Air Conditioner Weird Noise - Bimmerfest - BMW Forums

Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

Thread Tools Display Modes
Old 05-27-2011, 09:41 AM
cannottle cannottle is offline
Registered User
Location: Utah
Join Date: May 2011
Posts: 10
Mein Auto: 325i 06
Air Conditioner Weird Noise

So the other day i was driving and I noticed that a wierd noise was coming out from the dash mounted AC vents that are right up by the windshield. so i messed with the controls and it didnt really help. When i turned it off it went away. its kinda like a whiny buzzy sound. I dont think it's the auxiliary fan (i read that in some other threads) because it flickers on and off and frankly it just doesnt sound right I dont know what it is, does anyone have an idea what it could be?

Last edited by cannottle; 05-27-2011 at 09:45 AM.
Reply With Quote
Old 05-27-2011, 11:27 AM
markl53's Avatar
markl53 markl53 is offline
bimmerfest Supporting Member
Location: Gaithersburg, MD
Join Date: Nov 2004
Posts: 7,023
Mein Auto: 2014 535i
Sounds like some foreign material (leaf?) got stuck in the fan, or somehow in the vent. Is the noise present only when air is blowing through those upper vents?
Bimmerfest Supporting Member

2014 535i Individual | Azurite Black/Amaro Brown Merino | Premium | Cold | PDC | Rear Camera | Anthracite Hdr
Prior: 2011 535i AT | Black Sapphire/Cinnamon | Premium | Heated Sts | Nav | Sirius | Anthracite Hdr & Trim
Prior: 2008 335i 6MT Sedan | Black Sapphire/Terra Leather | Premium | Cold | CA | OEM Alarm
Prior: 2005 330i 6MT | Black Sapphire/Sand Leather | Premium | Cold | UGO | OEM Alarm
Reply With Quote
Old 05-27-2011, 02:44 PM
VDPHB VDPHB is offline
Officially Welcomed to the 'Fest
Location: San Diego, California
Join Date: Apr 2002
Posts: 374
Send a message via AIM to VDPHB
Mein Auto: F30 340i/E90 335i
If it's a subtle high pitched rotating whirring noise that is intermittent (for example only when turning), it's the blower motor. My dealer was aware of it and replaced it.
Reply With Quote
Old 05-27-2011, 05:04 PM
karlmalden karlmalden is offline
Registered User
Location: Metro Detroit
Join Date: Nov 2008
Posts: 56
Mein Auto: 2010 135i M Sport
Had the same problem and had the blower motor replaced under the CPO a couple of weeks ago.
Reply With Quote
Old 05-27-2011, 07:16 PM
johnc_22's Avatar
johnc_22 johnc_22 is offline
Squeal like a BMW
Location: Atlanta, GA
Join Date: Sep 2004
Posts: 6,604
Mein Auto: 2013 Audi A4
Is it RPM dependent? I had a whining noise that was RPM dependent and when they checked it out the refrigerant was low - topping it off fixed it. No leaks were found.
2013 Audi A4 - Premium+/Sport/MMI/B+O Audio
2007 BMW E90 335i (retired)
Reply With Quote
Old 01-15-2012, 12:22 PM
Redderz10 Redderz10 is offline
Registered User
Location: Bedford
Join Date: Jun 2011
Posts: 1
Mein Auto: E36 2.8i m tech sport
My e36 makes a weird nose when I'm doing bout 70..? I think it's coming through the vents.. Any 1 know wot this is
Reply With Quote

See More Related BMW Stories

air conditioner, noise, strange noise

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E90/E91/E92/E93 (2006 - 2013)
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 06:29 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.