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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Regarding weird rattle on second gear - cold engine



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      09-13-2013, 02:31 AM   #1
Kevlemanblue
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Regarding weird rattle on second gear - cold engine

Hi guys,

When I start the car in the morning, and drive off, in second gear you can hear this strong rattle noise coming from the engine side and disappears after 4-6seconds.

I drive a 2009 E90 LCI 320I.

Anyone noticed this and found any solutions?

Thanks
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      09-13-2013, 04:07 AM   #2
Phil325i
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Auto or manual?
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      09-13-2013, 05:29 AM   #3
Kevlemanblue
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Automatic, sounds terrible. I hear it from really old cars often as well.
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      09-13-2013, 07:27 AM   #4
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Time for a fluid and filter change? (Ignore BMW's 'lifetime fill' nonsense).
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      09-14-2013, 01:09 AM   #5
Kevlemanblue
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It's done 67KMS.. Ill see. next service.
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      09-14-2013, 07:17 AM   #6
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Is it under moderate to heavy acceleration? Could be pinging from predetonation. The ECU does not always eliminate this. May indicate some carbon build up or crappy gas. A solution might be a bottle of techron.
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      09-14-2013, 08:45 PM   #7
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What do you mean? When I step on it it doesn't make this noise, also its a slight up hill that I drive up as well, about 50metres, within in this time it makes this noise..
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