New 335i

kata_tutu · 01-07-2008, 03:44 PM

Collected my new 335i on the weekend. I have found after 100 miles that only one exhaust is working. The one on the right (UK car) is working which can be seen (soot) and felt (hot air). The one on the left is soot-free and no hot air is felt. Has someone shoved a banana up one pipe? Even after revving, there is no change.

EDK99 · 01-07-2008, 03:46 PM

Their is a valve in there that controls the exhaust. The one on the right is open all the time and the one on the left opens as needed.

shinchjjang · 01-07-2008, 03:50 PM

When I start my car in the cold, about 35 degrees, I notice for the first 3minutes only right exhaust works. After about 3 minutes, the car makes a different sound, I see both exhaust working. (I can see white smoke coming out from both exhaust because it's cold)

tjnptel1 · 01-07-2008, 03:52 PM

your car is fine, not a problem.

johnc_22 · 01-07-2008, 03:55 PM

Search for "golf tee mod" if you want both sides always operational and more noise.

RokX · 01-07-2008, 03:57 PM

This has been discussed several times in the past. It is normal. If you want, there are a few ways to deactivate the valve so both sides are flowing all the time. Either with the "golf tee mod" or in the trunk on the driver's side, there is a small panel you can remove behind the tail light, revealing a sensor you can disconnect to keep the valve open at all times.

GAM3OVR85 · 01-07-2008, 04:00 PM

i just knew that

thekurgan · 01-07-2008, 04:29 PM

MODS: Can we put a sticky regarding the valve that controls the exhaust system, maybe with links to the golf tee mod(s)? Thanks.

BK · 01-07-2008, 04:30 PM

Quote:

Originally Posted by RokX

This has been discussed several times in the past.

Hell, we had a new thread on this started just a few days ago: http://www.e90post.com/forums/showthread.php?t=105206

Interestingly enough, the 330i has a similar valve in its right exhaust, so only the left side exhaust works until it is warmed up. The 325i did not have this exhaust valve, IIRC. Does the 328i?

akack79 · 01-07-2008, 04:38 PM

http://www.e90post.com/forums/showth...light=golf+tee

If you read the thread above, that will answer all your questions.
I just did the golf tee mod this weekend and it sounds louder, especially on a cold start. Great cheap mod!!!

01-07-2008, 03:44 PM	#1
kata_tutu New Member 7 Rep 21 Posts Drives: BMW 335i (E91) Join Date: Nov 2007 Location: London, UK iTrader: (0)	New 335i - Only one exhaust active Collected my new 335i on the weekend. I have found after 100 miles that only one exhaust is working. The one on the right (UK car) is working which can be seen (soot) and felt (hot air). The one on the left is soot-free and no hot air is felt. Has someone shoved a banana up one pipe? Even after revving, there is no change.
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01-07-2008, 03:46 PM	#2
EDK99 Captain 33 Rep 934 Posts Drives: 07 E85 M Join Date: Jul 2006 Location: FL iTrader: (0)	Their is a valve in there that controls the exhaust. The one on the right is open all the time and the one on the left opens as needed. __________________ 2007 e85 Imola Red \| Black Leather \| Carbon Leather Trim \| Premium \| Navigation \| Heated Seats
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01-07-2008, 03:50 PM	#3
shinchjjang Private 5 Rep 64 Posts Drives: Black 335xi coupe Join Date: Sep 2007 Location: Seattle iTrader: (0)	When I start my car in the cold, about 35 degrees, I notice for the first 3minutes only right exhaust works. After about 3 minutes, the car makes a different sound, I see both exhaust working. (I can see white smoke coming out from both exhaust because it's cold)
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01-07-2008, 03:52 PM	#4
tjnptel1 Cunning Linguist 147 Rep 2,219 Posts Drives: 335i Join Date: Apr 2007 Location: Norfolk, VA iTrader: (0) Garage List 2007 335i [0.00]	your car is fine, not a problem. __________________ Bottles are for babies, Real men get blown.
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01-07-2008, 03:55 PM	#5
johnc_22 First Lieutenant 4 Rep 337 Posts Drives: 2007 E90 335i Join Date: Jan 2007 Location: Atlanta iTrader: (0)	Search for "golf tee mod" if you want both sides always operational and more noise. __________________ E90 335i: TiAg, black leather, burl walnut, 6MT, Sport, Premium, Cold Weather, PDC, Sirius, Comfort Access, Nav ED: 3/30/2007 Redelivered! 5/15/2007.
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01-07-2008, 03:57 PM	#6
RokX '07 E92 335i SOLD 21 Rep 452 Posts Drives: '08 Jeep SRT8, SC'd '06 GTO Join Date: Nov 2006 Location: Denver CO iTrader: (0)	This has been discussed several times in the past. It is normal. If you want, there are a few ways to deactivate the valve so both sides are flowing all the time. Either with the "golf tee mod" or in the trunk on the driver's side, there is a small panel you can remove behind the tail light, revealing a sensor you can disconnect to keep the valve open at all times. __________________
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01-07-2008, 04:00 PM	#7
GAM3OVR85 Major General 313 Rep 8,050 Posts Drives: E92 M3 Join Date: Aug 2007 Location: Montreal, QC iTrader: (18) Garage List 2008 BMW M3 [0.00] 2010 Sea-Doo RXT-X 260 [9.00] 2007 E92 328i [10.00]	i just knew that
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01-07-2008, 04:29 PM	#8
thekurgan Bad Lieutenant 232 Rep 3,517 Posts Drives: E90M3 Join Date: Aug 2007 Location: Sacramento iTrader: (0) Garage List 2008 BMW M3 [0.00]	MODS: Can we put a sticky regarding the valve that controls the exhaust system, maybe with links to the golf tee mod(s)? Thanks. __________________ 02 E39M5 \| TiAg/Schwartz \| Tubi Rumore \| Ultimate Ti Pedals \| E60 SSK \| Jim Blanton 3.45 40/100% \| Coby Alcantara \| StrongStrut STB
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01-07-2008, 04:38 PM	#10
akack79 Brigadier General 142 Rep 3,161 Posts Drives: '18 F80 M3 ZCP Join Date: Sep 2007 Location: T E X A S iTrader: (18)	http://www.e90post.com/forums/showth...light=golf+tee If you read the thread above, that will answer all your questions. I just did the golf tee mod this weekend and it sounds louder, especially on a cold start. Great cheap mod!!!
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