E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Carbon Build Up at 65k miles - Before/After Pics



Reply
 
Thread Tools Search this Thread
      11-30-2011, 05:45 PM   #1
Murph335
Major
Murph335's Avatar
United_States
21
Rep
1,132
Posts

 
Drives: '07 335 e90, '11 X5D
Join Date: Feb 2010
Location: Chandler, AZ

iTrader: (12)

Garage List
2006 Chevy TBSS  [0.00]
2010 BMW 335i  [0.00]
2007 BMW 335i  [0.00]
N54 Carbon Build Up at 65k miles - Before/After Pics

07 e90 335i under maint/warr till 9/2013 or 100k mi. Owned since 46k mi.
Best run a couple weeks back was 13.0 109mph. MPH was consistent all night. New Tire or DR coming soon.

I brought the car in for service due to the car telling me. Turned out to be some roadworthy service that doesnt apply to arizona. worthless visit.

While I was there I mentioned the exhaust flapper rattle, needed washer fluid, and rough idle.

They discovered
  • A leaky washer pump replaced under warr= $50 ded.
  • Would not replace exhaust system due to my modified exhaust (downpipes), but agreed to disable it (like a golf tee mod).
  • Extensive carbon build up in the intake valves = $850 - 15% coupon.

Car runs like a champ, and i noticed that boost comes on more smooth than before almost seamless. Interested to go back to the track for more mph now vs. before.

After doing some research on DI engines. Since air and fuel arent mixed in the intake manifold nothing passes by to clean the back side of the valves.
Attached Images
  
__________________
E90 - H&R Touring - M3 Front Arms - Work Genosis GS-1 19x9+30 x10+26 225f 265r stretch - AA FMIC - AR DP - Cobb E30 Map +160rwhp/+200rwtq
E93 - Style 95 - RB Turbo - AR DP - Evolution RW FMIC - PTF E50 +242rwhp/+234rwtq
Appreciate 0
      11-30-2011, 05:51 PM   #2
Syndicategt
Brigadier General
Syndicategt's Avatar
United_States
50
Rep
3,732
Posts

 
Drives: 335i
Join Date: Sep 2009
Location: Nor Cal

iTrader: (11)

Good work. What did they clean it with? My SA told me they (BMW) were getting walnut shell blasters. I'd pay for that! And FYI....this is a common problem with our (or any DI) car.
__________________
2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
Appreciate 0
      11-30-2011, 06:49 PM   #3
raceyBMW
king of the hills
raceyBMW's Avatar
United_States
29
Rep
2,832
Posts

 
Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO

iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
Most BMW dealers use walnut blasting to clean if they go the full removal of the intake manifold route.
Appreciate 0
      11-30-2011, 06:56 PM   #4
vase330
Colonel
vase330's Avatar
United_States
37
Rep
2,676
Posts

 
Drives: E92 335i ; 14 RangeRover SSC
Join Date: Jan 2007
Location: Arlington, Va

iTrader: (1)

Wow! Do they take the head off to do that? If they don't, where does all that crud go? Hopefully not into the cylinders.
__________________
E92 335 | Space Gray | Saddle Brown Dakota | Dark Burl Trim | ZPP | ZSP | AT | Idrive | 6FL | FBO | Dinan CAI | Quaife LSD | STG3 PROCede.
Appreciate 0
      11-30-2011, 06:58 PM   #5
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
244
Rep
18,328
Posts


 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

iTrader: (32)

Send a message via AIM to Jeff@TopGearSolutions
Wow $850!
Appreciate 0
      11-30-2011, 07:02 PM   #6
lpphreakx06
Professional Moose Racer
lpphreakx06's Avatar
Vietnam
101
Rep
7,225
Posts

 
Drives: SG 335i E92
Join Date: Jul 2008
Location: Bellevue, Wa

iTrader: (25)

Quote:
Originally Posted by Jeff@topgearsolutions View Post
Wow $850!
Don't forget about the 15% off, seems worth it since it looks like a lot of work.
__________________

BMW Dream Team PNW Chapter, member #1
|HP Autowerks | AR DESIGN | BMW PERFORMANCE | STOP TECH | Volk Racing| AMS | ARKYM
Appreciate 0
      11-30-2011, 07:16 PM   #7
ttbmer
Lieutenant Colonel
United_States
21
Rep
1,845
Posts

 
Drives: space gray on black 07 335i
Join Date: Jul 2010
Location: las Vegas nv

iTrader: (15)

Send a message via MSN to ttbmer Send a message via Skype™ to ttbmer
Too much! Good price 400 and up to 500 I think is ok. But anyways is the stealership so that's to be expected
__________________
PROCEDE, PWM Vishnu Kit, AR catless DP, BMS DCI, Helix IC, P3 gauge, 25% window tint, mattblack window trim, mattblack roof wrapped. Vorstainer CSL trunk, CF wrapped interior, 18'' Forgestar F14 Matt black, quaife LSD, M3 suspension bits, Mtech front bumper). http://www.youtube.com/watch?v=b8JIB8C8HDA
Appreciate 0
      11-30-2011, 09:52 PM   #8
hemi to e90
dat boost doe
hemi to e90's Avatar
Poland
17
Rep
1,552
Posts

 
Drives: 10 335i, 12 a8, 14 899, 10 zr1
Join Date: Aug 2005
Location: staten island

iTrader: (1)

Quote:
Originally Posted by ttbmer View Post
Too much! Good price 400 and up to 500 I think is ok. But anyways is the stealership so that's to be expected
have you been quoted by an independent shop at 400-500?
__________________
Appreciate 0
      11-30-2011, 10:33 PM   #9
ttbmer
Lieutenant Colonel
United_States
21
Rep
1,845
Posts

 
Drives: space gray on black 07 335i
Join Date: Jul 2010
Location: las Vegas nv

iTrader: (15)

Send a message via MSN to ttbmer Send a message via Skype™ to ttbmer
Quote:
Originally Posted by hemi to e90 View Post
Quote:
Originally Posted by ttbmer View Post
Too much! Good price 400 and up to 500 I think is ok. But anyways is the stealership so that's to be expected
have you been quoted by an independent shop at 400-500?
Yes 400 got it done 2 weeks ago
__________________
PROCEDE, PWM Vishnu Kit, AR catless DP, BMS DCI, Helix IC, P3 gauge, 25% window tint, mattblack window trim, mattblack roof wrapped. Vorstainer CSL trunk, CF wrapped interior, 18'' Forgestar F14 Matt black, quaife LSD, M3 suspension bits, Mtech front bumper). http://www.youtube.com/watch?v=b8JIB8C8HDA
Appreciate 0
      11-30-2011, 11:06 PM   #10
MilehighM3
Colonel
MilehighM3's Avatar
21
Rep
2,184
Posts

 
Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs

iTrader: (9)

Install can't get it that clean I bet...
Appreciate 0
      12-01-2011, 12:55 AM   #11
Boony
Private First Class
Boony's Avatar
United_States
1
Rep
101
Posts

 
Drives: 07' E90 335i
Join Date: Apr 2011
Location: New York, NY

iTrader: (1)

Garage List
2007 BMW 335i  [4.75]
This definitely sparks my interest, I bought a lease-return at 46k too and its at 52k now. The car seems smooth, but I think it could be smoother, this seems worth it, might get this done soon too.
How much smoother is it really, I wouldn't think it would make such a huge difference?
__________________
Appreciate 0
      12-01-2011, 01:05 AM   #12
OG Ryder
Private
1
Rep
84
Posts

 
Drives: e92 335i
Join Date: Oct 2011
Location: San Diego

iTrader: (0)

What are people doing to prevent this? Can you hook up to a vac port on IM and feed it some induction cleaner just like they (shops) do on other cars?
Appreciate 0
      12-01-2011, 01:37 AM   #13
Joshboody
Lieutenant Colonel
25
Rep
1,708
Posts

 
Drives: pickemuptruck
Join Date: Jul 2009
Location: Phoenix, AZ

iTrader: (7)

before pic really doesn't look that bad. What are your mods OP? Back to track would be a good test.
Appreciate 0
      12-01-2011, 08:28 AM   #14
bigdaddycane
I even mod my cereal
bigdaddycane's Avatar
United_States
33
Rep
2,599
Posts

 
Drives: 2007 335i Sedan
Join Date: Aug 2009
Location: Northern Va

iTrader: (34)

Garage List
2007 BMW 335  [0.00]
Matt at Cambertoe (NY) does it in the $500 range
__________________

COBB AP|CP-e|ETS|ER|Forge DVs|KW V1|M3 Sways|BBS CH|BMS|
Appreciate 0
      12-01-2011, 08:57 AM   #15
c4s335i
Second Lieutenant
5
Rep
266
Posts

 
Drives: 07 335i sedan
Join Date: Oct 2010
Location: Charlotte, NC

iTrader: (0)

Seriously? A 6ft vacuum line, a bottle of spray throttle body cleaner, and about 30 minutes of spray time while the car is running and you foot on the throttle... about $10 bucks. Keep mind that most of the build up can easily be removed by TB cleaner, but you can't just spray into the engine without it running. Otherwise it will flood the engine and the removed contaminants won't be burned off. Plus with the engine at part throttle, you'll effectively increase the force of the spray further helping with the cleaning process.

I guess I need to do a before and after shot for everyone. The annoying part is that typically I wouldn't need to remove the intake. In this case I would have to remove it twice just to show the effectiveness.
Appreciate 0
      12-01-2011, 09:32 AM   #16
Bash
First Lieutenant
Bash's Avatar
3
Rep
395
Posts

 
Drives: E92-335i
Join Date: Jan 2011
Location: Beirut

iTrader: (0)

Quote:
Originally Posted by c4s335i View Post
Seriously? A 6ft vacuum line, a bottle of spray throttle body cleaner, and about 30 minutes of spray time while the car is running and you foot on the throttle... about $10 bucks. Keep mind that most of the build up can easily be removed by TB cleaner, but you can't just spray into the engine without it running. Otherwise it will flood the engine and the removed contaminants won't be burned off. Plus with the engine at part throttle, you'll effectively increase the force of the spray further helping with the cleaning process.

I guess I need to do a before and after shot for everyone. The annoying part is that typically I wouldn't need to remove the intake. In this case I would have to remove it twice just to show the effectiveness.
subscribed, need to check how effective that method really is
__________________

COBB S2+ - Mr.5 CAI, Catless DP, Catless MP, AMS FMIC.
Appreciate 0
      12-01-2011, 09:40 AM   #17
MDORPHN
Colonel
41
Rep
2,545
Posts

 
Drives: AW 1M
Join Date: Oct 2010
Location: Wash, DC

iTrader: (0)

Quote:
Originally Posted by c4s335i View Post
Seriously? A 6ft vacuum line, a bottle of spray throttle body cleaner, and about 30 minutes of spray time while the car is running and you foot on the throttle... about $10 bucks. Keep mind that most of the build up can easily be removed by TB cleaner, but you can't just spray into the engine without it running. Otherwise it will flood the engine and the removed contaminants won't be burned off. Plus with the engine at part throttle, you'll effectively increase the force of the spray further helping with the cleaning process.

I guess I need to do a before and after shot for everyone. The annoying part is that typically I wouldn't need to remove the intake. In this case I would have to remove it twice just to show the effectiveness.
Good luck with that!

Guess you haven't been following the long saga of intake valve build-up --and efforts to address it -- on direct injection Porches, VWs, Audi and BMWs.

Neil
Appreciate 0
      12-01-2011, 09:47 AM   #18
Pseudo Nim
twinborific
Pseudo Nim's Avatar
55
Rep
4,738
Posts

 
Drives: fast, sometimes slow
Join Date: Nov 2008
Location: i am a citizen of the world

iTrader: (9)

What about Seafoam? I'm scared to try it because it says "use on fuel injected vehicles, boats, ATVs, pressure washers and your house to clean it" but the Mini community @ Northamericanmotorsports.com is quite happily injecting it into their Minis...... with good results, it would appear.
__________________
Appreciate 0
      12-01-2011, 09:55 AM   #19
secretsquirrel
Colonel
secretsquirrel's Avatar
25
Rep
2,099
Posts

 
Drives: 335i nFifty4LiFe
Join Date: Dec 2010
Location: land of the squirrel

iTrader: (2)

Quote:
Originally Posted by Pseudo Nim View Post
...but the Mini community @ Northamericanmotorsports.com is quite happily injecting it into their Minis...... with good results, it would appear.
Have you seen any before and after shots or are people just swearing by it with no proof?
Appreciate 0
      12-01-2011, 09:56 AM   #20
JoosyJoos
Major
JoosyJoos's Avatar
United_States
22
Rep
1,292
Posts

 
Drives: 2008 335i Coupe
Join Date: Apr 2007
Location: Johns Creek, GA

iTrader: (1)

Garage List
2008 BMW 335i  [0.00]
Send a message via AIM to JoosyJoos
Quote:
Originally Posted by Pseudo Nim View Post
What about Seafoam? I'm scared to try it because it says "use on fuel injected vehicles, boats, ATVs, pressure washers and your house to clean it" but the Mini community @ Northamericanmotorsports.com is quite happily injecting it into their Minis...... with good results, it would appear.
Seafoam isn't strong enough to remove the "caked" carbon build-up... nor do I think any liquid cleaner is. You pretty much just have to remove the intake manifold, set the valves to top dead center, dump in cleaner to dissolve the deposits and then take a strong wire brush to the area. It's time intensive but not overly difficult. Push the car while in gear to slowly move the valves into the correct alignment.
__________________

1998 M3 Vert
1995 M3 Track Car
2008 335i - Retired
Appreciate 0
      12-01-2011, 09:56 AM   #21
Pseudo Nim
twinborific
Pseudo Nim's Avatar
55
Rep
4,738
Posts

 
Drives: fast, sometimes slow
Join Date: Nov 2008
Location: i am a citizen of the world

iTrader: (9)

Quote:
Originally Posted by secretsquirrel View Post
Have you seen any before and after shots or are people just swearing by it with no proof?
I think there's been a decent amount of testing by a number of people which makes me trust what they say. Let me go dig up the threads though ... to be sure.
__________________
Appreciate 0
      12-01-2011, 10:00 AM   #22
Pseudo Nim
twinborific
Pseudo Nim's Avatar
55
Rep
4,738
Posts

 
Drives: fast, sometimes slow
Join Date: Nov 2008
Location: i am a citizen of the world

iTrader: (9)

Quote:
Originally Posted by JoosyJoos View Post
Seafoam isn't strong enough to remove the "caked" carbon build-up... nor do I think any liquid cleaner is. You pretty much just have to remove the intake manifold, set the valves to top dead center, dump in cleaner to dissolve the deposits and then take a strong wire brush to the area. It's time intensive but not overly difficult. Push the car while in gear to slowly move the valves into the correct alignment.
I see. Would it have been more logical, then, to do a yearly Seafoam so that it doesn't GET to the "caked" build-up?

Incidentally - do dealers ever clean it under warranty or is this not a warrantiable item?
__________________
Appreciate 0
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 07:58 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