Annoying rattle

[EK993]

Got a really annoying rattle that has developed on my 2019 570S. Has around 1000 miles on it now. Only happens at idle and only occasionally. When it does happen it’s so loud and annoying. Can’t tell where it’s coming from - front of car, rear of car, underneath. Tried pressing various pieces of trim but can’t isolate it. Will take it to the dealer but It’s bound to not happen when it’s there.

Made a video of it - anyone experience anything similar to this?

https://youtu.be/ZjPJa79V6ao

[EK993]

S555DFH said:

Is it coming from the fan? Does the noise alter when you change the fan speed?

No - it only happens when stationary / at idle, maybe when the rpms are at a precise point that causes something plastic somewhere to vibrate and rattle. Literally pressed on every surface I can find from the dashboard / all air vents / instrument cluster, underside of dash, behind seats etc.

The infuriating thing is I can't reproduce it at will - it only happens occasionally which is going to make it hard to show when I bring it in to the service center.

My wife was in the car on one occasion when it happened and she too couldn't tell where it was coming from (front / back / underneath) as sound bounces all round the cabin.

[EK993]

Thanks for the suggestions guys

[EK993]

Will check the interior lights too.

[EK993]

Got it booked in for Sept 9th - will update the thread if they find the source.

Was rattling away today, checked the interior lights, its not them. Interestingly as I was shifting around in the seat trying to isolate which direction it was coming from it seemed to stop and start - although that could be coincidence. All I know is that it is driving me nuts!

[EK993]

Wanted to close this out - my dealer did a great job and tracked it down to a coolant hose that was vibrating against the frame of the car. Now just got to wait for a new windscreen to arrive to replace the one that cracked.... apparently there is a big backlog.