Rattling sound after changing VCG

navf30 · 09-29-2020, 07:42 PM

I replaced the Valve Cover Gasket on my 2014 335xi and on startup/idle, this rattle sound comes from the engine:
https://youtu.be/xKjcX0Vnim4

Also, not sure if related, but I noticed an engine squeal noise when turning the car off:
https://youtu.be/0zvxxybCD6A
Happens around 7 seconds

Any clue what it might be?

njdangelo · 09-30-2020, 07:43 AM

That "rattle" sound seems like properly functioning injectors and evap system to me. Not hearing anything out of the ordinary though. I will say that when you remove the plastic engine shield the sound gets much louder. I was surprised how much that shield did for noise reduction.
Second noise not so sure, maybe the drive belt slightly slipping on a bearing or pulley as they stop? I'm sure someone else will chime in.

09-29-2020, 07:42 PM	#1
navf30 Registered 0 Rep 1 Posts Drives: 2014 BMW 335xi Join Date: Sep 2020 Location: NJ iTrader: (0)	Rattling sound after changing VCG I replaced the Valve Cover Gasket on my 2014 335xi and on startup/idle, this rattle sound comes from the engine: https://youtu.be/xKjcX0Vnim4 Also, not sure if related, but I noticed an engine squeal noise when turning the car off: https://youtu.be/0zvxxybCD6A Happens around 7 seconds Any clue what it might be? Last edited by navf30; 09-29-2020 at 08:26 PM..
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09-30-2020, 07:43 AM	#2
njdangelo Captain 436 Rep 844 Posts Drives: 2019 x5 50i Join Date: Sep 2019 Location: CT iTrader: (1)	That "rattle" sound seems like properly functioning injectors and evap system to me. Not hearing anything out of the ordinary though. I will say that when you remove the plastic engine shield the sound gets much louder. I was surprised how much that shield did for noise reduction. Second noise not so sure, maybe the drive belt slightly slipping on a bearing or pulley as they stop? I'm sure someone else will chime in. __________________ 2019 x5 50i - current 2016 340i THP stage 2 - gone but not forgotten.
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