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 > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > BMW 320d B47 whistle noise
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      10-23-2021, 06:29 PM   #1
Boof101
Registered
0
Rep
1
Posts

Drives: BMW 320D
Join Date: Oct 2021
Location: London

iTrader: (0)

BMW 320d B47 whistle noise

Hi
I am new here wanted to ask if anyone would know a issue I have. I bought a 320d 2017 with a B47 engine. At 2k rpm I hear this whistle noise. It only happens when you are driving. When stationary in parked you do not hear it. I checked the pipes and didnt notice any damage. Does anyone know experianced any thing like this?
Appreciate 0
      10-23-2021, 09:04 PM   #2
Enabled
Lieutenant Colonel
1397
Rep
1,791
Posts

Drives: 328xd Wagon, M2 Competition
Join Date: Jun 2018
Location: Houston

iTrader: (0)

You may have to pressurize the intake tract to make sure it's not leaking anywhere. Usually a smoke test is good for this.

Often seals at pipe ends can leak or become loose.
__________________
-2014 328d Wagon, 8HP. Self-tuned, 270hp/430ft-lbs.
-2019 M2 Competition MT, Alpine White. Self-tuned 560hp
-2016 Mini Cooper S, MT. Many plans.
Others:
-E36 328is. 2000 Z3 Roady. 2003 VW Jetta TDI Manual. Estoril Z3M Coupe.
Appreciate 0
      10-24-2021, 03:43 PM   #3
Sirus_The_Virus
New Member
10
Rep
16
Posts

Drives: BMW F30
Join Date: Sep 2021
Location: Cape Town

iTrader: (0)

Thats your turbo kicking in good sir
Appreciate 1
      12-01-2021, 07:41 AM   #4
imperyal
Registered
Portugal
0
Rep
3
Posts

Drives: BMW 420d F36
Join Date: Nov 2015
Location: Aveiro

iTrader: (0)

I have a 2016-03 420d (B47) F36 car.
Mine makes a whistle noise too, only when I'm on the gas, If I take the foot of the gas pedal, the noise stops.
The pitch of the noise changes depending on speed and not rpm, if I change gear, the pitch stays the same...
I had a F11 520d (N47) before. I didn't noticed a whistle noise on that car.
I don't know of anyone near Aveiro - Portugal that has the same engine to compare.
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 05:53 AM.




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