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 > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > N20 engine noise on "cold" start
GTB Performance
Post Reply
 
Thread Tools Search this Thread
      07-26-2012, 10:51 AM   #23
r3dbimmer89
The Coolest
United_States
9

 
r3dbimmer89's Avatar
 
Drives: F80 M3
Join Date: Nov 2010
Location: SoCal


Posts: 816
iTrader: (0)

Quote:
Originally Posted by The X Men View Post
I have owned quite a few cars with direct injection, the F30 is by far the worst sounding of them all. I am not so sure its not piston slap like the old GM and Toyota engines.
True, but I guess it's a BMW thing. N54 has a slight diesel idle as well but no where near as bad as the N20. The way BMW engineers probably designed the N20 was probably loosely based on some of their DI turbo diesels, of course not completely since diesels only use DI and extremely high compression instead of spark plugs and what not but still could be a possibility....
__________________
Past:12 E92 335i/ 08 E90 335i/02 E46 325i
Present:15 F80 ///M3
Appreciate 0
      07-26-2012, 11:55 AM   #24
E30M3Driver
Captain
10

 
E30M3Driver's Avatar
 
Drives: 13 335is, 89 M3, 97 M3
Join Date: Jan 2006
Location: Here, there


Posts: 781
iTrader: (1)

Garage List
2007 BMW 335i  [4.00]
1989 BMW M3  [4.10]
They sound like a diesel at idle to me regardless if they are cold or warmed up.
__________________


Performance Center Delivery, June 21, 2013: 2013 E92 335is | Le Mans Blue | Gray Leather with Black | 6MT | 19" Style 313's | Michelin Pilot Super Sports | BMW Carbon Fiber Rear Spoiler |
Appreciate 0
      02-11-2013, 04:42 AM   #25
Bruno28
First Lieutenant
Australia
7

 
Drives: 125i F20 M-Sport
Join Date: Aug 2010
Location: Sydney


Posts: 336
iTrader: (0)

Quote:
Originally Posted by E30M3Driver View Post
They sound like a diesel at idle to me regardless if they are cold or warmed up.
When i drove mine home it was nice sound. I went for a drive now and i was like "is this diesel?" sounds ugly even after doing for a spirited drive.
Appreciate 0
      09-24-2013, 01:30 AM   #26
ruzzi
Registered
0

 
Drives: f30 328i xdrive
Join Date: Sep 2013
Location: ct


Posts: 4
iTrader: (0)

I also noticed that at low speed after starting the engine, every time i lift my foot off the gas pedal, there is a "ssssss" noise coming from the engine or exhaust, it gets annoying as everytime i touch the gas pedal this noise comes out. this noise goes away when i switch to sport mode though. anyone else noticed this and know where the noise is coming from?
Appreciate 0
      09-24-2013, 11:04 AM   #27
Quakered
Second Lieutenant
England
2

 
Drives: BMW 328 Tourer F31
Join Date: May 2013
Location: London


Posts: 215
iTrader: (0)

Look on the bright side, the poor chaps with diesels have to put up with this dreadful noise all the time (and it is louder!)
Appreciate 0
      09-24-2013, 11:43 AM   #28
pkimM3r
Banned
92

 
pkimM3r's Avatar
 
Drives: m3 saloon in granny mode.
Join Date: Dec 2009
Location: lost angeles


Posts: 7,321
iTrader: (0)

Quote:
Originally Posted by ruzzi View Post
I also noticed that at low speed after starting the engine, every time i lift my foot off the gas pedal, there is a "ssssss" noise coming from the engine or exhaust, it gets annoying as everytime i touch the gas pedal this noise comes out. this noise goes away when i switch to sport mode though. anyone else noticed this and know where the noise is coming from?
its the turbo. lol
Appreciate 0
      09-24-2013, 01:14 PM   #29
Avian
Second Lieutenant
South Africa
5

 
Avian's Avatar
 
Drives: 2014 F21 BMW 118i M-Sport
Join Date: Aug 2013
Location: GP


Posts: 203
iTrader: (0)

Garage List
Quote:
Originally Posted by ruzzi View Post
I also noticed that at low speed after starting the engine, every time i lift my foot off the gas pedal, there is a "ssssss" noise coming from the engine or exhaust, it gets annoying as everytime i touch the gas pedal this noise comes out. this noise goes away when i switch to sport mode though. anyone else noticed this and know where the noise is coming from?
That's the turbo and I find it to be such an awesome sound! I feel like a little giggly kid every time I hear it
Appreciate 0
      09-24-2013, 01:34 PM   #30
pkimM3r
Banned
92

 
pkimM3r's Avatar
 
Drives: m3 saloon in granny mode.
Join Date: Dec 2009
Location: lost angeles


Posts: 7,321
iTrader: (0)

although one of my friend gave me shit for it: vroom pshhhh vroom psshhh
Appreciate 0
      09-24-2013, 05:48 PM   #31
kevbh
Private First Class
2

 
Drives: 2013 320i, E46 M3 track car
Join Date: Apr 2006
Location: Duluth, Georgia


Posts: 158
iTrader: (0)

I'm sure glad I came across this thread. The first time I started my car in the garage I jumped out and looked under it to see if the exhaust was properly attached! Sounds terrible.
__________________
2013 320i, 6sp Manual, Sport Package / 2003 M3 track car
Appreciate 0
      09-25-2013, 02:10 AM   #32
ruzzi
Registered
0

 
Drives: f30 328i xdrive
Join Date: Sep 2013
Location: ct


Posts: 4
iTrader: (0)

Quote:
Originally Posted by Avian View Post
That's the turbo and I find it to be such an awesome sound! I feel like a little giggly kid every time I hear it
yea but it only sounds like a proper turbo wastegate in sports mode. the sound i am talking about is only in the comfort and eco-pro mode, it happens with even slightest touch on the gas pedal. and it sounds more of like a rapid "click click click..." sound. i can be wrong since i never owned any turbo cars before, but in sports mode this sound goes away and i can hear the proper turbo valve sound.
Appreciate 0
      09-25-2013, 10:47 AM   #33
Avian
Second Lieutenant
South Africa
5

 
Avian's Avatar
 
Drives: 2014 F21 BMW 118i M-Sport
Join Date: Aug 2013
Location: GP


Posts: 203
iTrader: (0)

Garage List
Quote:
Originally Posted by ruzzi View Post
yea but it only sounds like a proper turbo wastegate in sports mode. the sound i am talking about is only in the comfort and eco-pro mode, it happens with even slightest touch on the gas pedal. and it sounds more of like a rapid "click click click..." sound. i can be wrong since i never owned any turbo cars before, but in sports mode this sound goes away and i can hear the proper turbo valve sound.
Hmm... Interesting I've never heard this "clicking" noise you talking about. The F30 I'm driving always sounds decent (turbo) no matter what mode I'm in.
Appreciate 0
      09-25-2013, 11:05 AM   #34
F32
Banned
7

 
Drives: BMW
Join Date: Jul 2013
Location: SF


Posts: 688
iTrader: (0)

Quote:
Originally Posted by adelphi_sky View Post
I could care less what a car sounds like as long as it drives like a bat outta hell. That's where the real excitement comes from.
Wrong...the noise the car makes is half the excitement. And too bad no 328i "drives like a bat outta hell." Looks like a lose-lose.
Appreciate 0
      09-25-2013, 11:13 AM   #35
Anodite10
Lieutenant Colonel
South Africa
43

 
Anodite10's Avatar
 
Drives: with a seat belt on
Join Date: Nov 2011
Location: South Africa


Posts: 1,894
iTrader: (0)

Quote:
Originally Posted by CurlyFatAngry View Post
The only reason I like auto start stop is in traffic lights no one hears that awful sound.
Ha! You've got me thinking..
Appreciate 0
      09-26-2013, 11:53 AM   #36
mike@x-ph.com
BimmerPost Supporting Vendor
United_States
158


 
mike@x-ph.com's Avatar
 
Drives: 2007 e92 335i
Join Date: Sep 2013
Location: Las Vegas


Posts: 14,434
iTrader: (4)

Normal
__________________
N54 JB4+VRSF DP 745$**N55 JB4+VRSF DP 736$**N20 JB4+ER DP 921$**N55 JB4+ER DP F Chassis 921$**VRSF N54 DP 289$**VRSF N55 DP 239.99$XPH Angel Eyes 79$**ER Huge Sale CP,DP and FMIC**Cobb N54/N55(Black Friday Special)**AA Sale FMIC,Exhausts**
Call 702-494-9435 or Email Mike@x-ph.com or PM me For INSANE BLACK FRIDAY PRICES
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
Forum Jump


All times are GMT -5. The time now is 10:28 PM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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