BMW 318i 2017 F30 Engine Startup Rattle

jon99 · 06-23-2018, 09:31 PM

Hi all,

I have a BMW 318i 2017 F30 and after a few months of owning it, I have noticed a strangle rattle / clunking sound as soon as the engine starts up. It lasts for 1-2 seconds and disappears. Is this normal?
At times, the same sound can be heard when the engine starts up again at a set of traffic lights due to the start-stop and also lasts 1-2 seconds.

Another thing I noticed was when in Sport mode, every time the accelerator is pressed and let go immediately, I notice the turbo sound like those you would get in a modified car. Is this also normal in a German saloon?

I will upload a video/audio recording of the rattling noise some time today

Thanks!

jon99 · 06-23-2018, 11:19 PM

I have found a video online which has the exact same sound upon startup.

Around the 4-5sec mark, a rattle or clunk can be heard for a short duration. This sound occurs not only during cold start up, but even after starting up the car after going to the grocery store etc.

Any suggestions will be appreciated

Will also upload the turbo sound sometime later.

06-23-2018, 09:31 PM	#1
jon99 Registered 1 Rep 2 Posts Drives: BMW 318i 2017 Join Date: Jun 2018 Location: New Zealand iTrader: (0)	BMW 318i 2017 F30 Engine Startup Rattle Hi all, I have a BMW 318i 2017 F30 and after a few months of owning it, I have noticed a strangle rattle / clunking sound as soon as the engine starts up. It lasts for 1-2 seconds and disappears. Is this normal? At times, the same sound can be heard when the engine starts up again at a set of traffic lights due to the start-stop and also lasts 1-2 seconds. Another thing I noticed was when in Sport mode, every time the accelerator is pressed and let go immediately, I notice the turbo sound like those you would get in a modified car. Is this also normal in a German saloon? I will upload a video/audio recording of the rattling noise some time today Thanks! Last edited by jon99; 06-23-2018 at 09:37 PM..
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06-23-2018, 11:19 PM	#2
jon99 Registered 1 Rep 2 Posts Drives: BMW 318i 2017 Join Date: Jun 2018 Location: New Zealand iTrader: (0)	I have found a video online which has the exact same sound upon startup. Around the 4-5sec mark, a rattle or clunk can be heard for a short duration. This sound occurs not only during cold start up, but even after starting up the car after going to the grocery store etc. Any suggestions will be appreciated Will also upload the turbo sound sometime later.
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