Exhaust pipe soot

billeul · 07-20-2011, 06:38 PM

I own a 2009 E92 335i. Before the golf tee mod, the right (passenger) side exhaust pipe developed a soot build up much quicker than left side exhaust pipe, as would be expected. After the golf tee mod, the left (driver) side exhaust pipe develops a soot build up much quicker than the right side exhaust pipe. Any explanation?
Anyone else seeing the same thing?

John 070 · 07-20-2011, 06:56 PM

Never did the mod so my soot is on the right.....after a certain point, it doesn't come off any more with washing. I heard some people said use very fine steel wool, but it doesn't really bother me. I would love to get the rims really clean, but I figure the rotors are so rusted as well as the calipers, it's a losing battle...

edelossantos · 07-21-2011, 12:48 AM

Well, here is an interesting observation. Since I had the recall performed, pump replaced - I have LESS soot on the right tailpipe. The left tailpipe is the same before the recall (hardly any soot). Not sure how this is related to the recall performed, but I noticed it after I had my car washed - that the right side wasn't as dirty as it should of been. ????

07-20-2011, 06:38 PM	#1
billeul New Member 5 Rep 18 Posts Drives: 2009 335i Coupe Join Date: Apr 2008 Location: Sykesville, MD 21784 iTrader: (0)	Exhaust pipe soot I own a 2009 E92 335i. Before the golf tee mod, the right (passenger) side exhaust pipe developed a soot build up much quicker than left side exhaust pipe, as would be expected. After the golf tee mod, the left (driver) side exhaust pipe develops a soot build up much quicker than the right side exhaust pipe. Any explanation? Anyone else seeing the same thing?
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07-20-2011, 06:56 PM	#2
John 070 Lieutenant General 1705 Rep 14,829 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	Never did the mod so my soot is on the right.....after a certain point, it doesn't come off any more with washing. I heard some people said use very fine steel wool, but it doesn't really bother me. I would love to get the rims really clean, but I figure the rotors are so rusted as well as the calipers, it's a losing battle...
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07-21-2011, 12:48 AM	#3
edelossantos EDS328i 4 Rep 74 Posts Drives: 2011 Space Gray 328i Coupe Join Date: Aug 2010 Location: San Diego, CA iTrader: (0)	Soot Well, here is an interesting observation. Since I had the recall performed, pump replaced - I have LESS soot on the right tailpipe. The left tailpipe is the same before the recall (hardly any soot). Not sure how this is related to the recall performed, but I noticed it after I had my car washed - that the right side wasn't as dirty as it should of been. ????
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