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 > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Thread Tools Search this Thread Rate Thread Display Modes
Old 02-08-2015, 08:26 PM   #1
Registered User
Join Date: Feb 2015
Location: Topeka, Kansas
Posts: 17
My Ride: 2002 325Ci coupe
Burning Smell coming from vents

I have a 2002 325ci, and whenever the A/C or heat is on, and i give my car some gas I get hit with this awful burning smell, almost smelling like exhaust. I'm not sure why I'm smelling this. The weird thing is, the smell only happens sometimes and when i took it to my local shop they had no clue and acted like I was crazy because they never smelled the burning smell while trying to see what was wrong. Has anyone had any similar issues and figured it out? Or does anyone have any suggestions? Thank you
Paul03 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 02-09-2015, 06:42 AM   #2
Zero. Leaks.
Solidjake's Avatar
Join Date: May 2008
Location: NYC
Posts: 24,936
My Ride: '02 330i 6MT
Most likely your valve cover gasket is leaking some oil which is going on your exhaust manifold and burning off.

Check the forum for valve cover gaskest DIY and you will see where it can leak, etc. The gasket with the 15 grommets should cost you no more than $50 and if you need a shop to do it no more than 1.5hrs at most
Solidjake is online now   Reply With Quote
Old 02-10-2015, 12:49 AM   #3
Registered User
Join Date: Feb 2015
Location: Philippines
Posts: 16
My Ride: Honda
Must be gasket problem..
Jas01 is offline   Reply With Quote
Old 02-21-2015, 03:55 AM   #4
Registered User
Join Date: Dec 2013
Location: Burbank, CA
Posts: 15
My Ride: 2003 325ci M56
I have the same problem, from what i can tell its intermittent due to varying pressure the engine is under (after hard driving i smell it alot) but i just replaced VCG and i noticed oil pan is also leaking now...im thinking my ccv is bad but unfortunately i have the M56 so i dont know of a way to even test it!
dck8267 is offline   Reply With Quote
Old 03-06-2015, 07:30 AM   #5
Registered User
Join Date: Mar 2015
Location: NH
Posts: 6
My Ride: 2001 325i
I've encountered this problem since day one.
Proverbs is offline   Reply With Quote
Old 03-12-2015, 10:13 PM   #6
Registered User
Join Date: May 2008
Location: Northwest
Posts: 399
My Ride: 328i
I had this problem when I hit about 110,000 miles. Just replace the VCG and Vanos Seals. Also, use brake cleaner spray to remove the dripped oil on the back side of the engine and exhaust manifold.
Optio is offline   Reply With Quote
Old 03-22-2015, 07:48 AM   #7
Registered User
Join Date: Jun 2012
Location: Michigan
Posts: 30
My Ride: 2004 330Ci
Agreed with the above posters, this is likely oil dripping on to your exhaust manifold and burning, however it does not necessarily need to come from a certain gasket. In my case, my oil filter housing was leaking. If possible try to ascertain the exact location of the leak; cleaning your engine and then driving it could help. Good luck!
Sh0ty is offline   Reply With Quote

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 11:42 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use