e90 550 rpm vibrating at idle

r0bert · 12-16-2014, 10:45 AM

In park or in drive when car gets to normal running temperature there is a vibration throughout the car. Nothing like misfiring because I have had that before and that is a lot more shaking.

Idles at ~550 rpms

Car is e90 N52 with 96k miles.

New air filter and cleaned mass air flow sensor.

New spark plugs and coils at 80k.

petelazro · 12-16-2014, 12:06 PM

i have the same thing on my 328xi. 550rpm on idel. i have new sparks, air filter and cleaned my MAF sensor as well. did a fuel injector cleaner(lucus) and it helped a bit. car pulls fairly strong but i still get the vibration.

im also interested in what other people have to say. been trying to figure this out for a year but no change. the last thing is injectors. hoping for my engine to throw a code so my warranty would pick up the tab.

petelazro · 12-16-2014, 12:07 PM

i have the same thing on my 328xi. 550rpm on idel. i have new sparks, air filter and cleaned my MAF sensor as well. did a fuel injector cleaner(lucus) and it helped a bit. car pulls fairly strong but i still get the vibration.

im also interested in what other people have to say. been trying to figure this out for a year but no change. the last thing is injectors. hoping for my engine to throw a code so my warranty would pick up the tab.

thecooltype · 12-16-2014, 12:14 PM

Changing the vanos solenoid at high mileage rids the car of hard idle and vibration. If this has never been done on your cars then that could be your culprit.

twright · 12-16-2014, 07:22 PM

Bad motor mounts made my 2006 325i vibrate at idle. New mounts fixed it right up.

markus037 · 12-16-2014, 07:43 PM

i just noticed this this morning. thinking about cleaning the solenoids to see if that changes anything.

petelazro · 12-17-2014, 07:00 AM

I cleaned my solenoid this fall and nothing changed. might be motor mounts.

Is this something that can be tested for by a mechanic to see if they are bad? or do you just changing them at a certain mileage?

also what is the approx cost for this from an indy mechanic?

dassub · 12-17-2014, 10:20 AM

Changing a bad coil made my idle perfect. Also, fuel injector cleaners.

thecooltype · 12-17-2014, 11:58 AM

Quote:

Originally Posted by petelazro

I cleaned my solenoid this fall and nothing changed. might be motor mounts.

Is this something that can be tested for by a mechanic to see if they are bad? or do you just changing them at a certain mileage?

also what is the approx cost for this from an indy mechanic?

I believe you test motor mounts by sitting in the car in Park while stepping on the gas a few times to see how much play there is in the engine. Maybe you can look at a friends and compare. If you car engine does have more play then more than likely it is the mounts.

r0bert · 12-23-2014, 09:07 AM

cleaned out both VANOS realy well and seems to minimize the vibration but still there. hard to to describe but I can watch RPM surge up and down just slightly. I can hear and feel the surge at same time.

can I clean the VANOS out better with a cleaner?

should I just get new ones?

Zack77 · 12-23-2014, 09:16 AM

Quote:

Originally Posted by r0bert

cleaned out both VANOS realy well and seems to minimize the vibration but still there. hard to to describe but I can watch RPM surge up and down just slightly. I can hear and feel the surge at same time.

can I clean the VANOS out better with a cleaner?

should I just get new ones?

From what I've read on it, might as well get new ones for best results. Cleaned mine and it sort of helped-but only for a few days. Bentley states replacement is no longer necessary after a software update that makes them automatically clean, but I haven't seen anything beyond that.

krahooligan · 12-23-2014, 09:34 AM

changing the coils helped rid me of this problem.

Eagle1oh7 · 12-23-2014, 06:23 PM

Isn't 550RPM a bit on the low side? I have an N51, but after warmup, the engine idles at 650RPM.

12-16-2014, 10:45 AM	#1
r0bert Private 14 Rep 96 Posts Drives: 2012 E92 335i, 2008 E90 328i Join Date: Sep 2013 Location: Louisiana iTrader: (0)	e90 550 rpm vibrating at idle In park or in drive when car gets to normal running temperature there is a vibration throughout the car. Nothing like misfiring because I have had that before and that is a lot more shaking. Idles at ~550 rpms Car is e90 N52 with 96k miles. New air filter and cleaned mass air flow sensor. New spark plugs and coils at 80k.
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12-16-2014, 12:06 PM	#2
petelazro Second Lieutenant 14 Rep 208 Posts Drives: 2008 328xi Join Date: Apr 2013 Location: Toronto iTrader: (0)	i have the same thing on my 328xi. 550rpm on idel. i have new sparks, air filter and cleaned my MAF sensor as well. did a fuel injector cleaner(lucus) and it helped a bit. car pulls fairly strong but i still get the vibration. im also interested in what other people have to say. been trying to figure this out for a year but no change. the last thing is injectors. hoping for my engine to throw a code so my warranty would pick up the tab. __________________ 2008 E90 328 X-drive -KW V1- Auto-Sport-Blacklines-LED interior lighting Summer: Style 195 F-225/40/18 R-255/35/18 on Bridgestone RE760 Sport Winter: Style 161 - Sottozero RFT 225/45/17 square
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12-16-2014, 12:07 PM	#3
petelazro Second Lieutenant 14 Rep 208 Posts Drives: 2008 328xi Join Date: Apr 2013 Location: Toronto iTrader: (0)	i have the same thing on my 328xi. 550rpm on idel. i have new sparks, air filter and cleaned my MAF sensor as well. did a fuel injector cleaner(lucus) and it helped a bit. car pulls fairly strong but i still get the vibration. im also interested in what other people have to say. been trying to figure this out for a year but no change. the last thing is injectors. hoping for my engine to throw a code so my warranty would pick up the tab. __________________ 2008 E90 328 X-drive -KW V1- Auto-Sport-Blacklines-LED interior lighting Summer: Style 195 F-225/40/18 R-255/35/18 on Bridgestone RE760 Sport Winter: Style 161 - Sottozero RFT 225/45/17 square
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12-16-2014, 12:14 PM	#4
thecooltype drive to survive 87 Rep 444 Posts Drives: 2017 540 XI Join Date: Mar 2014 Location: Queens, NY iTrader: (0)	Changing the vanos solenoid at high mileage rids the car of hard idle and vibration. If this has never been done on your cars then that could be your culprit.
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12-16-2014, 07:22 PM	#5
twright New Member 0 Rep 25 Posts Drives: 2006 325i Join Date: Mar 2013 Location: Indianapolis, Indiana USA iTrader: (0)	Bad motor mounts made my 2006 325i vibrate at idle. New mounts fixed it right up.
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12-16-2014, 07:43 PM	#6
markus037 Lieutenant 74 Rep 417 Posts Drives: Alpine White 2010 328Xi Join Date: Jan 2014 Location: Pottstown, PA iTrader: (0)	i just noticed this this morning. thinking about cleaning the solenoids to see if that changes anything. __________________ ASE Master Certified PA Safety and Emissions inspector
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12-17-2014, 07:00 AM	#7
petelazro Second Lieutenant 14 Rep 208 Posts Drives: 2008 328xi Join Date: Apr 2013 Location: Toronto iTrader: (0)	I cleaned my solenoid this fall and nothing changed. might be motor mounts. Is this something that can be tested for by a mechanic to see if they are bad? or do you just changing them at a certain mileage? also what is the approx cost for this from an indy mechanic? __________________ 2008 E90 328 X-drive -KW V1- Auto-Sport-Blacklines-LED interior lighting Summer: Style 195 F-225/40/18 R-255/35/18 on Bridgestone RE760 Sport Winter: Style 161 - Sottozero RFT 225/45/17 square
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12-17-2014, 10:20 AM	#8
dassub Captain 60 Rep 965 Posts Drives: '14 328xi sport line Join Date: May 2009 Location: Toronto iTrader: (1) Garage List 1981 Fiat 124 Spider [0.00] 2014 F30 BMW 328xi [0.00] 2006 E90 BMW 325i ( ... [0.00] 1988 Audi 90 Quattr ... [0.00]	Changing a bad coil made my idle perfect. Also, fuel injector cleaners.
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12-23-2014, 09:07 AM	#10
r0bert Private 14 Rep 96 Posts Drives: 2012 E92 335i, 2008 E90 328i Join Date: Sep 2013 Location: Louisiana iTrader: (0)	cleaned out both VANOS realy well and seems to minimize the vibration but still there. hard to to describe but I can watch RPM surge up and down just slightly. I can hear and feel the surge at same time. can I clean the VANOS out better with a cleaner? should I just get new ones?
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12-23-2014, 09:34 AM	#12
krahooligan Lieutenant 52 Rep 405 Posts Drives: 2008 328i e90 Join Date: Sep 2014 Location: WEST COAST iTrader: (0)	changing the coils helped rid me of this problem.
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12-23-2014, 06:23 PM	#13
Eagle1oh7 Lieutenant Colonel 287 Rep 1,710 Posts Drives: '11 328i Sedan Join Date: Oct 2012 Location: Chula Vista CA iTrader: (0)	Isn't 550RPM a bit on the low side? I have an N51, but after warmup, the engine idles at 650RPM. __________________ DONE: Seibon CF Hood, M3 Rep, MSport rear w/DD CF Diffuser, M3 Rep Skirts, Seibon CSL trunklid, Forgestar F14 18s w/Michelin PSS, Eisenmann catback, AA Headers, BPC Stage 2, Charcoal Delete+revMotor+AFE Drop In filter FUTURE MODS: LED headlights, CF rooftop, M3 Suspension Conversion, Dinan CAI Mod
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