Cold Start Rattle - Page 3 - MBWorld.org Forums

Jul 25, 2023 | 12:29 AM

#51

GLKwanter

Member

Joined: Apr 2023

Posts: 166

Likes: 32

Rental

Mystery oil, seafoam, and faking the car out that you're going to start it are my favorite solutions. I want to hear feedback from everyone that posted about those to know if it still working. 😂

Dec 3, 2025 | 02:01 AM

#52

dnam85

Newbie

Joined: Dec 2024

Posts: 14

Likes: 2

Hi guys, sorry to bring up the old post again. I am having exactly the same problem. Grinding noise at cold start after a few seconds when rpm comes down after engine start and also the car shakes too for a 2 seconds then it stablizes.

Anyone found a solution to this problem?

Thanks

Dec 12, 2025 | 07:35 AM

#53

TurboNashra

Newbie

Joined: Jan 2025

Posts: 4

Likes: 0

From: Aldwick,West Sussex

W211&209

Cold Start Rattle

Quote:

Originally Posted by Marsaydeez

Hello, has any heard this noise before and found what it was? It happens when the car sits for a day. I noticed it happens as the rpms rev down after the cold start. It lasts for a second or less. Its a quick short ratter sound. Heres a video of the noise.

08 E350
https://youtu.be/de1PrOd6UuM

thank you!

Mine the E280 does make a slight rattle but does not have Metallic sounds ,that sound on yours does sounds like from the timing chain hitting the cover .

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