BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read




 

Post Reply
 
Thread Tools Search this Thread
      07-17-2012, 08:43 PM   #1
Daniu9394
New Member
China
20
Rep
18
Posts

Drives: BMW E90 335i /BMW 1M Coupe
Join Date: May 2012
Location: China

iTrader: (0)

What's wrong with 1M's exhuast?

Dear 1M friends:

I’m experiencing a quite embarrassed thing. Please see the following pictures of my 1M.

1. Both inside exhaust pipes are blank new and white, while the outside pipes are normally black.
http://photo.163.com/daniu9394/#m=2&...pid=7760973522


2. Left side exhaust.
http://photo.163.com/daniu9394/#m=2&...pid=7760923625


3. Right side exhaust.
http://photo.163.com/daniu9394/#m=2&...pid=7760923618


Note: I DO NOT made the difference in color on purpose. All the pipes show the different colors normally.


4. 1M's exhaust testing at about 2000 rpm.
http://photo.163.com/daniu9394/#m=2&...pid=7760983642


5. Even at 2000rpm, the left inside exhaust pipe is only infalted a little bit. While the right inside pipe is still not inflated at all. That means both inside exhuast pipes are basically no air comimg out at all.
http://photo.163.com/daniu9394/#m=2&...pid=7760973796


I did the testing as follows: I take 2 freshness-maintaining bags and put on the inside pipes, and then use the rubber bandings tightened around the inside pipes. No need to test the side ones as we can see that the exhaust air coming out normally and the color is both black.
After I start the engine, at the beginning both bag are not getting full of air. This picture is taken at the engine at about 2000 rpm, at that moment, the left inside bag start to have some air in it, but it is not quite full, and the right inside pipe basically no air coming out, because the bag is still not inflated.


How about your 1M exhaust? Why is like that? Could you also post some pics of your exhaust.

Thanks a lot!

Daniel
Attached Images
   

Last edited by Daniu9394; 07-17-2012 at 08:53 PM..
Appreciate 0
      07-17-2012, 08:50 PM   #2
ayao
Thread killer
628
Rep
1,891
Posts

Drives: 1M
Join Date: Aug 2011
Location: CA

iTrader: (2)

Appreciate 0
      07-17-2012, 08:58 PM   #3
OrangeCrush
Lieutenant Colonel
OrangeCrush's Avatar
1236
Rep
1,963
Posts

Drives: VO 1M #513/740
Join Date: May 2012
Location: USA

iTrader: (0)

Lol....mine is not like that. It is a China thing. See other 2 threads.
Appreciate 0
      07-18-2012, 03:22 AM   #4
Zuzu
Major General
Zuzu's Avatar
Australia
2807
Rep
7,632
Posts

Drives: M2C HS 6MT
Join Date: Mar 2008
Location: Sydney Australia

iTrader: (0)

Here...http://www.1addicts.com/forums/showthread.php?t=711749
Appreciate 0
      07-19-2012, 08:38 AM   #5
yema1m1m
New Member
2
Rep
5
Posts

Drives: 1m
Join Date: Jul 2012
Location: haha

iTrader: (0)

严重支持哥们来维权
Appreciate 0
      07-19-2012, 09:29 AM   #6
NC
Private
United_States
2
Rep
90
Posts

Drives: BSM 1M
Join Date: Sep 2007
Location: NC

iTrader: (0)

Quote:
Originally Posted by yema1m1m View Post
严重支持哥们来维权
+1
Appreciate 0
      07-19-2012, 10:01 AM   #7
Dackelone
European Editor
Dackelone's Avatar
Germany
10505
Rep
22,992
Posts

Drives: N54 e82
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Originally Posted by Zuzu View Post
^+1

And this thread too... http://www.1addicts.com/forums/showt...1#post12321627



Yup, it seems to be a Chinese market thing. Seems that BMW AG put a different exhaust on Chinese market 1M's - and the inside pipes do not get much exhaust flow and hence stay clean! Btw... I noticed the same thing on the new F10 M5 when I sampled one recently.


You could order a non Chinese 1M exhaust or take your off and cut out the blockage.



I looked up the rear exhaust on RealOEM.com...

and low and behold... China DOES get a special different rear exhaust muffler! National China version...



China exhaust muffler #18107847100
EU/RoW spec muffler #18107845402

Name:  1M_rear_muffler.png
Views: 1033
Size:  33.8 KB

http://realoem.com/bmw/showparts.do?...32&hg=18&fg=20



The curious thing is how can the 1M muffler/can pass Swiss noise regs while not pass Chinese ones!?!?

.


Dack.
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 11:55 PM.




1addicts
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