Loud Buzzing sound on idle....?

lpphreakx06 · 12-05-2009, 04:22 PM

Comes on during idle after warming the car up. Even after the oil passes the mid point (~20 mins of driving). I hear it mostly on the left side of the engine. Brought it to the dealership and replicated the sound.
They saw that the vacuum hoses coming off the turbo were not stock so if they were to diagnose the noise and it was not warranty related then they would have to charge me.
I asked for my car back since I need it for today.
What do you think the buzzing noise is?

Also an update on the turbo whistles, the shop foremen says that it's the transmission making noise and if were were to get a brand new 335i it would have the same noise. Maybe the whistle isnt from the turbos?

burberry · 12-05-2009, 04:29 PM

i always thought any whistles were from the BOV

lpphreakx06 · 12-05-2009, 05:40 PM

The subtle wooosh is from the dv's, I've never heard it come from that side of the engine. It was more towards the bottom

lpphreakx06 · 12-05-2009, 07:08 PM

Picked up my car, new spark plugs can make a big ass difference

lpphreakx06 · 12-07-2009, 03:03 AM

Someone has to have had this sound.

migue90 · 12-07-2009, 08:55 AM

the buzzing could be one of the wastegates rattling rapidly -wastegate rattle is a fairly common problem but the might blame it on the changed hoses........did you change the vacuum hoses coming off the turbo?

12-05-2009, 04:22 PM	#1
lpphreakx06 Professional Moose Racer 325 Rep 7,509 Posts Drives: SG 335i E92 RIP + 2015 SS M3 Join Date: Jul 2008 Location: Bellevue, Wa iTrader: (25)	Loud Buzzing sound on idle....? Comes on during idle after warming the car up. Even after the oil passes the mid point (~20 mins of driving). I hear it mostly on the left side of the engine. Brought it to the dealership and replicated the sound. They saw that the vacuum hoses coming off the turbo were not stock so if they were to diagnose the noise and it was not warranty related then they would have to charge me. I asked for my car back since I need it for today. What do you think the buzzing noise is? Also an update on the turbo whistles, the shop foremen says that it's the transmission making noise and if were were to get a brand new 335i it would have the same noise. Maybe the whistle isnt from the turbos? __________________ Visit my blog anytime: http://www.sfpayments.com BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM
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12-05-2009, 04:29 PM	#2
burberry Caffeine Addict 46 Rep 1,987 Posts Drives: E93 M3 Join Date: Nov 2009 Location: Brooklyn, NY iTrader: (3)	i always thought any whistles were from the BOV __________________ '07 E90 335xi ► '09 E90 335i ► '08 E93 M3 ► ???
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12-05-2009, 05:40 PM	#3
lpphreakx06 Professional Moose Racer 325 Rep 7,509 Posts Drives: SG 335i E92 RIP + 2015 SS M3 Join Date: Jul 2008 Location: Bellevue, Wa iTrader: (25)	The subtle wooosh is from the dv's, I've never heard it come from that side of the engine. It was more towards the bottom __________________ Visit my blog anytime: http://www.sfpayments.com BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM
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12-05-2009, 07:08 PM	#4
lpphreakx06 Professional Moose Racer 325 Rep 7,509 Posts Drives: SG 335i E92 RIP + 2015 SS M3 Join Date: Jul 2008 Location: Bellevue, Wa iTrader: (25)	Picked up my car, new spark plugs can make a big ass difference __________________ Visit my blog anytime: http://www.sfpayments.com BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM
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12-07-2009, 03:03 AM	#5
lpphreakx06 Professional Moose Racer 325 Rep 7,509 Posts Drives: SG 335i E92 RIP + 2015 SS M3 Join Date: Jul 2008 Location: Bellevue, Wa iTrader: (25)	Someone has to have had this sound. __________________ Visit my blog anytime: http://www.sfpayments.com BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM
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12-07-2009, 08:55 AM	#6
migue90 Second Lieutenant 7 Rep 200 Posts Drives: 07 335i Join Date: Aug 2009 Location: N E W Jerz iTrader: (2)	the buzzing could be one of the wastegates rattling rapidly -wastegate rattle is a fairly common problem but the might blame it on the changed hoses........did you change the vacuum hoses coming off the turbo? __________________ stockeroni and cheese?
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