M156 (C63) making a loud high pitched noise
01-03-2023, 09:24 AM
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2014 C63, 2008 CL500, 2008 Cayenne Turbo
M156 (C63) making a loud high pitched noise
Hi!
A few weeks back I got my first M156 in the form of a C63 (2014) with just around 40k kilometres (~25k miles). It has only driven maybe 25 kilometres (~15 miles) after buying - to a warm garage and then after a couple of days from there to a different parking space. During the initial test drive (before buying) and these two drives everything seemed totally fine. However, after sitting in the second parking space (under a roof, but outside in around 0°C or 32°F) for a week I started the car and at first didn't pick up on anything weird and went inside to let it run for a bit. After a few minutes I go outside and hear a loud high pitched noise (video attached) coming from the engine bay. Has anyone had a similar issue or knows what this could be?
Thanks!
A few weeks back I got my first M156 in the form of a C63 (2014) with just around 40k kilometres (~25k miles). It has only driven maybe 25 kilometres (~15 miles) after buying - to a warm garage and then after a couple of days from there to a different parking space. During the initial test drive (before buying) and these two drives everything seemed totally fine. However, after sitting in the second parking space (under a roof, but outside in around 0°C or 32°F) for a week I started the car and at first didn't pick up on anything weird and went inside to let it run for a bit. After a few minutes I go outside and hear a loud high pitched noise (video attached) coming from the engine bay. Has anyone had a similar issue or knows what this could be?
Thanks!
Last edited by ranc; 01-03-2023 at 11:11 AM.
