Unusual noise around 25 mph
Thread Starter
Junior Member
Joined: Sep 2021
Posts: 40
Likes: 12
From: San Jose, CA
2020 GLC300 4matic, 2017 C300 4matic
Unusual noise around 25 mph
Hi all,
2019 s560 rwd. I am hearing unusual noise from engine bay. Sounds like EV vehicle accelerating Starting 20 mph, most pronounced around 25 mph and goes away over 30 mph.
not AC related, not engine rpm related.
anyone experienced this before?
thanks
2019 s560 rwd. I am hearing unusual noise from engine bay. Sounds like EV vehicle accelerating Starting 20 mph, most pronounced around 25 mph and goes away over 30 mph.
not AC related, not engine rpm related.
anyone experienced this before?
thanks
Thread Starter
Junior Member
Joined: Sep 2021
Posts: 40
Likes: 12
From: San Jose, CA
2020 GLC300 4matic, 2017 C300 4matic
MBWorld Fanatic!




Joined: Mar 2018
Posts: 1,073
Likes: 596
From: Florida
18 AMG GTC and 22 F150 Limited. Past owner 16 Maybach, 17 Brabus Smartcar, 06 Ford E150, and 22 G70
Find a safe place to do this. At the speed that the noise is happening turn the steering wheel left and then right and listen to see if the noise goes away. If it does you need a new front wheel hub bearing. VERY easy to replace.
Noise occurs with a/c on off?
Car mileage?
2019 560
If this is what you are experiencing, it is nothing to worry about.






