N20 burning smell - Bimmerfest - BMW Forums



Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)

F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
The sixth generation BMW 3 Series Sedan F30/F31/F34 and the first first generation 4 Series Coupe F32/F33/F36. Get the latest 3 and 4 series pricing from our ordering and pricing guide sticky thread.

Reply
 
Thread Tools Display Modes
  #1  
Old 02-14-2020, 07:37 PM
HRush18 HRush18 is offline
Registered User
 
Join Date: Jul 2018
Posts: 50
Mein Auto:
N20 burning smell

320i with 35,000 miles kinda has a burning type smell while in sport mode being pushed to 5-6k rpm's. Temp gauge doesn't show it getting too hot and I don't see any oil dripping anywhere on the engine. Is this something to have checked out soon?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 02-14-2020, 08:18 PM
John MS John MS is offline
Officially Welcomed to the 'Fest
Location: Virginia, USA
 
Join Date: Oct 2014
Posts: 2,784
Mein Auto: 2014 Glacier Silver 328i
Drive belt slipping?
Reply With Quote
  #3  
Old 02-15-2020, 05:59 AM
carlson2005 carlson2005 is offline
Registered User
Location: Virginia
 
Join Date: Sep 2019
Posts: 22
Mein Auto: 2015 BMW 328i
When was your last oil change? Check for oil residue around the lower edge of the cap for the oil filter housing. When oil is changed the cap must be screwed down to the proper torque so it does not leak. A small leak makes a mess relatively quickly. Its also possible that when they removed the cap to change the filter some oil dribbled down the side. IIRC, oil that dribbles down will hit the alternator housing, which eventually gets hot enough to start burning it off.

Bruce
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 02-15-2020, 09:30 AM
HRush18 HRush18 is offline
Registered User
 
Join Date: Jul 2018
Posts: 50
Mein Auto:
Quote:
Originally Posted by carlson2005 View Post
When was your last oil change? Check for oil residue around the lower edge of the cap for the oil filter housing. When oil is changed the cap must be screwed down to the proper torque so it does not leak. A small leak makes a mess relatively quickly. Its also possible that when they removed the cap to change the filter some oil dribbled down the side. IIRC, oil that dribbles down will hit the alternator housing, which eventually gets hot enough to start burning it off.

Bruce
I just got the car but it shows that the last change was a little over 7,000 miles ago but I planned on changing it again this weekend. There looks like there's some dried oil on the alternator housing. I'm guessing once everything gets hot enough that's the oil I smell being burned
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
Today's Posts Search
Thread Tools
Display Modes

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



Forum Jump


All times are GMT -7. The time now is 08:49 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
© 2001- VerticalScope Inc. All rights reserved.