New 2009 2010 BMW Z4 - ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   New 2009 2010 BMW Z4 - ZPOST > BMW Z4 Forum (E89) > 2009-Current Z4 Forum (E89) General Discussion

Post Reply
 
Thread Tools Search this Thread
      11-29-2022, 06:46 AM   #1
jjustice77
New Member
0
Rep
14
Posts

Drives: 07 & 16 BMW Z4 & 2013 BMW X3
Join Date: Jul 2022
Location: Northern California

iTrader: (0)

Question Acceleration noise

Hello Everyone,

I am looking to upgrade to a 2016 Z4. When I drove it and accelerated the car, you could hear a noise like the turbo engaging. I have owned many turbo BMWs. I have never heard that. Is that normal? It also had a rough idle the dealership is looking into for me. I would appreciate any advice.

Thanks,
Jodi
Appreciate 0
      11-29-2022, 07:53 AM   #2
B21
Lieutenant
B21's Avatar
137
Rep
580
Posts

Drives: E89 Atacama Yellow 35is
Join Date: May 2022
Location: Scotland..God’s own country

iTrader: (0)

Which model of Z4 was it?

That would help….also what sort of noise….whistling, rattling etc:
__________________
Much modified 2011 Atacama Yellow 35is…previously a much modified 2012 Atacama Yellow 20i MSport
Change history here… https://www.dropbox.com/s/8h1vabklgz...0List.pdf?dl=0
Build thread here… https://z4-forum.com/forum/viewtopic.php?t=131886
Appreciate 0
      11-29-2022, 10:16 AM   #3
jjustice77
New Member
0
Rep
14
Posts

Drives: 07 & 16 BMW Z4 & 2013 BMW X3
Join Date: Jul 2022
Location: Northern California

iTrader: (0)

I would describe it as a whistle. It sounds like a turbo engaging. I have never heard of it in a BMW before. It has a lot of power when accelerating, so it's just the noise. It's a Z4 (E89) 28i with s-drive.

Jodi
Appreciate 0
      11-29-2022, 10:37 AM   #4
B21
Lieutenant
B21's Avatar
137
Rep
580
Posts

Drives: E89 Atacama Yellow 35is
Join Date: May 2022
Location: Scotland..God’s own country

iTrader: (0)

Well it could have been modified and that's the cause..it could be a boost leak but then normally you would get an error fault...could be the turbo is on the way out..normally 28i don't really whistle..perplexed..
__________________
Much modified 2011 Atacama Yellow 35is…previously a much modified 2012 Atacama Yellow 20i MSport
Change history here… https://www.dropbox.com/s/8h1vabklgz...0List.pdf?dl=0
Build thread here… https://z4-forum.com/forum/viewtopic.php?t=131886
Appreciate 0
      11-29-2022, 01:02 PM   #5
jjustice77
New Member
0
Rep
14
Posts

Drives: 07 & 16 BMW Z4 & 2013 BMW X3
Join Date: Jul 2022
Location: Northern California

iTrader: (0)

I didn't see any modifications. Yeah, There are no errors that show up.

Jodi
Appreciate 0
      11-29-2022, 01:20 PM   #6
KennyP
Lieutenant
KennyP's Avatar
Estonia
127
Rep
429
Posts

Drives: 2009 Havana E89 Z4 Sdrive35i
Join Date: Apr 2016
Location: Estonia

iTrader: (0)

On 35i when you flash the car with a tune and up the boost you do sometimes hear turbos spooling up. And with a dual cone intake its even more obvious.
Maybe it has a tune on it?
__________________
2009 35i DCT Havana brown with ivory white interior. Mods: Cobb stage 1+FMIC, Wagner EVO1 FMIC, BMS DCI, KW V3 suspension, M3 front control arms, Hardrace RTAB, Michelin Pilot Sport 4S tires.
Appreciate 0
      11-29-2022, 02:32 PM   #7
jjustice77
New Member
0
Rep
14
Posts

Drives: 07 & 16 BMW Z4 & 2013 BMW X3
Join Date: Jul 2022
Location: Northern California

iTrader: (0)

I'm not the best car person. But is there a way I can check that? Would it be obvious? I know what a turbo unit looks like. It totally sounds like it might. But I have never heard it before.

Thanks,
Jodi
Appreciate 0
      02-02-2023, 09:02 AM   #8
DubaiRich
Private
123
Rep
54
Posts

Drives: 2010 Z4
Join Date: Oct 2022
Location: Naples, Italy

iTrader: (0)

Garage List
2010 BMW Z4  [7.25]
Quote:
Originally Posted by Value72 View Post
Which model of Z4 was it?
The OP mentioned 2.8i SDrive.

OP, how miles on your 2016??
Appreciate 0
      02-02-2023, 10:42 AM   #9
paris1
Captain
88
Rep
745
Posts

Drives: 2013 35i Space Grey over Coral
Join Date: Oct 2014
Location: Northern Calif.

iTrader: (0)

Jodi: Just go find another 28i to drive and see if it has the same noise. BTW; if it sounds like turbo whine, it probably is turbo whine. My 35i has had turbo whine since day one. It's part of the deal on these cars!
Appreciate 0
      02-03-2023, 04:53 PM   #10
Jakeinaka
Enlisted Member
5
Rep
49
Posts

Drives: E89 Z4 20i
Join Date: Oct 2022
Location: Japan

iTrader: (0)

Try turning aircon on and off. I get a noise on my 20i when the aircon is on only.
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 04:48 AM.




zpost
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