E90Post
 


TireRack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > question, how do you know when the turbos are going bad?



Reply
 
Thread Tools Search this Thread
      08-09-2011, 10:43 PM   #1
lawwailok
Lieutenant Colonel
 
lawwailok's Avatar
 
Drives: E90 335i, E70 X5
Join Date: Aug 2009
Location: Sacramento, CA

Posts: 1,916
iTrader: (18)

Garage List
question, how do you know when the turbos are going bad?

have a question here for all the expert. how do you know when the turbos are going bad? i've seen videos of how the turbos whine. but also, will you see boost drop in that case? what other symptoms can we tell?

i've been having some problems, it's on and off, not always happens tho. if i am holding gear, when rpm rises, let's say 2500+, there's some sort of weird noise. i can only hear it when radio is off, window down. it is not exactly like those turbo whine video i've seen. but just some kind of "whine"... it's very fainted. i did datalog, all data looks perfect.

so i just want to see if there's any symptoms i can tell if the turbos are going bad....
__________________
-eric
E90 335i TiAg *STOCK* see my garage for mod list..
E70 X5 SGM *try to stay stock* :/
lawwailok is offline   United_States
0
Reply With Quote
      08-09-2011, 10:59 PM   #2
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 16,298
iTrader: (31)

Send a message via AIM to Jeff@TopGearSolutions
Turbo's make noises... dont find your problems let them find you
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      08-09-2011, 11:07 PM   #3
tibra1
Banned
 
Drives: 2011 ZCP M3 - 2007 335i crashd
Join Date: Apr 2009
Location: NYC

Posts: 6,777
iTrader: (4)

Tell tale sign when seals fail ,,turbo burns oil n really bad smoking..you would get that b4 noise
tibra1 is offline   No_Country
0
Reply With Quote
      08-09-2011, 11:15 PM   #4
lawwailok
Lieutenant Colonel
 
lawwailok's Avatar
 
Drives: E90 335i, E70 X5
Join Date: Aug 2009
Location: Sacramento, CA

Posts: 1,916
iTrader: (18)

Garage List
Quote:
Originally Posted by tibra1 View Post
Tell tale sign when seals fail ,,turbo burns oil n really bad smoking..you would get that b4 noise
i don't get any smoke at all
__________________
-eric
E90 335i TiAg *STOCK* see my garage for mod list..
E70 X5 SGM *try to stay stock* :/
lawwailok is offline   United_States
0
Reply With Quote
      08-09-2011, 11:17 PM   #5
lawwailok
Lieutenant Colonel
 
lawwailok's Avatar
 
Drives: E90 335i, E70 X5
Join Date: Aug 2009
Location: Sacramento, CA

Posts: 1,916
iTrader: (18)

Garage List
Quote:
Originally Posted by Jeff@topgearsolutions View Post
Turbo's make noises... dont find your problems let them find you
true, but sometimes when there's something unusual or sounds odd, it feels annoying and want to find the root to fix it
__________________
-eric
E90 335i TiAg *STOCK* see my garage for mod list..
E70 X5 SGM *try to stay stock* :/
lawwailok is offline   United_States
0
Reply With Quote
      08-10-2011, 08:10 AM   #6
///M3THOD
Major
 
///M3THOD's Avatar
 
Drives: F06 GranCoupe, CLS63
Join Date: Dec 2009
Location: ATL/Buckhead

Posts: 1,472
iTrader: (26)

i just replaced my turbos..

They were leaking oil from the seals and the drivers side exhaust line was dumping smoke. The turbos were spooling and holding pressure fine, but they were on their way out. I also had an unbelievable amount of wastegate chatter, even after the BMW 8mm actuator swap.

Another telltale sign is a whistling turbo.

Here's a youtube video of it.. it didn't happen very often, only about 3-4 times over a 3 month period. I noticed it while driving and pulled into some random neighborhood to shoot this video before it went away.

///M3THOD is offline   United_States
0
Reply With Quote
      08-10-2011, 12:55 PM   #7
lawwailok
Lieutenant Colonel
 
lawwailok's Avatar
 
Drives: E90 335i, E70 X5
Join Date: Aug 2009
Location: Sacramento, CA

Posts: 1,916
iTrader: (18)

Garage List
Quote:
Originally Posted by ///M3THOD View Post
i just replaced my turbos..

They were leaking oil from the seals and the drivers side exhaust line was dumping smoke. The turbos were spooling and holding pressure fine, but they were on their way out. I also had an unbelievable amount of wastegate chatter, even after the BMW 8mm actuator swap.

Another telltale sign is a whistling turbo.

Here's a youtube video of it.. it didn't happen very often, only about 3-4 times over a 3 month period. I noticed it while driving and pulled into some random neighborhood to shoot this video before it went away.
wow.... i have none of those symptoms... but just there's one sound which is annoying somewhat and cannot find out where it is from
__________________
-eric
E90 335i TiAg *STOCK* see my garage for mod list..
E70 X5 SGM *try to stay stock* :/
lawwailok is offline   United_States
0
Reply With Quote
      08-10-2011, 01:53 PM   #8
taylors335
Major
 
taylors335's Avatar
 
Drives: Space Grey 08 335i
Join Date: Jan 2010
Location: san diego

Posts: 1,180
iTrader: (1)

Garage List
2008 335i  [3.50]
waste gate rattle ?
taylors335 is offline   United_States
0
Reply With Quote
      08-10-2011, 02:28 PM   #9
noobster
Private First Class
 
Drives: 335i
Join Date: Jun 2011
Location: atl

Posts: 118
iTrader: (0)

Quote:
Originally Posted by lawwailok View Post
wow.... i have none of those symptoms... but just there's one sound which is annoying somewhat and cannot find out where it is from
are you sure its not the sound of awesome?


what does it sound like?
noobster is offline  
0
Reply With Quote
      08-10-2011, 03:19 PM   #10
///M3THOD
Major
 
///M3THOD's Avatar
 
Drives: F06 GranCoupe, CLS63
Join Date: Dec 2009
Location: ATL/Buckhead

Posts: 1,472
iTrader: (26)

Quote:
Originally Posted by noobster View Post
are you sure its not the sound of awesome?


what does it sound like?
///M3THOD is offline   United_States
0
Reply With Quote
      08-10-2011, 03:54 PM   #11
lawwailok
Lieutenant Colonel
 
lawwailok's Avatar
 
Drives: E90 335i, E70 X5
Join Date: Aug 2009
Location: Sacramento, CA

Posts: 1,916
iTrader: (18)

Garage List
Quote:
Originally Posted by noobster View Post
are you sure its not the sound of awesome?


what does it sound like?

it definitely doesn't sound like those "turbo siren", but more like some sort of accessory whine noise.. it is very fainted and not producing all the time.. it's kinda on and off thing... hard to describe.
__________________
-eric
E90 335i TiAg *STOCK* see my garage for mod list..
E70 X5 SGM *try to stay stock* :/
lawwailok is offline   United_States
0
Reply With Quote
      08-12-2011, 05:46 PM   #12
aw335can
Private
 
Drives: 2007-335i, 2009 AW M3 CPE
Join Date: Jul 2009
Location: Laguna Nigel

Posts: 60
iTrader: (0)

Dealer replaced mine last year after smoke issue started.
__________________
InJen DCI - Cobb AP - Macht Schnell - HKS Legamax - OE Performance Suspension
aw335can is offline   United_States
0
Reply With Quote
      05-10-2012, 08:42 PM   #13
Bme30
Captain
 
Bme30's Avatar
 
Drives: 335i coupe
Join Date: May 2010
Location: 'Merika'

Posts: 762
iTrader: (1)

Garage List
2007 335i  [0.00]
Quote:
Originally Posted by lawwailok View Post
it definitely doesn't sound like those "turbo siren", but more like some sort of accessory whine noise.. it is very fainted and not producing all the time.. it's kinda on and off thing... hard to describe.
Any changes?? Did you ever figure everything out?
Bme30 is offline  
0
Reply With Quote
      05-10-2012, 09:13 PM   #14
skim7x
Use it or Lose it
 
skim7x's Avatar
 
Drives: 335i e92
Join Date: Sep 2006
Location: Clifton, NJ

Posts: 2,461
iTrader: (4)

Garage List
2007 335i  [5.00]
Quote:
Originally Posted by Jeff@topgearsolutions View Post
Turbo's make noises... dont find your problems let them find you
Exactly what I was going to say. Don't worry about it. You'll know when they need to be changed.
__________________
'07 Space Gray 335i coupe w/ Sports Package | Comfort Access

Cobb S1+ | PTF e30 custom tune | AMS | CP-e | BMS OCC | Quaife
[Newark Photoshoot #1]
skim7x is offline   United_States
0
Reply With Quote
      05-11-2012, 01:44 AM   #15
gzim335
Lieutenant
 
gzim335's Avatar
 
Drives: 07 e90n54-08 zx10r-lci328ix
Join Date: Feb 2011
Location: staten island ny

Posts: 513
iTrader: (2)

Garage List
2007 e90 335i  [1.00]
Quote:
Originally Posted by aw335can View Post
Dealer replaced mine last year after smoke issue started.
did you leave ur bolt ons on the car when they changed ur tb
__________________
2007/1 e90 335i jet black

jb4 g5 iso/bb flash--afe s2 sealed/scoops--cpe dp's sec cat delete dimisa 4"--cpe ic--aa cp/bov--ww meth--fsb-koni yellow h&r sport/lightweight wheels
gzim335 is offline   Montenegro
0
Reply With Quote
      05-11-2012, 02:59 AM   #16
garfi
Private
 
garfi's Avatar
 
Drives: E93 335i
Join Date: Aug 2008
Location: Turkey

Posts: 89
iTrader: (1)

Quote:
Originally Posted by ///M3THOD View Post
i just replaced my turbos..

They were leaking oil from the seals and the drivers side exhaust line was dumping smoke. The turbos were spooling and holding pressure fine, but they were on their way out. I also had an unbelievable amount of wastegate chatter, even after the BMW 8mm actuator swap.

Another telltale sign is a whistling turbo.

Here's a youtube video of it.. it didn't happen very often, only about 3-4 times over a 3 month period. I noticed it while driving and pulled into some random neighborhood to shoot this video before it went away.


What can we do If we noticed same issue with this video ?
I have same smoke problem now.. with my rb turbos
__________________
FBO (with BMW Performance exhaust) E93 335i | RB Turbos | Procede Rev3 | Vishnu Pwm Meth
garfi is offline  
0
Reply With Quote
      05-11-2012, 05:13 AM   #17
woptang22
Captain
 
woptang22's Avatar
 
Drives: 2007 bmw 335i sedan
Join Date: Nov 2011
Location: philly

Posts: 895
iTrader: (1)

Im Not trying too highjack this thread but curious about turbos failing also. I have an 07 335i with 37,000. I have been running COBB tune for a bit now and recently starter using stage 2+FMIC. I dont believe I have any turbo issues, but Im guessing Id be looking for smoke as a sign of turbo failure? And I have a third party warranty. If at some point turbos did go bad, I could uninstall the COBB AP, but what about the downpipes? Could the stay on the car or would they also have to be removed. Again sorry, Im not trying to highjack this thread, just getting a bit of info. Thanks all..
__________________
COBB AP PRO TUNE, Turner Motorsports Catback exhaust, AFE DCI, HELIX FMIC, VRSF DPs, ETS charge pipe, Tial BOV, Aquamist HFS-3 meth kit, KW V1 Coilovers, 19 in ICONZ 960 wheels.
woptang22 is offline  
0
Reply With Quote
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 05:54 PM.




e90post
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