SL/R232: 2022 W232 Grinding Noise Hard Left/Right Turn When Cold
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Junior Member
Joined: Apr 2011
Posts: 38
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From: Saratoga, California
'22 AMG SL63 '12 SLS '17 GLS63 '15 S63 '09 SL63 Silver Arrow '21 GLE350 4Matic
2022 W232 Grinding Noise Hard Left/Right Turn When Cold
I have a 2022 W232 with less than 1,500 miles on it, that makes a grinding noise when making a hard left/right turn, especially when it's below 40 degrees outside.
What could be the cause of that?
What could be the cause of that?
Junior Member
Joined: Feb 2022
Posts: 35
Likes: 23
s63
I’ve noticed something similar when turning the wheel all the way to one side or the other. I thought it might be the tires rubbing on something in the wheel well. I’ve been debating making a service appointment for it.
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Joined: Sep 2018
Posts: 3,243
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From: New Orleans Area
2015 E400 Sedan
From what I can find looks like Electric steering power assist? IF not then check pump and flid level otherwise
is sound occurring at end of wheel movement or the entire time?
I would get on lift and move wheels left and right to check for interference where something is touching but should not be.
If OK. I would check wheel bearings and brakes.
Then check steering rack
Then steering linkage external to cabin
then Steering wheel and linkages etc inside.
I also read these have rear wheel steering. Wonder if it could be due to that system?
is sound occurring at end of wheel movement or the entire time?
I would get on lift and move wheels left and right to check for interference where something is touching but should not be.
If OK. I would check wheel bearings and brakes.
Then check steering rack
Then steering linkage external to cabin
then Steering wheel and linkages etc inside.
I also read these have rear wheel steering. Wonder if it could be due to that system?
Junior Member
Joined: Feb 2022
Posts: 35
Likes: 23
s63
From what I can find looks like Electric steering power assist? IF not then check pump and flid level otherwise
is sound occurring at end of wheel movement or the entire time?
I would get on lift and move wheels left and right to check for interference where something is touching but should not be.
If OK. I would check wheel bearings and brakes.
Then check steering rack
Then steering linkage external to cabin
then Steering wheel and linkages etc inside.
I also read these have rear wheel steering. Wonder if it could be due to that system?
is sound occurring at end of wheel movement or the entire time?
I would get on lift and move wheels left and right to check for interference where something is touching but should not be.
If OK. I would check wheel bearings and brakes.
Then check steering rack
Then steering linkage external to cabin
then Steering wheel and linkages etc inside.
I also read these have rear wheel steering. Wonder if it could be due to that system?
I think I will bring it in. I have almost 600 miles on mine and I’m planning to take it to the track once I cross nicely over 1000, so I need to get it sorted.
Junior Member
Joined: Aug 2023
Posts: 22
Likes: 10
2022 SL63, 2020 Porsche Taycan
Are you sure you're not experiencing tread slip from the ackermann effect on front steering geometry?
Wikipedia on Ackermann
From the article "The use of such geometry helps reduce tire temperatures during high-speed cornering but compromises performance in low-speed maneuvers" This is common on high performance cars with more aggressive steering geometry, wide tires, and summer rubber compounds in cold weather. The tread doesn't "slip" cleanly over the ground near/at full steering lock when moving due to the different tracks each front wheel takes, and you end up with juddering and noises as the slip occurs.
Wikipedia on Ackermann
From the article "The use of such geometry helps reduce tire temperatures during high-speed cornering but compromises performance in low-speed maneuvers" This is common on high performance cars with more aggressive steering geometry, wide tires, and summer rubber compounds in cold weather. The tread doesn't "slip" cleanly over the ground near/at full steering lock when moving due to the different tracks each front wheel takes, and you end up with juddering and noises as the slip occurs.
Senior Member
Joined: May 2003
Posts: 293
Likes: 214
From: GA
‘24 Maserati GranTurismo Trofeo;'22 AMG SL55;'23 Porsche Cayenne S Coupe;'13 Porsche Boxster S
The noise in cold weather is because of the summer tires. The rubber compound doesn’t like temps below 45 degrees. This is normal.
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Joined: Jan 2020
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2024 Audi RS6 Avant. 2022 AMG SL63
Vert_lover
I have 22SL63 150 Miles just purchased, I noticed the same thing when making the sharp left pulling out of my driveway, happens every time, I thing you are on to something with your explanation
I have 22SL63 150 Miles just purchased, I noticed the same thing when making the sharp left pulling out of my driveway, happens every time, I thing you are on to something with your explanation
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MBWorld Fanatic!
Joined: Jan 2024
Posts: 2,515
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From: DFW
SL63
I have this same non problem.
After cold starting, and trying to turn steering wheel not even a full turn, there is a tire plowing on pavement sound, with accompanying ratcheting thumping.
Dealer said it’s normal until tires warmup.
After cold starting, and trying to turn steering wheel not even a full turn, there is a tire plowing on pavement sound, with accompanying ratcheting thumping.
Dealer said it’s normal until tires warmup.
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Joined: Oct 2010
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From: Corona Del Mar, CA
2019 SL450, 2019 E450 Luxury Trim Wagon, 2024 BMW I7 xDrive60
The way several here have described this, it would appear that they have never experienced it before with other vehicles, in the same place, under the same conditions. If that is so, WHY is it showing up with their new SL and not with their other vehicles?
Member
Joined: Feb 2023
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From: Chicago and Palm Springs
2025 BMW Z4 M40i (Manual); 2025 Lexus NXH Luxury; 2021 Porsche Macan S; 2023 Audi Q5
Maybe they've never had AWD cars with summer tires on it before. Having had several and living where it's quite cold in the winter, I can assure you the Ackerman effect is not limited to R232 SLs.
Senior Member
Joined: May 2003
Posts: 293
Likes: 214
From: GA
‘24 Maserati GranTurismo Trofeo;'22 AMG SL55;'23 Porsche Cayenne S Coupe;'13 Porsche Boxster S
Along the lines of what @drgek said , most cars do not come with summer tires. Cars with all season or winter tires will not have the noise at low temps. I changed the summer tires on my Boxster to high performance all season tires last year to stop my wife from asking about the chattering noise in the winter (and to ensure we had adequate grip in the cold temps). When I lived in Connecticut all of my cars had a set of dedicated summer tires and a set of winter tires (even our SUVs for better snow braking performance). In Atlanta, snow is very rare so I keep the summer tires on my SL and put up with the noise until the temps rise during the winter mornings.
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