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      03-22-2009, 03:09 AM   #1
hl0m4n
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Question Those W/ Wastegate Rattle Chime In...

i thought my car was fine and didn't have rattle but it seems i only get the rattle when the car is cold. after the car has warmed up the rattle at idle goes away but, when the car is cold there is a serious metallic clicking noise at idle.

so i must ask to the others that have had the rattle and went to the dealer for update, was it only when car was cold and not warmed up?

first time i noticed the rattle i was both happy and sad at the same time...
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      03-22-2009, 03:29 AM   #2
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Rattles at cold temps are normal. It's the valvetrain and you'll hear it most prominently at idle. WG rattles continue well into operating temps and in fact occur only when there's throttle activity (on slight accel or decel).
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      03-22-2009, 09:11 AM   #3
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The fix from the SIB may fix things for a while, but I'm in the same boat again. The WG rattle is more prevalent on deceleration.

Supposedly I never received the SW update that was perscribed in that bulletin, at least, that's what BMW says. All they did was replace HW. But I'm not buying anything they say anymore as I'm convinced that they don't have a clue. My experience has shown me that they're just like any other manufacturer. At least from a tech and service perspective.
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      03-23-2009, 10:33 PM   #4
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lol... only if you knew.
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      03-23-2009, 10:36 PM   #5
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Who? Knew what?
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      03-23-2009, 11:02 PM   #6
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Only if you know what a pain in the ass this noise has been to us tech's the SIB is BS and doesnt fix the issue!
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      03-23-2009, 11:06 PM   #7
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Only if you know what a pain in the ass this noise has been to us tech's the SIB is BS and doesnt fix the issue!
Hpoe this isn't a repeat for me in the future.
They are replacing my wastegate actuator as they say I'm throwing codes and going into limp mode.
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      03-23-2009, 11:11 PM   #8
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IMO thats not going to fix the issue
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      03-24-2009, 12:25 AM   #9
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what is bmw tech?
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      03-24-2009, 03:11 AM   #10
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Only if you know what a pain in the ass this noise has been to us tech's the SIB is BS and doesnt fix the issue!
BMWTECH: how did you fix the rattles in the end, assuming the actuator replacement SIB is bollocks and there is an ultimate fix?

By way of background, I've already had both my actuators replaced but the rattle is still there and very noticeable...
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      03-24-2009, 03:28 AM   #11
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after a field tech was sent out to asset my rattling wastegate, they concluded that noise, rattle during acceleration, "It's Normal", .. I brought them the latest SIB and that didn't help, said they already applied all the fixes during the last visit, HW and Update to it.. mind you the fix was back in june last year, i got updated to 29.2 ... if this is a plan to discourage people from purchasing their lease car, then i think it's working.
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      03-24-2009, 05:49 AM   #12
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rattle

my wg rattled last summer but my dealer fixed it with no problems. i thought mine could have been caused by the increased boost from dinan stage 2 but now i'm not sure.
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      03-24-2009, 11:50 AM   #13
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just a quick question, is it normal that the wastegates rattle when revving up in neutral then let off the gas?
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      03-24-2009, 12:17 PM   #14
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just a quick question, is it normal that the wastegates rattle when revving up in neutral then let off the gas?
nope... go to dealership and get it fixed First they'll reprogram the car, replace the wastegates, then the tubing, and then, if none of those work, maybe you'll get new turbo's like I did
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      03-24-2009, 12:21 PM   #15
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my wg rattled last summer but my dealer fixed it with no problems. i thought mine could have been caused by the increased boost from dinan stage 2 but now i'm not sure.
nope... it's a common problem among stock cars (ie NOT due to Dinan).
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      03-24-2009, 10:02 PM   #16
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Dealer can't fix my rattle even change all the wastegate and actuator... ... I believe they also updated mine for the latest softwear (got the lag after that)! End up I used Mr 5 way to fix the rattle and it's not happen since!. Big to Mr 5!
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      03-24-2009, 11:15 PM   #17
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does the rev in neutral apply to autos as well? can autos also rev in park and see if we have rattle?

i would go outside and do it now but it 12.15am and it freezing cold out
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      03-24-2009, 11:53 PM   #18
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does the rev in neutral apply to autos as well? can autos also rev in park and see if we have rattle?

i would go outside and do it now but it 12.15am and it freezing cold out

You can put your car in neutral for auto! BMW said a little bit of rattle is normal, aspecially when the engine is cold!
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      03-25-2009, 12:18 AM   #19
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Thanks man, i will go to the dealer to get it fixed soon, but what if I don't get it fixed, does it hurt anything?
Quote:
Originally Posted by skim7x View Post
nope... go to dealership and get it fixed First they'll reprogram the car, replace the wastegates, then the tubing, and then, if none of those work, maybe you'll get new turbo's like I did
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      03-25-2009, 11:20 AM   #20
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Got the reflash to 32.2.2. Rattle still present when revving in neutral - plan on taking my car back to get new wastegates/acuators...
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      03-25-2009, 11:21 AM   #21
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Thanks man, i will go to the dealer to get it fixed soon, but what if I don't get it fixed, does it hurt anything?
Other than a possible loss of boost and your sense of pride when onlookers ask you why your BMW sounds like a John Deere riding mower, I think there's no harm done.
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      03-25-2009, 06:41 PM   #22
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Waste

I had print out of SIB in hand couple of weeks ago. I have been working on mine for about 3 months now. Any ways BMW engineer had just came through both dealerships here in Vegas. Now that SIB is basically worthless. I talked to service manager and he basically said same thing as bmwtech up top. At this time current SIB does not totally fix the issue in all instances. So at this time I get the joy of driving around with noise. They are suppose to have me on list for when new update comes out, but I have come to realize I get information here faster than my SA.
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