Advice! waste gate rattle 08 335i

frankienegs · 12-09-2013, 09:41 PM

I just bought a 2008 335i 6mt and absolutely love it! However, after owning the car for a few days I noticed how loud it has been rattling. I did some research and found a lot of people have this same problem with the turbos/waste gate and I saw one guy said to disconnect the vacuum hose and listen to see if the rattle goes away. I did this and the rattle 100% went away. So now when I go to the dealer and tell them about this problem, even tho the new car warranty no long exist, the bmw dealer will take care of it under some extended warranty??? Has anyone else went through this same situation? The rattle drives me insane

niko_delosreyes · 12-09-2013, 10:16 PM

The dealer fixed the problem for me with extended warranty. It eventually came back but not as drastic as the first time. I just unplugged the vacuum hose in the trunk and it hasn't rattled since.

-Niko

mike5809 · 12-10-2013, 11:34 AM

As stated above - A BMW dealership should fix this issue as I believe the warranty for the wastegates were extended up to 84,000 miles.

More than likely they will adjust the wastegate actuators and if the issue persists they will then replace the actuators. But be prepared for the noise to come back. I have had mine adjusted twice and replaced once and I still have the rattle.

Bmw3thirty5 · 12-10-2013, 11:41 AM

Quote:

Originally Posted by Nikodlr

The dealer fixed the problem for me with extended warranty. It eventually came back but not as drastic as the first time. I just unplugged the vacuum hose in the trunk and it hasn't rattled since.

-Niko

Whoa what? There's a vacuum hose we can unplug to decrease waste gate rattle? Can you further explain? What's removing the hose do? Does it throw a code? Where did you learn of this? How does it directly effect the waste gate? Answers answers!

EastCoast335i · 12-10-2013, 11:57 AM

Quote:

Originally Posted by Bmw3thirty5

Whoa what? There's a vacuum hose we can unplug to decrease waste gate rattle? Can you further explain? What's removing the hose do? Does it throw a code? Where did you learn of this? How does it directly effect the waste gate? Answers answers!

OP is a bit confused...
The rattle he is referring to is exhaust flap rattle, not wastegate rattle.

frankienegs · 12-10-2013, 01:38 PM

Well I made my appointment for tomorrow morning so well see what they say lol

rosica · 12-10-2013, 07:49 PM

Quote:

Originally Posted by frankienegs

Well I made my appointment for tomorrow morning so well see what they say lol

You will most likely get new waste gates.

only1harry · 12-10-2013, 08:29 PM

I am getting the (real) wastegate rattle on my CPO 2011 335 (N55) that I picked up a week ago with only 23k miles. I guess they never bothered fixing the actuator problem with the newer ones either. They think driving a 55k car (that was sticker on my car) with a clunking noise is normal and people will get hypnotized by it or something. Fricking BMW. Now I have to bring it back. The rattle is terribly loud when the car is cold, but it's still there when it warms up, just not as loud.

Anyone else have the wastegate rattle with an N55?

Harry

12-09-2013, 09:41 PM	#1
frankienegs New Member 0 Rep 9 Posts Drives: e92 335i 6mt Join Date: Sep 2011 Location: New Jersey iTrader: (0) Garage List 2008 335i [0.00]	Advice! waste gate rattle 08 335i I just bought a 2008 335i 6mt and absolutely love it! However, after owning the car for a few days I noticed how loud it has been rattling. I did some research and found a lot of people have this same problem with the turbos/waste gate and I saw one guy said to disconnect the vacuum hose and listen to see if the rattle goes away. I did this and the rattle 100% went away. So now when I go to the dealer and tell them about this problem, even tho the new car warranty no long exist, the bmw dealer will take care of it under some extended warranty??? Has anyone else went through this same situation? The rattle drives me insane Last edited by frankienegs; 07-14-2015 at 05:19 PM..
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12-09-2013, 10:16 PM	#2
niko_delosreyes Private 14 Rep 123 Posts Drives: 17 BMW F80 M3 ZCP Join Date: Aug 2012 Location: Los Angeles, CA iTrader: (1)	The dealer fixed the problem for me with extended warranty. It eventually came back but not as drastic as the first time. I just unplugged the vacuum hose in the trunk and it hasn't rattled since. -Niko
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12-10-2013, 11:34 AM	#3
mike5809 Major 196 Rep 1,115 Posts Drives: '11 335i M-Sport [LeMans Blue] Join Date: May 2011 Location: Chambersburg, PA iTrader: (7) Garage List 2011 BMW 335i M-Spo ... [9.66]	As stated above - A BMW dealership should fix this issue as I believe the warranty for the wastegates were extended up to 84,000 miles. More than likely they will adjust the wastegate actuators and if the issue persists they will then replace the actuators. But be prepared for the noise to come back. I have had mine adjusted twice and replaced once and I still have the rattle. __________________ '11 335i M-Sport xDrive Coupe [LMB] COBB V3 & PTF Tune \| E45 \|4in BERK DP \| VRSF 5in FMIC \| BMS Intake \| ER CP \| Exotics Tuning CF Lip \| CF Diffuser \| Eibach Springs \| Bilstein Shocks '07 BMW 335i Coupe & BMW Z4 3.0i - Gone
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12-10-2013, 01:38 PM	#6
frankienegs New Member 0 Rep 9 Posts Drives: e92 335i 6mt Join Date: Sep 2011 Location: New Jersey iTrader: (0) Garage List 2008 335i [0.00]	Well I made my appointment for tomorrow morning so well see what they say lol
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12-10-2013, 08:29 PM	#8
only1harry Second Lieutenant 43 Rep 257 Posts Drives: 2011 E92 335i xDrive Join Date: Nov 2013 Location: NY iTrader: (0)	I am getting the (real) wastegate rattle on my CPO 2011 335 (N55) that I picked up a week ago with only 23k miles. I guess they never bothered fixing the actuator problem with the newer ones either. They think driving a 55k car (that was sticker on my car) with a clunking noise is normal and people will get hypnotized by it or something. Fricking BMW. Now I have to bring it back. The rattle is terribly loud when the car is cold, but it's still there when it warms up, just not as loud. Anyone else have the wastegate rattle with an N55? Harry
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