wastegate rattle post 1/08 build

eyemdbmw · 06-02-2009, 09:35 AM

anyone have significant rattle with post 1/08 production? i installed catless dp's and have rattle while accelerating. i assume this is wategate rattle made more obvious by lack of dp's...unless i installed the AR dp's incorrctly but fitment seems good. anyone else have this problem with a post 1/08 build?

stressdoc · 06-02-2009, 09:42 AM

Rattle while accelerating? That is not likely to be the wastegate actuators, and if it is, then I suggest you get them looked at and adjusted/replaced.

eyemdbmw · 06-02-2009, 09:52 AM

yup rattle while accelerating. could it be the dp install causing the rattle?

eyemdbmw · 06-02-2009, 10:30 AM

should it not be rattling while accelerating?

scheherazade · 06-02-2009, 11:05 AM

Quote:

Originally Posted by eyemdbmw

should it not be rattling while accelerating?

It rattles both accel and decel.

To hear it accel:
Drive 35 mph.
Put it in 6th.
Apply throttle moderately, about 75%.

To hear it decel:
Drive 35-40 mph
Put it in 3rd.
start to let off the gas so the car begins to engine-brake.

-scheherazade

eyemdbmw · 06-02-2009, 11:16 AM

k thanks. i've noticed the rattle at low rpms during acceleration. i'll try the deceleration test. just concerened since my car is a 2/08 build

eyemdbmw · 06-04-2009, 10:30 AM

well guys i'm not convinced i have wastegate rattle. i only hear the metalic rattle when accelerating. i tried the decel. test mentioned above and could not hear it. also it doesn't go away after the car is warmed up. i will try to post some audio. any thoughts? the dp's aren't touching but they are close. the shorter dp is touching that heat shield thingy. i may have to have someone like AMS look at it. thanks for any advice.
ara

7woodman7 · 06-04-2009, 12:29 PM

this is the wastegate rattling production date 02/2007

http://www.youtube.com/watch?v=zuYY7rVcs-s

eyemdbmw · 06-04-2009, 03:14 PM

Quote:

Originally Posted by 7woodman7

this is the wastegate rattling production date 02/2007

http://www.youtube.com/watch?v=zuYY7rVcs-s

thank you. mine sounds a little more metallic than that and ONLY during acceleration. no noise at all during freeway driving without acceleration. any thoughts would be appreciated.
ara

eyemdbmw · 06-05-2009, 01:40 PM

one more thing guys. i only hear the metallic rattle when i step on it and the car is in motion and in gear. if the car is stopped, i can rev it up and no sound. if it is in motion but not in gear and i rev it up, no sound. if it is in motion and in gear and i don't step on it, no sound.
any ideas?
ara

Ghost170 · 06-05-2009, 02:57 PM

It may seem that the rattle is cause by the after market DPs. Check the DP to see if it is rubbing anywhere, or needs to be adjusted. Was it making a noise before the DP?

eyemdbmw · 06-08-2009, 10:06 AM

Quote:

Originally Posted by Ghost170

It may seem that the rattle is cause by the after market DPs. Check the DP to see if it is rubbing anywhere, or needs to be adjusted. Was it making a noise before the DP?

i am worried it might be an install problem but why only while accelerating and only when in gear and on the move? could it still be wastegates? there was no noise before the dp install.
thanks

TurboFan · 06-08-2009, 10:22 AM

Wastegate is only on decel, sounds like somone stuck a playing card in your bicycle spokes. Not on accel.

eyemdbmw · 06-08-2009, 02:18 PM

Quote:

Originally Posted by TurboFan

Wastegate is only on decel, sounds like somone stuck a playing card in your bicycle spokes. Not on accel.

thanks. i better get under the car again

Dangerlucas · 06-08-2009, 07:36 PM

Check out this link: http://www.bmwtis.com/tsb/bulletins/...p/B111307g.htm

I think it describes the sound you are hearing here: "Complaints received regarding a slight rattle from this area under steady acceleration in the 2,000 RPM to 4,000 RPM range are due to the rotating waste gate valve face; this is a characteristic of the mechanical waste gate. The rotating waste gate valve face is necessary to ensure proper sealing. This slight rattle noise is considered normal operation of the mechanical waste gate valve. No repair should be attempted for this type of rattling complaint."

I notice the same thing with my car, but according to this it's normal.

Hit_Apex · 06-08-2009, 09:59 PM

Under acceleration your engine loads in the direction that can cause interference around the downpipes. Get some bright light under there and look where it's rubbing.

eyemdbmw · 06-09-2009, 08:30 AM

Quote:

Originally Posted by Dangerlucas

Check out this link: http://www.bmwtis.com/tsb/bulletins/...p/B111307g.htm

I think it describes the sound you are hearing here: "Complaints received regarding a slight rattle from this area under steady acceleration in the 2,000 RPM to 4,000 RPM range are due to the rotating waste gate valve face; this is a characteristic of the mechanical waste gate. The rotating waste gate valve face is necessary to ensure proper sealing. This slight rattle noise is considered normal operation of the mechanical waste gate valve. No repair should be attempted for this type of rattling complaint."

I notice the same thing with my car, but according to this it's normal.

thanks! i couldn't find the link but this is awsome news! if this is true, i did the dp install properly. i might just get under the car anyway.
i knew you guys wouldn't let me down.
thanks again

eyemdbmw · 06-09-2009, 08:31 AM

Quote:

Originally Posted by Hit_Apex

Under acceleration your engine loads in the direction that can cause interference around the downpipes. Get some bright light under there and look where it's rubbing.

will do. thanks

06-02-2009, 09:35 AM	#1
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	wastegate rattle post 1/08 build anyone have significant rattle with post 1/08 production? i installed catless dp's and have rattle while accelerating. i assume this is wategate rattle made more obvious by lack of dp's...unless i installed the AR dp's incorrctly but fitment seems good. anyone else have this problem with a post 1/08 build? __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-02-2009, 09:42 AM	#2
stressdoc Moderator 618 Rep 10,855 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	Rattle while accelerating? That is not likely to be the wastegate actuators, and if it is, then I suggest you get them looked at and adjusted/replaced. __________________ My recent ED photos: http://f80.bimmerpost.com/forums/sho....php?t=1026808 my not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829 Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
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06-02-2009, 09:52 AM	#3
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	yup rattle while accelerating. could it be the dp install causing the rattle? __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-02-2009, 10:30 AM	#4
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	should it not be rattling while accelerating? __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-02-2009, 11:16 AM	#6
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	k thanks. i've noticed the rattle at low rpms during acceleration. i'll try the deceleration test. just concerened since my car is a 2/08 build __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-04-2009, 10:30 AM	#7
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	well guys i'm not convinced i have wastegate rattle. i only hear the metalic rattle when accelerating. i tried the decel. test mentioned above and could not hear it. also it doesn't go away after the car is warmed up. i will try to post some audio. any thoughts? the dp's aren't touching but they are close. the shorter dp is touching that heat shield thingy. i may have to have someone like AMS look at it. thanks for any advice. ara __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-04-2009, 12:29 PM	#8
7woodman7 Private First Class 98 Rep 176 Posts Drives: M4 F83 Join Date: Feb 2009 Location: Austria iTrader: (0)	this is the wastegate rattling production date 02/2007 http://www.youtube.com/watch?v=zuYY7rVcs-s
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06-05-2009, 01:40 PM	#10
eyemdbmw Second Lieutenant 15 Rep 235 Posts Drives: 2008 e93 335i space/coral/pop Join Date: Jan 2008 Location: bloomington, il iTrader: (1)	one more thing guys. i only hear the metallic rattle when i step on it and the car is in motion and in gear. if the car is stopped, i can rev it up and no sound. if it is in motion but not in gear and i rev it up, no sound. if it is in motion and in gear and i don't step on it, no sound. any ideas? ara __________________ cosmetic mods - BBS LM's, body colored reflectors, 30% tint permormance mods - procede rev II, vishnu dci, helix fmic, ar catless dp's
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06-05-2009, 02:57 PM	#11
Ghost170 Brigadier General 89 Rep 3,355 Posts Drives: VIP Sport 335! Join Date: Aug 2007 Location: N CA iTrader: (8) Garage List 2007 BMW e92 335! [6.34]	It may seem that the rattle is cause by the after market DPs. Check the DP to see if it is rubbing anywhere, or needs to be adjusted. Was it making a noise before the DP? __________________ *07 E92 335!* AA AE GP HR LC M3 KW BMS BMW LUX CYBA STRI WORK HELIX MTECH LSWEEE(Wavetrac)!
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06-08-2009, 10:22 AM	#13
TurboFan Ski bum 317 Rep 6,198 Posts Drives: sideways Join Date: Aug 2007 Location: Knee deep in the pow iTrader: (8)	Wastegate is only on decel, sounds like somone stuck a playing card in your bicycle spokes. Not on accel. __________________ 1999 e46 328i Ti Silver / Black[retired] 2007 e90 335xi Jet Black / Black[retired] 2011 e70 X5 35d Vermillion Red / Cinnamon 2011 e92 M3 LeMans / Fox Red extended
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06-08-2009, 07:36 PM	#15
Dangerlucas Captain 30 Rep 621 Posts Drives: BMW 135i Join Date: Jul 2008 Location: Bay Area, CA iTrader: (2) Garage List 2008 135i [5.50]	Check out this link: http://www.bmwtis.com/tsb/bulletins/...p/B111307g.htm I think it describes the sound you are hearing here: "Complaints received regarding a slight rattle from this area under steady acceleration in the 2,000 RPM to 4,000 RPM range are due to the rotating waste gate valve face; this is a characteristic of the mechanical waste gate. The rotating waste gate valve face is necessary to ensure proper sealing. This slight rattle noise is considered normal operation of the mechanical waste gate valve. No repair should be attempted for this type of rattling complaint." I notice the same thing with my car, but according to this it's normal. __________________ 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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06-08-2009, 09:59 PM	#16
Hit_Apex Riding the knock sensor 2371 Rep 1,591 Posts Drives: 21 X5MC \| 23 M4CSL Join Date: May 2008 Location: PCH iTrader: (1) Garage List 2021 BMW X5MC [0.00]	Under acceleration your engine loads in the direction that can cause interference around the downpipes. Get some bright light under there and look where it's rubbing. __________________
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