335i...fluctuating RPM...anyone else's car doing this?

wj4 · 04-29-2007, 10:20 PM

This is the 3rd time it has happened to me. It seems to happen once per week regardless of the mileage I put on. I know it's weird.

What happens is at a full stop, the RPM will raise from the normal 600 to around 700, when this happens, the engine vibrate a bit more as well, you can feel it from the pedals. The car drives fine other than this. The rev will stay at 700 for the entire drive until you turn off the engine. Then when it is turned on again, the rep would be normal. Here is a picture of the rev at 700 I took at a stop light with my cell.

Basic info...car is a 1/07 built, changed oil at 1200 miles.

Walked U · 04-29-2007, 10:26 PM

Have procede or TT?

itsbrokeagain · 04-29-2007, 10:46 PM

get it updated with the latest Progman version. Cured mine...I was having a long crank issue as well.

I dont mind about the 100rpm surge. That part didnt bother me, as did the vibration. Just the cranking part.

BHairsto · 04-29-2007, 11:07 PM

It happens to me too, and has me wondering about my fuel pump. December build--5500 miles.

ulises 335i · 04-29-2007, 11:17 PM

is your ac on?

i noticed that the rpm goes up 1 line when ac is on.

533ogetnom · 04-29-2007, 11:18 PM

that happened to me once, i assumed it was bad gas and the ECU was raising the idle to stop from stalling, i noticed because i felt the engine chatter a bit (like it was going to stall, but very lightly) and looked down

are you saying yours vibrates strangly the whole time?

533ogetnom · 04-29-2007, 11:18 PM

Quote:

Originally Posted by ulises 335i

is your ac on?

i noticed that the rpm goes up 1 line when ac is on.

theres that too, the AC compressor will kick on and off periodically

schneid4323 · 04-29-2007, 11:22 PM

Clutch?

wj4 · 04-29-2007, 11:23 PM

Quote:

Originally Posted by itsbrokeagain

get it updated with the latest Progman version. Cured mine...I was having a long crank issue as well.

I dont mind about the 100rpm surge. That part didnt bother me, as did the vibration. Just the cranking part.

Do I just go to the dealership and ask about the Progman? How do I know what version Progman I have currently? I know it is not the latest because I don't have the same screen set up.

And my a/c was not on, I do realize that the idle is a bit more when the a/c is on, but in this case it wasn't.

wj4 · 04-29-2007, 11:35 PM

Quote:

Originally Posted by Walked U

Have procede or TT?

No, nothing done to the car performance-wise.

SfValley335i · 04-29-2007, 11:50 PM

same thing happened me... it only happens randomly with my car. It also has a long start up... cranks a few times before turning on. I already put a order for a fuel pump... SA said it should be here first or 2nd week of may... we'll see what happens. I just want the sucker replaced before I have too much fun with my xede and get lazy with removing it.

I also have a 01/07 build but automatic

ren · 04-30-2007, 12:00 AM

Can it be the radiator fan? I don't know if it would increase the RPM, but it may cause some vibration at the pedals.

wj4 · 04-30-2007, 12:14 AM

Quote:

Originally Posted by SfValley335i

same thing happened me... it only happens randomly with my car. It also has a long start up... cranks a few times before turning on. I already put a order for a fuel pump... SA said it should be here first or 2nd week of may... we'll see what happens. I just want the sucker replaced before I have too much fun with my xede and get lazy with removing it.

I also have a 01/07 build but automatic

Funny thing is that I thought I had a long crank as well. I read here that some people were having 5 second cranks before starting. I timed myself while starting, and it's been 2 seconds at longest, lol.

SfValley335i · 04-30-2007, 12:28 AM

Quote:

Originally Posted by wj4

Funny thing is that I thought I had a long crank as well. I read here that some people were having 5 second cranks before starting. I timed myself while starting, and it's been 2 seconds at longest, lol.

yes i saw a video of a long crank and that shit was really bad. Mines not as bad but still isn't normal like it was when the car was brand new. Either way I complained alot and am getting my new fuel pump.... soon to be worry free

E90ice · 04-30-2007, 01:14 AM

Fluctuating idle rmps are normal with BMW engines. Don't worry about it.

tek818 · 04-30-2007, 01:16 AM

my car totally does that too. Worried me a little, but I've read about it happening to a few people.

AW335TT · 04-30-2007, 01:27 AM

My car does it too..It goes up and drops goes up and drops. Mine is a March build with 1100 miles, completely stock. Its starting to bother me, at first i didnt mind how its annoying me.

biglew · 04-30-2007, 01:27 AM

Quote:

Originally Posted by wj4

Do I just go to the dealership and ask about the Progman? How do I know what version Progman I have currently? I know it is not the latest because I don't have the same screen set up.

And my a/c was not on, I do realize that the idle is a bit more when the a/c is on, but in this case it wasn't.

Your technicain working on your car will know what software integration level is after you bring the car in to your dealer and have them take a look at it.

e.n335 · 04-30-2007, 01:32 AM

Quote:

Originally Posted by E90ice

Fluctuating idle rmps are normal with BMW engines. Don't worry about it.

+1

Cheers
Eugen

bnj · 04-30-2007, 02:44 AM

Happens to me always. At idle the revs are at 600 less than one minute, then they increase to around 700 just like yours and stay there.

I have got the car checked two times. They say no error codes are shown, so there is nothing they can do and there is nothing wrong about it. It would show the errors during the full analysis, if there were any.

Later on I installed Procede, but this naturally did not change anything, because it does not tweak idle figures as all as far as I understand.

CleanAudi · 04-30-2007, 03:04 AM

Wow same problem here.

I had the long crank issue when I first picked up the car, but haven't experienced it since.

The idle problem I still have all the time even with the A/C on.. It will generally vary from 600rpm (normal) all the way up to 800. Coming to a stop it will slowly drop, sometimes just sit at 800 and wont change. weird

wj4 · 04-30-2007, 03:34 AM

I took the car out for a spin an hour or so ago and it is back to normal like usual. OT but man, the 335i pulls so much harder in colder, denser weather than the hot weather. Another reason why I drive like a grandma in day time, lol.

Now I really want to get the Progman update, I will see what the dealership says. There is definitely some glitches that I think it will help out, navi and iDrive related.

04-29-2007, 10:20 PM	#1
wj4 Major General 335 Rep 7,719 Posts Drives: E90 manual 335i Join Date: Nov 2006 Location: Burbank, CA iTrader: (8)	335i...fluctuating RPM...anyone else's car doing this? This is the 3rd time it has happened to me. It seems to happen once per week regardless of the mileage I put on. I know it's weird. What happens is at a full stop, the RPM will raise from the normal 600 to around 700, when this happens, the engine vibrate a bit more as well, you can feel it from the pedals. The car drives fine other than this. The rev will stay at 700 for the entire drive until you turn off the engine. Then when it is turned on again, the rep would be normal. Here is a picture of the rev at 700 I took at a stop light with my cell. Basic info...car is a 1/07 built, changed oil at 1200 miles.
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04-29-2007, 10:26 PM	#2
Walked U Brigadier General 179 Rep 3,125 Posts Drives: Too many to list Join Date: Nov 2006 Location: USA iTrader: (5)	Have procede or TT? __________________ Previous - E90 335i, E82 135i, E89 Z4 3.5SI, Range Rover S/C, Ultra White RCF, Maserati Granturismo Current Lexus: SMG LC500 performance package Porsche:1973 911E Ferrari 575 SA, 458 Italia
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04-29-2007, 10:46 PM	#3
itsbrokeagain 310 Rep 15,745 Posts Drives: 1999 528iT, E53 X5, E46 325xi Join Date: Mar 2007 Location: Strong Island iTrader: (7)	get it updated with the latest Progman version. Cured mine...I was having a long crank issue as well. I dont mind about the 100rpm surge. That part didnt bother me, as did the vibration. Just the cranking part.
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04-29-2007, 11:07 PM	#4
BHairsto Lieutenant 136 Rep 497 Posts Drives: 2016 BMW M2 Join Date: Sep 2006 Location: Woodbridge, VA iTrader: (2) Garage List 2016 BMW X5 35d [0.00]	It happens to me too, and has me wondering about my fuel pump. December build--5500 miles.
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04-29-2007, 11:17 PM	#5
ulises 335i these cars waste alot of fucking gas 51 Rep 992 Posts Drives: 335i montego blue Join Date: Jan 2007 Location: el monte, c.a. iTrader: (3)	is your ac on? i noticed that the rpm goes up 1 line when ac is on.
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04-29-2007, 11:18 PM	#6
533ogetnom Banned 95 Rep 1,760 Posts Drives: 335coupe Join Date: Apr 2007 Location: Florida iTrader: (1)	that happened to me once, i assumed it was bad gas and the ECU was raising the idle to stop from stalling, i noticed because i felt the engine chatter a bit (like it was going to stall, but very lightly) and looked down are you saying yours vibrates strangly the whole time?
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04-29-2007, 11:22 PM	#8
schneid4323 Banned 330 Rep 1,134 Posts Drives: 335i, M6 Join Date: Dec 2006 Location: Dallas TX iTrader: (0)	Clutch?
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04-29-2007, 11:50 PM	#11
SfValley335i Colonel 164 Rep 2,409 Posts Drives: Current:135i Sold:335i sedan Join Date: Mar 2007 Location: City of Angels iTrader: (8)	same thing happened me... it only happens randomly with my car. It also has a long start up... cranks a few times before turning on. I already put a order for a fuel pump... SA said it should be here first or 2nd week of may... we'll see what happens. I just want the sucker replaced before I have too much fun with my xede and get lazy with removing it. I also have a 01/07 build but automatic
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04-30-2007, 12:00 AM	#12
ren Captain 62 Rep 839 Posts Drives: 2024 X7 M60i Join Date: Jan 2007 Location: U.S. iTrader: (8)	Can it be the radiator fan? I don't know if it would increase the RPM, but it may cause some vibration at the pedals.
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04-30-2007, 01:14 AM	#15
E90ice Banned 205 Rep 2,002 Posts Drives: 2008 335xi Coupe Join Date: May 2006 Location: WA iTrader: (0)	Fluctuating idle rmps are normal with BMW engines. Don't worry about it. __________________
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04-30-2007, 01:16 AM	#16
tek818 Lieutenant Colonel 136 Rep 1,954 Posts Drives: 2020 X3M Competition Join Date: Mar 2007 Location: Los Angeles, CA iTrader: (2) Garage List 2018 M3 ZCP [9.50]	my car totally does that too. Worried me a little, but I've read about it happening to a few people.
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04-30-2007, 01:27 AM	#17
AW335TT Major 616 Rep 1,420 Posts Drives: a car Join Date: Feb 2007 Location: North Hollywood, CA iTrader: (0)	My car does it too..It goes up and drops goes up and drops. Mine is a March build with 1100 miles, completely stock. Its starting to bother me, at first i didnt mind how its annoying me. __________________
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04-30-2007, 02:44 AM	#20
bnj Banned 14 Rep 1,137 Posts Drives: e92 335i Join Date: Nov 2006 Location: Helsinki iTrader: (0)	Happens to me always. At idle the revs are at 600 less than one minute, then they increase to around 700 just like yours and stay there. I have got the car checked two times. They say no error codes are shown, so there is nothing they can do and there is nothing wrong about it. It would show the errors during the full analysis, if there were any. Later on I installed Procede, but this naturally did not change anything, because it does not tweak idle figures as all as far as I understand.
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04-30-2007, 03:04 AM	#21
CleanAudi Second Lieutenant 34 Rep 262 Posts Drives: BMW F82 M4 Join Date: Jan 2007 Location: USA iTrader: (0)	Wow same problem here. I had the long crank issue when I first picked up the car, but haven't experienced it since. The idle problem I still have all the time even with the A/C on.. It will generally vary from 600rpm (normal) all the way up to 800. Coming to a stop it will slowly drop, sometimes just sit at 800 and wont change. weird
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04-30-2007, 03:34 AM	#22
wj4 Major General 335 Rep 7,719 Posts Drives: E90 manual 335i Join Date: Nov 2006 Location: Burbank, CA iTrader: (8)	I took the car out for a spin an hour or so ago and it is back to normal like usual. OT but man, the 335i pulls so much harder in colder, denser weather than the hot weather. Another reason why I drive like a grandma in day time, lol. Now I really want to get the Progman update, I will see what the dealership says. There is definitely some glitches that I think it will help out, navi and iDrive related.
	Appreciate 0 Quote