do all 335i's idle like crap??

335i 8 u up · 06-22-2010, 10:13 PM

I don't get it! When my cars cold it idles nice n steady...once it's warmed up n oil temp is at 250 degrees it idles sooo much like crap! It bounces from 700rpm 600rpm 500rpm evens 400rpm! Also the car shakes a little n you can feel it in the steering wheel and seat...anyone have or had this issue before? It drives me nuts and at my last service visit they performed a scope? And said it's nomal! Thanks guys!

HYSPAN79 · 06-22-2010, 10:18 PM

That is NOT normal.

onefastman · 06-22-2010, 10:20 PM

Seafoam your car, this helped a lot with mine

dzenno · 06-22-2010, 10:21 PM

It's not normal BUT that's shat happens with majority of 335s

335i 8 u up · 06-22-2010, 10:25 PM

figured it's not normal. Any ideas what it could be related to? Fuel? Ignition? Thanks guys!

bimmerboy · 06-22-2010, 10:32 PM

all N54s misfire slightly during a cold start. Just watch some youtube vids of a 335i/135i starting up, and you will hear little hiccups right at the start

marcvtec · 06-22-2010, 10:33 PM

get the newest procede,
IMHO it really help me with the idle on my car,
especially after more mods.

335i 8 u up · 06-22-2010, 10:41 PM

it idles nice on a cold start...vs my m3 that like wanted to stall cold my car only gets the shakes and stumbles when it's hot idling makes no sense to me!

rbaldwin28 · 06-23-2010, 05:20 AM

Quote:

Originally Posted by 335i 8 u up

it idles nice on a cold start...vs my m3 that like wanted to stall cold my car only gets the shakes and stumbles when it's hot idling makes no sense to me!

When you start your car cold the DME is keeping the throttle plate open 2-3% to keep the car from idling like crap or stalling. Once it is warm oil flows easier and motor has less resistance so it stops keeping the plate slightly open. If your HPFP is any more than 3,000 miles on it(thats when mine started) you start to get a shiver followed by a bog and then a little rev once the dme tries to compensate. Unfortunatly it will only get worse until the pump fails or bmw finds a real fix. Good luck getting BMW to do anything about this. I have tried and failed.

AlpineG05 · 06-23-2010, 10:55 AM

My car has been doing it for months, dealer won't do anything about it since I have no codes.

335i 8 u up · 06-23-2010, 10:58 AM

Thanks guys.! Quik question...with the car acting like this would it be safe to get the JB3?

scottp999 · 06-23-2010, 11:21 AM

This information helped with my rough idle with a warm engine. It runs completely smooth now: http://www.e90post.com/forums/showthread.php?t=386376

FLA 335 · 06-23-2010, 11:39 AM

i have perfect idle... 650... yours is not normal...

jblackwell · 06-23-2010, 11:49 AM

Quote:

Originally Posted by 335i 8 u up

Thanks guys.! Quik question...with the car acting like this would it be safe to get the JB3?

Fix the problem before you add variables to the mix and further complicate things. If you've got a bad plug, injector, or fuel pump you might end up damaging it. Get it running smooth like it should, then mod.

dlbrooks18 · 06-23-2010, 01:22 PM

not normal

rbaldwin28 · 06-23-2010, 04:43 PM

Quote:

Originally Posted by 335i 8 u up

Thanks guys.! Quik question...with the car acting like this would it be safe to get the JB3?

If what you are describing is just a slight dip in rpm and then back up to 650-700 rpm and then be fine for a few minutes then repeat I would say its OK to tune. When my car does this I have to point it out to anyone in my car or they don't notice it. If it is obvious to others in your car you may have a bigger problem.

marconi118 · 06-23-2010, 04:47 PM

Quote:

Originally Posted by 335i 8 u up

I don't get it! When my cars cold it idles nice n steady...once it's warmed up n oil temp is at 250 degrees it idles sooo much like crap! It bounces from 700rpm 600rpm 500rpm evens 400rpm! Also the car shakes a little n you can feel it in the steering wheel and seat...anyone have or had this issue before? It drives me nuts and at my last service visit they performed a scope? And said it's nomal! Thanks guys!

I have exactly the same problem on my 07/07 E93 MSD80 6MT with updated software to 34.x

two firs years no problem, steady idle.
on beginning 2010 dealer replaced 6 injectors + 6 coils + 6 plugs because of misfiring at partial throttle...

After that the idle is exactly as your car. the inspector from BMW belgium stated that this is normal for N54 lean burn engine.
I state that it was fine when car was new! they could not explain, but insist it is normal: no action has to be taken

ss134 · 06-23-2010, 04:49 PM

Mine used to sound like a diesel when it was cold and make a ticking noise

scottp999 · 06-23-2010, 05:33 PM

Quote:

Originally Posted by marconi118

I have exactly the same problem on my 07/07 E93 MSD80 6MT with updated software to 34.x

two firs years no problem, steady idle.
on beginning 2010 dealer replaced 6 injectors + 6 coils + 6 plugs because of misfiring at partial throttle...

After that the idle is exactly as your car. the inspector from BMW belgium stated that this is normal for N54 lean burn engine.
I state that it was fine when car was new! they could not explain, but insist it is normal: no action has to be taken

Try resetting the adaptions as shown in the thread link I posted. Takes less than 5 minutes and fixed the rough idle for me.

JBiddy · 06-23-2010, 10:30 PM

Quote:

Originally Posted by 335i 8 u up

I don't get it! When my cars cold it idles nice n steady...once it's warmed up n oil temp is at 250 degrees it idles sooo much like crap! It bounces from 700rpm 600rpm 500rpm evens 400rpm! Also the car shakes a little n you can feel it in the steering wheel and seat...anyone have or had this issue before? It drives me nuts and at my last service visit they performed a scope? And said it's nomal! Thanks guys!

misfiring kiddo.... scan the car

Darkcyd_Turbo · 06-23-2010, 10:40 PM

Quote:

Originally Posted by Alpine 335i

My car has been doing it for months, dealer won't do anything about it since I have no codes.

THIS...

Quote:

Originally Posted by 335i 8 u up

Thanks guys.! Quik question...with the car acting like this would it be safe to get the JB3?

Yes because I know...

Car runs great at WOT, even with the JB3 on. It just idles like butthole!

335i 8 u up · 06-23-2010, 10:42 PM

can bmw test the injectors?

06-22-2010, 10:13 PM	#1
335i 8 u up Enlisted Member 1 Rep 40 Posts Drives: 07 335i 6MT Join Date: Jun 2010 Location: PA iTrader: (0)	do all 335i's idle like crap?? I don't get it! When my cars cold it idles nice n steady...once it's warmed up n oil temp is at 250 degrees it idles sooo much like crap! It bounces from 700rpm 600rpm 500rpm evens 400rpm! Also the car shakes a little n you can feel it in the steering wheel and seat...anyone have or had this issue before? It drives me nuts and at my last service visit they performed a scope? And said it's nomal! Thanks guys!
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06-22-2010, 10:18 PM	#2
HYSPAN79 They let anyone in here 0 Rep 5 Posts Drives: 08 335i Join Date: Jun 2010 Location: FL iTrader: (0)	That is NOT normal.
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06-22-2010, 10:20 PM	#3
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	Seafoam your car, this helped a lot with mine __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-22-2010, 10:21 PM	#4
dzenno Banned 273 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	It's not normal BUT that's shat happens with majority of 335s
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06-22-2010, 10:25 PM	#5
335i 8 u up Enlisted Member 1 Rep 40 Posts Drives: 07 335i 6MT Join Date: Jun 2010 Location: PA iTrader: (0)	figured it's not normal. Any ideas what it could be related to? Fuel? Ignition? Thanks guys!
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06-22-2010, 10:32 PM	#6
bimmerboy Captain 23 Rep 601 Posts Drives: 135i Join Date: Jan 2009 Location: Bay Area iTrader: (0)	all N54s misfire slightly during a cold start. Just watch some youtube vids of a 335i/135i starting up, and you will hear little hiccups right at the start __________________ *--2009 BSM 135i--* -Manual, Sport Package, BMW Assist
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06-22-2010, 10:33 PM	#7
marcvtec Banned 407 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	get the newest procede, IMHO it really help me with the idle on my car, especially after more mods.
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06-22-2010, 10:41 PM	#8
335i 8 u up Enlisted Member 1 Rep 40 Posts Drives: 07 335i 6MT Join Date: Jun 2010 Location: PA iTrader: (0)	it idles nice on a cold start...vs my m3 that like wanted to stall cold my car only gets the shakes and stumbles when it's hot idling makes no sense to me!
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06-23-2010, 10:55 AM	#10
AlpineG05 hi 129 Rep 1,140 Posts Drives: Alpine White G05 Join Date: Feb 2008 Location: Bakersfield, Cali iTrader: (1)	My car has been doing it for months, dealer won't do anything about it since I have no codes. __________________ 2022 M Sport G05 Jb4, CTS catless dp, M performance exhaust, bms intake, IND goodies, Maxton kit
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06-23-2010, 10:58 AM	#11
335i 8 u up Enlisted Member 1 Rep 40 Posts Drives: 07 335i 6MT Join Date: Jun 2010 Location: PA iTrader: (0)	Thanks guys.! Quik question...with the car acting like this would it be safe to get the JB3?
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06-23-2010, 11:21 AM	#12
scottp999 Brigadier General 133 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	This information helped with my rough idle with a warm engine. It runs completely smooth now: http://www.e90post.com/forums/showthread.php?t=386376
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06-23-2010, 11:39 AM	#13
FLA 335 Captain 24 Rep 746 Posts Drives: 2009 335i (SOLD) !!!!! Join Date: Sep 2009 Location: Miami Fl iTrader: (7)	i have perfect idle... 650... yours is not normal... __________________ 2009 BMW 335i Sedan / Auto / Paddles / Sport / BMW Assist / Heated seats / JB Matte Black Grill / Tischer First Aid Kit w\Triangle / Tischer Hood Pad / "Custom" rear fog switch <---- SOLD!!!!
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06-23-2010, 01:22 PM	#15
dlbrooks18 Brigadier General 161 Rep 3,736 Posts Drives: e90 335i Join Date: Nov 2008 Location: Los Angeles iTrader: (2)	not normal __________________ 2008 E90 335
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06-23-2010, 04:49 PM	#18
ss134 Brigadier General 230 Rep 3,899 Posts Drives: F80 M3 Join Date: Feb 2009 Location: Germany/UK iTrader: (1)	Mine used to sound like a diesel when it was cold and make a ticking noise __________________ 2014 AW F80 M3 DCT 2011 AW E90 M3 DCT - Sold 2010 JZB E90 M3 DCT - Sold 2009 6MT E90 LCI 335i M -Sport - Sold
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06-23-2010, 10:42 PM	#22
335i 8 u up Enlisted Member 1 Rep 40 Posts Drives: 07 335i 6MT Join Date: Jun 2010 Location: PA iTrader: (0)	can bmw test the injectors?
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