Exhaust farts - New 2009 2010 BMW Z4

Memphis1 · 06-27-2010, 03:14 PM

Guys, I took my car in for a faulty seat sensor and they kept it over the weekend. Well since I got it back my car sounds quieter. No farts, barks or anything. almost like. 335i. Do you think they fucked with my software?? On purpose or by accident?? Or do you think something else is wrong??

richard in NC · 06-27-2010, 03:38 PM

Quote:

Originally Posted by Memphis1

Guys, I took my car in for a faulty seat sensor and they kept it over the weekend. Well since I got it back my car sounds quieter. No farts, barks or anything. almost like. 335i. Do you think they fucked with my software?? On purpose or by accident?? Or do you think something else is wrong??

Do they show any SW updates? Have you tried Normal vs Sport? I don't get them in Normal mode unless pushing it a bit but they're more prevalent in Sport.

Memphis1 · 06-27-2010, 05:54 PM

i dont even get them in sport + anymore

i checked the receipts and nothing about SW

MDLFCS · 06-27-2010, 06:15 PM

Maybe because the car was in the shop for a while and you haven't driven it for that period of time. I am guessing that passing some time, the sensation of the exhaust sounds will return.

For example, I driven a noisier NAPA truck all day years ago. At the end of the day, I hopped into my '98 Eddie Bauer Ford Explorer and it was much quieter and it felt like driving a different car unlike before work. After some time passed, the noises and sounds of my truck returned back to normal.

Or your Z4 had broken-in further as things are smoother now than it used to be. Or a different brand of gasoline was used?

Just throwing some ideas out there.

Memphis1 · 06-27-2010, 06:50 PM

maybe, i'll have to beat it into submission

cdeslandes · 06-27-2010, 06:51 PM

You're being too easy on her. Show her who's the boss!

Mr. ///M3 RD · 06-27-2010, 07:45 PM

I think Memphis knows how to do that

You will see he get his sound back

mcbeee · 06-27-2010, 08:43 PM

If the seat sensor needed to be mapped into the software , they would have updated your software without charge if you were behind a revision (or two).

MDLFCS · 06-28-2010, 07:09 AM

I would like to know how the dealer made your car quieter, if nothing else. It is a luxury sports car after all

It is funny that you describe your exhaust as farting, but as I am looking back, yes, my car do fart a lot! It must be the fuel!

mcbeee · 06-28-2010, 11:19 AM

Actually I get the "farts" when I'm in Normal mode and shift fairly hard, they don't seem to be as prevalent in sport or sport+. It must be the slower shifts in Normal doing it, either that or the car recognizes an old fart behind the wheel when I'm in "Normal mode"

I get great gas mileage in Normal but sh*t, that's no fun....

mikeinaustin · 06-28-2010, 11:43 AM

i was told (this last week), but not sure i believe, that when they update the software on these z4's they update ALL the software for all the modules (ie, they no longer update individual modules). In other words, they are given one large update file from bmw these days. If true, then this could be the reason for the change you noticed. It could also explain why you go in to get something fixed and something totally unrelated breaks....

mcbeee · 06-28-2010, 01:04 PM

Quote:

Originally Posted by mikeinaustin

i was told (this last week), but not sure i believe, that when they update the software on these z4's they update ALL the software for all the modules (ie, they no longer update individual modules). In other words, they are given one large update file from bmw these days. If true, then this could be the reason for the change you noticed. It could also explain why you go in to get something fixed and something totally unrelated breaks....

When I used to take my Audi A6 in, unrelated things broke all the time, mostly due to idiots working on it. Forgetting to plug stuff back in properly etc....I have nothing bad to say about my BMW guys ..yet.

I also had the BMW softwre rev and a Dinan remap at the same time . My car growls a lot and runs great now...definitely not quiet..

zeez_Dubai · 06-28-2010, 02:56 PM

try in sport mode and let change gears at around 4500 rpm , if it doest "fart" then something isnt right :P

Memphis1 · 06-28-2010, 07:42 PM

yeah, i've revved it all weekend, but my car used to do it all the time, even the split second you took your foot of the break and unto the gas pedal. even in sport + when i downshift, it doesn't fart and bark like it used to, but now that you guys mention it, i think maybe i should reset my tranny, maybe that's the reason.

Oh Captain My Captain · 06-28-2010, 10:13 PM

Quote:

Originally Posted by Memphis1

yeah, i've revved it all weekend, but my car used to do it all the time, even the split second you took your foot of the break and unto the gas pedal. even in sport + when i downshift, it doesn't fart and bark like it used to, but now that you guys mention it, i think maybe i should reset my tranny, maybe that's the reason.

Add some beans to the fuel too.

Dr Stig 2 · 06-30-2010, 07:26 AM

Is the fart just the DCT blipping the throttle on down shifts?
The throttle is programmed to do that in the 35i, but (they tell me at BMW) not to do it in the 30i auto.

Just a though...

MDLFCS · 06-30-2010, 08:07 AM

I thought the farts occurs during acceleration and get separated during upshifting. But, you may be right, the blipping could be part of it.

MilitaryE89 · 07-05-2010, 11:15 AM

Quote:

Originally Posted by Dr Stig 2

Is the fart just the DCT blipping the throttle on down shifts?
The throttle is programmed to do that in the 35i, but (they tell me at BMW) not to do it in the 30i auto.

Just a though...

well, my 30i manual burps, belches, farts, and i think giggles too...i dont know what happened to yours but im pretty sure it was intended to be there at the start. i am wondering if any detrimental underlying issues could cause this lack of gastric orchastration? i mean shit...that the car's irritable bowel syndrom is at least 1/3 of its total charm. i would demand bmw to make my car fart once more!

juhap · 12-08-2011, 10:14 AM

Had my car in for a software update (to make the LPFP stop whining) and noticed that my car's farts now last about 3 times longer than before. She's always been farting, but now we're talking about farts that'll make nearby sailors blush.

Not sure if we're talking about the same gaseous behaviour however as my girl farts whenever I take my foot off the gas pedal (moderate RPMs, not accelerating or anything before that).

By the way, I'm not complaining or anything. I kind of like it.

Mr. ///M3 RD · 12-08-2011, 10:56 AM

Quote:

Originally Posted by juhap

Had my car in for a software update (to make the LPFP stop whining) and noticed that my car's farts now last about 3 times longer than before. She's always been farting, but now we're talking about farts that'll make nearby sailors blush.

Not sure if we're talking about the same gaseous behaviour however as my girl farts whenever I take my foot off the gas pedal (moderate RPMs, not accelerating or anything before that).

By the way, I'm not complaining or anything. I kind of like it.

What are you feeding her? Might it be the gas?

BTW what kind of smell is it?

Memphis1 · 12-08-2011, 01:10 PM

i think it was coincidence with my car that high humidity and high temperature kill the farts.... kinda like pepto for the car... but anything cooler than 80 and no humidity and she's farting up a storm... plus with the medical pinch on the valve that controls the butterfly flap and now she's extra loud! love it.

ChuckB · 12-08-2011, 03:25 PM

Quote:

Originally Posted by Dr Stig 2

Is the fart just the DCT blipping the throttle on down shifts?
The throttle is programmed to do that in the 35i, but (they tell me at BMW) not to do it in the 30i auto.

Just a though...

The 30i does burble nicely, but only in the sport mode, and the Eisenmann exhaust doesn't hurt either. But after the software refresh last year it took about a week for the farts to return.

06-27-2010, 03:14 PM	#1
Memphis1 Lieutenant Colonel Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT Posts: 1,843 iTrader: (0)	Exhaust farts Guys, I took my car in for a faulty seat sensor and they kept it over the weekend. Well since I got it back my car sounds quieter. No farts, barks or anything. almost like. 335i. Do you think they fucked with my software?? On purpose or by accident?? Or do you think something else is wrong?? __________________
	Tweet

06-27-2010, 05:54 PM	#3
Memphis1 Lieutenant Colonel Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT Posts: 1,843 iTrader: (0)	i dont even get them in sport + anymore i checked the receipts and nothing about SW __________________

06-27-2010, 06:15 PM	#4
MDLFCS Private First Class Drives: 2009 Zee Four 35i Join Date: Oct 2009 Location: Alaska Posts: 168 iTrader: (0)	Maybe because the car was in the shop for a while and you haven't driven it for that period of time. I am guessing that passing some time, the sensation of the exhaust sounds will return. For example, I driven a noisier NAPA truck all day years ago. At the end of the day, I hopped into my '98 Eddie Bauer Ford Explorer and it was much quieter and it felt like driving a different car unlike before work. After some time passed, the noises and sounds of my truck returned back to normal. Or your Z4 had broken-in further as things are smoother now than it used to be. Or a different brand of gasoline was used? Just throwing some ideas out there. Last edited by MDLFCS; 06-27-2010 at 06:20 PM.

06-27-2010, 06:50 PM	#5
Memphis1 Lieutenant Colonel Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT Posts: 1,843 iTrader: (0)	maybe, i'll have to beat it into submission __________________

06-27-2010, 06:51 PM	#6
cdeslandes Captain Drives: 2010 Z4 s35i Join Date: Apr 2010 Location: Connecticut Posts: 648 iTrader: (0) Garage List 2013 Volvo XC90 [0.00] 2010 BMW Z4 sDrive35i [5.00]	You're being too easy on her. Show her who's the boss! __________________ 2010 BMW Z4 s35i 2013 Volvo XC90

06-27-2010, 07:45 PM	#7
Mr. ///M3 RD Major General Drives: M3 Summer & C350 4MATIC Winter Join Date: May 2010 Location: GTA, Ontario - Canada Posts: 7,542 iTrader: (0) Garage List 2011 M3 Coupe e92 [3.00] 2011 Benz 350 4MATIC [1.00] 1969 Restored Merce ... [0.00] 1987 BMW 535is [0.50] Cars from the Past [1.50] The ///M3 Engine S65 [3.50]	I think Memphis knows how to do that You will see he get his sound back __________________ Cheers, Rolf-Dieter Life will take us to some interesting places, fortunately The ///M3 will too with a many of us know this very well ---> Click here for some good stuff I found

06-27-2010, 08:43 PM	#8
mcbeee Lieutenant Drives: '09 Z4 s35i & '03 Z4 3.0i Join Date: Nov 2009 Location: Calgary Posts: 446 iTrader: (0) Garage List 2003 Z4 3.0i [0.00] 2001 Z3 3.0i [0.00] 2009 Z4 s35i [0.00]	If the seat sensor needed to be mapped into the software , they would have updated your software without charge if you were behind a revision (or two). __________________ Member ZSCCA 2009 Z4 s35i with Dinan Stage II software, Sport and Exec packages, 19" 296 rims , a stubby and mud flaps '03 Z4 3.0i Sterling Grey (Hers) '01 Z3 3.0i Sapphire Black, M sport package (Mine)

06-28-2010, 07:09 AM	#9
MDLFCS Private First Class Drives: 2009 Zee Four 35i Join Date: Oct 2009 Location: Alaska Posts: 168 iTrader: (0)	I would like to know how the dealer made your car quieter, if nothing else. It is a luxury sports car after all It is funny that you describe your exhaust as farting, but as I am looking back, yes, my car do fart a lot! It must be the fuel!

06-28-2010, 11:19 AM	#10
mcbeee Lieutenant Drives: '09 Z4 s35i & '03 Z4 3.0i Join Date: Nov 2009 Location: Calgary Posts: 446 iTrader: (0) Garage List 2003 Z4 3.0i [0.00] 2001 Z3 3.0i [0.00] 2009 Z4 s35i [0.00]	Actually I get the "farts" when I'm in Normal mode and shift fairly hard, they don't seem to be as prevalent in sport or sport+. It must be the slower shifts in Normal doing it, either that or the car recognizes an old fart behind the wheel when I'm in "Normal mode" I get great gas mileage in Normal but sht, that's no fun.... __________________ Member ZSCCA* 2009 Z4 s35i with Dinan Stage II software, Sport and Exec packages, 19" 296 rims , a stubby and mud flaps '03 Z4 3.0i Sterling Grey (Hers) '01 Z3 3.0i Sapphire Black, M sport package (Mine)

06-28-2010, 11:43 AM	#11
mikeinaustin First Lieutenant Drives: 2010 z4 3.0 crimson red Join Date: Sep 2009 Location: austin, tx Posts: 310 iTrader: (0)	i was told (this last week), but not sure i believe, that when they update the software on these z4's they update ALL the software for all the modules (ie, they no longer update individual modules). In other words, they are given one large update file from bmw these days. If true, then this could be the reason for the change you noticed. It could also explain why you go in to get something fixed and something totally unrelated breaks....

06-28-2010, 02:56 PM	#13
zeez_Dubai Private Drives: Orion Silver Bmw Z4 35i Join Date: Dec 2009 Location: Dubai Posts: 86 iTrader: (0)	try in sport mode and let change gears at around 4500 rpm , if it doest "fart" then something isnt right :P

06-28-2010, 07:42 PM	#14
Memphis1 Lieutenant Colonel Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT Posts: 1,843 iTrader: (0)	yeah, i've revved it all weekend, but my car used to do it all the time, even the split second you took your foot of the break and unto the gas pedal. even in sport + when i downshift, it doesn't fart and bark like it used to, but now that you guys mention it, i think maybe i should reset my tranny, maybe that's the reason. __________________

06-30-2010, 07:26 AM	#16
Dr Stig 2 Criminally Insane Drives: Like a Demon! Join Date: Jun 2010 Location: Brisbane, Australia Posts: 1,458 iTrader: (0) Garage List 2011 BMW X3 30D M-S ... [5.00] 2010 BMW Z4 35is [5.00]	Is the fart just the DCT blipping the throttle on down shifts? The throttle is programmed to do that in the 35i, but (they tell me at BMW) not to do it in the 30i auto. Just a though... __________________ Dr Stig 2010 Z4 35is 2011 X3 30d M Sport Australia

06-30-2010, 08:07 AM	#17
MDLFCS Private First Class Drives: 2009 Zee Four 35i Join Date: Oct 2009 Location: Alaska Posts: 168 iTrader: (0)	I thought the farts occurs during acceleration and get separated during upshifting. But, you may be right, the blipping could be part of it.

12-08-2011, 10:14 AM	#19
juhap Lieutenant Drives: sDrive35i Join Date: Jun 2009 Location: Finland Posts: 522 iTrader: (0)	Had my car in for a software update (to make the LPFP stop whining) and noticed that my car's farts now last about 3 times longer than before. She's always been farting, but now we're talking about farts that'll make nearby sailors blush. Not sure if we're talking about the same gaseous behaviour however as my girl farts whenever I take my foot off the gas pedal (moderate RPMs, not accelerating or anything before that). By the way, I'm not complaining or anything. I kind of like it.

12-08-2011, 01:10 PM	#21
Memphis1 Lieutenant Colonel Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT Posts: 1,843 iTrader: (0)	i think it was coincidence with my car that high humidity and high temperature kill the farts.... kinda like pepto for the car... but anything cooler than 80 and no humidity and she's farting up a storm... plus with the medical pinch on the valve that controls the butterfly flap and now she's extra loud! love it. __________________

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