S-Class (W223) 2021 to Present

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Old Oct 11, 2023 | 10:48 AM
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Mio's Avatar
Mio
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W223
W223

Hello,
I have a question, on my Mercedes 223 s 400D I have factory tires 255/35/R21 and 285/30/R21. New s ​​223 amg has 255/40/R21 and 285/35/R21 tires, so I'm wondering if I can put that dimension on 400 d, since these factory tires are very low.
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Old Oct 11, 2023 | 05:04 PM
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Originally Posted by Mio
Hello,
I have a question, on my Mercedes 223 s 400D I have factory tires 255/35/R21 and 285/30/R21. New s ​​223 amg has 255/40/R21 and 285/35/R21 tires, so I'm wondering if I can put that dimension on 400 d, since these factory tires are very low.
Yep! There are some discussion on this and someone did that. I would do that if I had the 21s.
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Old Oct 11, 2023 | 08:37 PM
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2014 Mercedes E350 4matic Wagon, 2018 Fiat 124 Spyder Lusso manual, 2005 Acura TSX manual
Just make sure to retune your speedo
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Old Oct 11, 2023 | 09:21 PM
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23 S580 Executive
I'd wait and see if they're popping them left and right like the current 21" owners have experienced with their wheels. I don't know if you've read about that or not but I'd recommend a search if that's a not, it isn't pretty.
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Old Oct 12, 2023 | 11:39 AM
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No need to retune speedo... The change in tire size is within 3 percent margin so it's with limits and it's not easy to even mess with the speedo.
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