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      06-11-2019, 12:31 AM   #1
jc16
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Drives: f90 m5 comp
Join Date: May 2019
Location: Ontario

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cold start engine knock! input please

Hey guys just another thing I noticed with my car. Every time I start the car cold (over night) I hear some knocking noise from the engine. It only happens when the engine is completely cold. You hear it right after the engines rpm drops from the cold start and will slowly disappear within a few minutes as the engine warms up. The car is brand new has 3000km on it and have noticed this before the break in service. Is this something i need to worry about? anybody else notice this? I will attach a video of the noise thank you


Last edited by jc16; 06-11-2019 at 12:39 AM..
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