0
Reply With Quote
      07-26-2010, 11:19 PM   #19
adikoni
New Member
 
Drives: 328i, volvo s40
Join Date: Jun 2010
Location: Calgary AB

Posts: 26
iTrader: (1)

Quote:
Originally Posted by patrickch View Post
+1 to the low grade gas, or may be you have some rotten eggs under your seat.

try a bottle on good quality fuel system cleaner, such as Techron, it may help, worth a try for $7.00

I would not recommend this. All these fuel additives do nothing to the cat. If anything they cause the issues. By cleaning your fuel line and injectors you are actually burning the crap out which in turn sticks to the platinum in the cat. As mentioned before your fuel to air ratio is off and you have unburned gas (possibly). That would also be the cause.

Find a big ass hill gun it up the hill, if it's the cat then it will stink 10 times stronger. I had that on my volvo, took it for a trip in the mountains, smelled bad for a bit but then it cleaned it self out. I guess from all the driving up the hills and mountains it got super hot and burned it self off.
adikoni is offline   Canada
0
Reply With Quote
      07-26-2010, 11:41 PM   #20
jayely1
Lieutenant Colonel
 
jayely1's Avatar
 
Drives: 335i
Join Date: Jun 2008
Location: New Mexico/Illinois

Posts: 1,923
iTrader: (1)

AC??
jayely1 is offline  
0
Reply With Quote
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 -5. The time now is 08:24 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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