What the efff!

e92htx · 03-21-2010, 09:43 PM

I just recently purchased preowned e92 with 38K and I've had it for about 1 month now, I love it so far up until today.

I decided to put the car in "Sport" mode on the freeway for a little fun being it was a nice day (60F Low humidity) and when I punched it up to about 80mph my car jerked and a engine light came on, the one that shows half/half engine?? And when I got home, I put it on park and revved it, there was a sound coming from the engine bay that sounded like a buzzing noise or another way to describe it was if you was to put a small bead into a can and shook it....

Turned off the car, turned it back on and the light was gone...I drove it around the block, no light...I punched it down the street hitting about 5k rpm and the light came back on....I did this a few times shutting the car off and then punching it again...Light comes on and off. The buzzing sound is still there. Taking it to the dealer tomorrow and be like "wtf mate!"

I would have gone today but they're closed on Sundays. I'm scared shitless....

summary:
drove the car "hard"
half/half engine light comes on
buzzing noise from engine bay on throttle
engine light comes on and off

What could it be?

btw, there is no real noticeable power loss.

Syndicategt · 03-21-2010, 09:58 PM

Sounds like a vacuum line could have popped off. Since the throttle is making a sound, check the chargepipe connection on the throttle body. After that, I would inspect the DV's and all the other vacuum lines.

e92htx · 03-21-2010, 10:02 PM

Did a search and it seems like it could be a wastegate failure? I watched a video on one of the threads and it sounds just like it...

BTW if a charge pipe comes off the car would pretty much go into limp mode or shut off, so I defiantly don't think it's that. If a vacuum line popped off I would notice loss in boost/power.

Mr. 5 · 03-21-2010, 10:04 PM

Quote:

Originally Posted by Syndicategt

Sounds like a vacuum line could have popped off. Since the throttle is making a sound, check the chargepipe connection on the throttle body. After that, I would inspect the DV's and all the other vacuum lines.

Yah, it sounds like a vacuum leak but it may be a fuel pump.
How was your gas level?

e92htx · 03-21-2010, 10:07 PM

Quote:

Originally Posted by Mr. 5

Yah, it sounds like a vacuum leak but it may be a fuel pump.
How was your gas level?

When it occurred my gas level was at 1/4 tank. I refueled to full and it still did it.

e92htx · 03-21-2010, 10:12 PM

Sounds like this, but only when I rev and release the throttle...Then the noise goes away until I rev again...

badass335 · 03-21-2010, 10:13 PM

Get the codes read! It would give everyone including you a better idea!

03-21-2010, 09:43 PM	#1
e92htx Enlisted Member 0 Rep 38 Posts Drives: 07 BMW 335i Coupe Space Gray Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	I just recently purchased preowned e92 with 38K and I've had it for about 1 month now, I love it so far up until today. I decided to put the car in "Sport" mode on the freeway for a little fun being it was a nice day (60F Low humidity) and when I punched it up to about 80mph my car jerked and a engine light came on, the one that shows half/half engine?? And when I got home, I put it on park and revved it, there was a sound coming from the engine bay that sounded like a buzzing noise or another way to describe it was if you was to put a small bead into a can and shook it.... Turned off the car, turned it back on and the light was gone...I drove it around the block, no light...I punched it down the street hitting about 5k rpm and the light came back on....I did this a few times shutting the car off and then punching it again...Light comes on and off. The buzzing sound is still there. Taking it to the dealer tomorrow and be like "wtf mate!" I would have gone today but they're closed on Sundays. I'm scared shitless.... summary: drove the car "hard" half/half engine light comes on buzzing noise from engine bay on throttle engine light comes on and off What could it be? btw, there is no real noticeable power loss. Last edited by e92htx; 03-21-2010 at 09:50 PM..
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03-21-2010, 09:58 PM	#2
Syndicategt Brigadier General 164 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Sounds like a vacuum line could have popped off. Since the throttle is making a sound, check the chargepipe connection on the throttle body. After that, I would inspect the DV's and all the other vacuum lines. __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
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03-21-2010, 10:02 PM	#3
e92htx Enlisted Member 0 Rep 38 Posts Drives: 07 BMW 335i Coupe Space Gray Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	Did a search and it seems like it could be a wastegate failure? I watched a video on one of the threads and it sounds just like it... BTW if a charge pipe comes off the car would pretty much go into limp mode or shut off, so I defiantly don't think it's that. If a vacuum line popped off I would notice loss in boost/power.
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03-21-2010, 10:12 PM	#6
e92htx Enlisted Member 0 Rep 38 Posts Drives: 07 BMW 335i Coupe Space Gray Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	Sounds like this, but only when I rev and release the throttle...Then the noise goes away until I rev again...
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03-21-2010, 10:13 PM	#7
badass335 Lieutenant Colonel 116 Rep 1,948 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	Get the codes read! It would give everyone including you a better idea!
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