F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin > F30 2018 330i Whistling Air Conditioner
Studio RSR
Post Reply
 
Thread Tools Search this Thread
      06-28-2021, 12:14 AM   #1
JB_AZ
Enlisted Member
5
Rep
30
Posts

Drives: 2018 330i
Join Date: Jun 2021
Location: Arizona

iTrader: (0)

F30 2018 330i Whistling Air Conditioner

Hi, got my first BMW 2 weeks ago, a 2018 330i with 28k miles. After getting it home, I noticed anytime the AC is on, there is a constant, steady, whistling/high pitched tone. Whether on high or low, this whistling/tone is present and constant when the AC is on. It's not incredibly loud, but it is impossible to ignore. The sound never changes, never goes away, until the AC is off. If I just run the fan with no AC, there is no whistling noise. Otherwise, the car operates perfectly and seems to be in good shape.

Does anyone have any experience with this and what might be a remedy?
I appreciate you reading this. Thanks.
Appreciate 0
      08-22-2021, 10:32 AM   #2
IrishSpuds
Banned
United_States
149
Rep
247
Posts

Drives: 3 Series, Vette C6 GS, X5 M50i
Join Date: Jul 2021
Location: USA

iTrader: (0)

JB - check the cabin air filter. Something may be caught in it. It's a pig to access (u tube it!) it's in the passenger area behind the glovebox. Probably due for change anyway and about $10 at autozone or $100 at the stealership.
Appreciate 0
      08-26-2021, 06:20 AM   #3
herbalking
New Member
5
Rep
24
Posts

Drives: 320i
Join Date: Sep 2019
Location: serbia

iTrader: (0)

i had the same problem. My problem was that i dont have enough freon.
Appreciate 0
      08-30-2021, 02:29 AM   #4
Jimmert
Private First Class
No_Country
63
Rep
152
Posts

Drives: BMW 420i F36
Join Date: Aug 2018
Location: The Netherlands

iTrader: (0)

Indeed, a whistling aircon is an empty aircon. (Had the same and was gone after refilling)
Appreciate 0
Post 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



All times are GMT -5. The time now is 11:39 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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