Simple question

Beesap · 12-27-2010, 12:19 PM

A little help please - just acquired a '09 E92 and noticed the right exhaust tip is showing carbon deposit (dark inside the exhaust tip), but the left is perfectly clean.

Should I be concerned (fuel pump just replaced, but not sure how that could cause the problem)?

Any help greatly appreciated.

secretsquirrel · 12-27-2010, 12:22 PM

Quote:

Originally Posted by Beesap

A little help please - just acquired a '09 E92 and noticed the right exhaust tip is showing carbon deposit (dark inside the exhaust tip), but the left is perfectly clean.

Should I be concerned (fuel pump just replaced, but not sure how that could cause the problem)?

Any help greatly appreciated.

Its 100% normal. All 335's do that unless they have the golf tee mod (do a search on that term if interested).

Penn999 · 12-27-2010, 12:37 PM

Quote:

Originally Posted by secretsquirrel

Its 100% normal. All 335's do that unless they have the golf tee mod (do a search on that term if interested).

They do use it, just a lot less than the other side. On WOT they are both used. The flap is use for noise dampening on start up and idle. You can use golf tee mod or upgrade the exhaust to get rid of this

Bimmer This · 12-27-2010, 12:40 PM

Quote:

Originally Posted by secretsquirrel

Its 100% normal. All 335's do that unless they have the golf tee mod (do a search on that term if interested).

+1

bigdaddycane · 12-27-2010, 12:47 PM

I see this on 535's all the time, but not the 335.....mine did not exhibit this before I did the golf tee mod.

N55 · 12-27-2010, 09:56 PM

had my 335 08' didn't even know about the golf tee mod until the day before I traded it in for my 11' 335 and did the golf tee mod the first day!. Nevertheless both tips are covered in carbon deposit evenly.

Forcefed3 · 12-27-2010, 10:07 PM

Quote:

Originally Posted by Beesap

A little help please - just acquired a '09 E92 and noticed the right exhaust tip is showing carbon deposit (dark inside the exhaust tip), but the left is perfectly clean.

Should I be concerned (fuel pump just replaced, but not sure how that could cause the problem)?

Any help greatly appreciated.

Nope, perfectly normal. There is a flap in the left exhaust that doest open up until 2000rpm. You can go in the trunk and unplug the thing that controls it. That will make it louder and always stay open.

12-27-2010, 12:19 PM	#1
Beesap Registered 0 Rep 1 Posts Drives: 2009 335i, Smoke Grey Join Date: Dec 2010 Location: Portland, OR iTrader: (0)	Simple question - simple answer? :help: A little help please - just acquired a '09 E92 and noticed the right exhaust tip is showing carbon deposit (dark inside the exhaust tip), but the left is perfectly clean. Should I be concerned (fuel pump just replaced, but not sure how that could cause the problem)? Any help greatly appreciated.
	Appreciate 0 Tweet Quote

12-27-2010, 12:47 PM	#5
bigdaddycane I even mod my cereal 247 Rep 3,441 Posts Drives: 11 ZCP DCT M3 14 328d 21 GT4 Join Date: Aug 2009 Location: Northern Va iTrader: (53) Garage List 2021 Porsche GT4 [0.00] 2014 BMW 328d Xdriv ... [0.00] 2011 BMW M3 [0.00]	I see this on 535's all the time, but not the 335.....mine did not exhibit this before I did the golf tee mod. __________________ 2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins 2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads 2021 718 Cayman GT4 - Fire extinguiser
	Appreciate 0 Quote

12-27-2010, 09:56 PM	#6
N55 ⒸⒺⓇⓉⓘⒻⒾⒺⒹ✬ⓃⒾⓃⒿⒶ 137 Rep 1,475 Posts Drives: 🚀 Join Date: Nov 2010 Location: Pittsburgh iTrader: (3) Garage List 2015 BMW M4 [0.00] 2012 BMW 335IS (SOLD) [6.84] 2011 BMW 335XI (SOLD) [4.66] 2008 BMW 335xi (SOLD) [10.00]	had my 335 08' didn't even know about the golf tee mod until the day before I traded it in for my 11' 335 and did the golf tee mod the first day!. Nevertheless both tips are covered in carbon deposit evenly.
	Appreciate 0 Quote