Grinding noise after shut off??

Mlevin2 · 05-19-2011, 07:48 PM

Hey guys. I bought a cpo's 08' 335xi in March of this year. So far i love the car and have had no complaints. The only mods ive done are wheels tires and springs. I havent even touched the engine. The car has 38k miles on it, and after seeing the carfax i know it hasnt had any major issues at all. Now all of a sudden i am noticing this horrible grinding noise coming from below the car after i shut it off. The car starts fine and everything. I can also hear a slight scratching when i give it some gas at idle. Has anyone had any experience with this issue before. None of my engine lights are showing, although it does say it needs service next month. Please help. This grinding noise is very loud and noticeable.

Thanks,
Matt

Chriztofor · 05-20-2011, 09:09 AM

Post a video from your phone.

Mspooner · 09-18-2011, 03:33 PM

I just started having the same grinding noise under the car at shut off. Sometimes it also produces an extra sound like a loud clapping from the back of the car. Any thoughts?

aakrusen · 09-18-2011, 04:53 PM

Could be the transfer case motor/solenoid that XI owners report failing. I had a problem that I talked to a BMW tech about and he asked if I was hearing the same sounds you are describing. Thankfully I don't have that issue but I bet that's what you have. Since you're CPO, take it in and tell them you think it's that part.

Mspooner · 09-18-2011, 06:46 PM

Thanks. Will call tomorrow.

e90pilot · 09-19-2011, 03:24 PM

The starter bendix may not be retracting all the way.

ynot335i · 08-02-2014, 07:31 PM

Did you ever get to the bottom of this?? My car started doing this today. Thanks

05-19-2011, 07:48 PM	#1
Mlevin2 Private 3 Rep 51 Posts Drives: 08' 335xi Join Date: Mar 2011 Location: NJ iTrader: (0)	Grinding noise after shut off?? Hey guys. I bought a cpo's 08' 335xi in March of this year. So far i love the car and have had no complaints. The only mods ive done are wheels tires and springs. I havent even touched the engine. The car has 38k miles on it, and after seeing the carfax i know it hasnt had any major issues at all. Now all of a sudden i am noticing this horrible grinding noise coming from below the car after i shut it off. The car starts fine and everything. I can also hear a slight scratching when i give it some gas at idle. Has anyone had any experience with this issue before. None of my engine lights are showing, although it does say it needs service next month. Please help. This grinding noise is very loud and noticeable. Thanks, Matt
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05-20-2011, 09:09 AM	#2
Chriztofor Colonel 103 Rep 2,783 Posts Drives: '06 325i and '13 X5 Join Date: Feb 2010 Location: Chicago Burbs iTrader: (1)	Post a video from your phone. __________________ If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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09-18-2011, 03:33 PM	#3
Mspooner Registered 0 Rep 2 Posts Drives: 2009 335xi Join Date: Sep 2011 Location: Massachusetts iTrader: (0)	I just started having the same grinding noise under the car at shut off. Sometimes it also produces an extra sound like a loud clapping from the back of the car. Any thoughts?
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09-18-2011, 04:53 PM	#4
aakrusen To Punish and Enslave 33 Rep 243 Posts Drives: with both hands on the wheel Join Date: Jul 2008 Location: Under the hood iTrader: (2) Garage List 2008 M3 E92 [9.00]	Could be the transfer case motor/solenoid that XI owners report failing. I had a problem that I talked to a BMW tech about and he asked if I was hearing the same sounds you are describing. Thankfully I don't have that issue but I bet that's what you have. Since you're CPO, take it in and tell them you think it's that part.
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09-18-2011, 06:46 PM	#5
Mspooner Registered 0 Rep 2 Posts Drives: 2009 335xi Join Date: Sep 2011 Location: Massachusetts iTrader: (0)	Thanks. Will call tomorrow.
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09-19-2011, 03:24 PM	#6
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	The starter bendix may not be retracting all the way. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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08-02-2014, 07:31 PM	#7
ynot335i New Member 0 Rep 21 Posts Drives: 09 335i SG Join Date: Jan 2011 Location: Boston iTrader: (0) Garage List 2009 BMW 335I [0.00]	Did you ever get to the bottom of this?? My car started doing this today. Thanks
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